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List of state highways in Iowa

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State highways in the U.S. state of Iowa are owned and maintained by the Iowa Department of Transportation.

alt1=Primary Road 6 route markeralt2=1926 Iowa 16 route markeralt3=1961 Iowa 136 route marker route markeralt4=Iowa 330 route marker
Highway markers from different years
Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Highway nn (US nn)
StateIowa nn
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Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
No. 1 236[2] 380 Missouri state line near Lamoni Minnesota state line near Northwood 01920-01-011920 01926-01-011926 Jefferson Highway through Iowa; became US 65
Iowa 1 119.268 191.943 Iowa 2 south of Keosauqua US 151 south of Anamosa 01926-01-011926 current
Iowa 2 232 373 US 6 near Lewis IL 2 at Muscatine 01920-01-011920 01939-01-011939 Renumbered Iowa 92
Iowa 2 251.376 404.550 N-2 at Nebraska City, Neb. US 61 at Fort Madison 01941-01-011941 current
Iowa 3 264 425 N-2 at Nebraska City, Neb. IL 9 at Fort Madison 01920-01-011920 01941-01-011941 Renumbered Iowa 2
Iowa 3 326.163 524.908 SD 50 near Westfield US 52 / US 61 / US 151 in Dubuque 01945-01-011945 current
Iowa 4 24.3 39.1 US 59 / Iowa 141 at Denison Iowa 175 at Odebolt 01920-01-011920 01968-12-311968 Renumbered Iowa 39
Iowa 4 146.343 235.516 Iowa 44 in Panora MN 4 near Estherville 01969-01-011969 current Former Iowa 17
Iowa 5 76.4 123.0 Iowa 3 near Aurelia US 169 at Fort Dodge 01920-01-011920 01968-12-311968 Renumbered Iowa 7
Iowa 5 103.540 166.631 Route 5 south of Cincinnati I-35 near West Des Moines 01969-01-011969 current Former portion of Iowa 60
No. 6 369[2] 594 Nebraska state line at Council Bluffs Illinois state line at Clinton 01920-01-011920 01926-01-011926 Lincoln Highway through Iowa; became US 30
Iowa 6 104 167 Route 5 near Cincinnati US 32 in Des Moines 01926-01-011926 01931-01-011931 Formerly No. 17 and No. 59
Iowa 7 140 225 US 6 at Council Bluffs City US 6 in Des Moines 01920-01-011920 01939-01-011939 Replaced by Iowa 64
Iowa 7 0.5 0.8 Iowa 99 in Oakville Oakville 01955-01-011955 01957-01-011957 Renumbered Iowa 407; spur route
Iowa 7 22 35 I-29 / US 77 in Sioux City Iowa 3 near Brunsville 01957-01-011957 01968-12-311968 Former Iowa 29; portions given to Woodbury county and the rest was renumbered as unsigned Iowa 985
Iowa 7 73.661 118.546 Iowa 3 near Aurelia US 169 at Fort Dodge 01969-01-011969 current Former Iowa 5
No. 8 283[2] 455 No. 6 in Council Bluffs Illinois state line at Burlington 01920-01-011920 01926-01-011926 Became US 34
Iowa 8 13.961 22.468 US 63 in Traer US 218 near Garrison 01926-01-011926 current
Iowa 9 295.088 474.898 SD 42 near Larchwood WIS 82 at Lansing 01920-01-011920 current
Iowa 10 104.512 168.196 SD 46 near Hawarden Iowa 4 at Havelock 01920-01-011920 current
Iowa 11 98 158 US 151 / Iowa 64 in Cedar Rapids US 52 / Iowa 24 in Calmar 01920-01-011920 01941-01-011941 Renumbered as part of Iowa 150
Iowa 12 46.274 74.471 US 20 / US 75 at Sioux City Iowa 10 in Hawarden 01920-01-011920 current Signed as US 20 Bus through Sioux City
Iowa 13 85.235 137.172 US 30 / US 151 near Bertram US 52 near Froelich 01920-01-011920 current
Iowa 14 187.838 302.296 Iowa 2 at Corydon US 18 / US 218 Bus in Charles City 01920-01-011920 current
Iowa 15 111 179 US 30 in Ames Minnesota state line near Lake Mills 01920-01-011920 01935-01-011935 Replaced by US 69
Iowa 15 14.3 23.0 Iowa 137 at Eddyville US 63 in Ottumwa 01937-01-011937 01968-12-311968 Renumbered Iowa 23
Iowa 15 4.655 7.491 Route 15 south of Milton Iowa 2 at Milton 01969-01-011969 02003-01-012003 Former Iowa 23
Iowa 15 63.578 102.319 Iowa 3 near Pocahontas MN 15 near Armstrong 01969-01-011969 current Former Iowa 44
Iowa 16 Missouri state line near Redding Minnesota state line near Ledyard 01920-01-011920 01930-01-011930 Became US 169
Iowa 16 65.488 105.393 US 34 near Agency US 61 at Wever 01930-01-011930 current
Iowa 17 146.3 235.4 Iowa 64 in Panora MN 4 near Estherville 01920-01-011920 01968-12-311968 Renumbered Iowa 4
Iowa 17 102.789 165.423 Iowa 141 at Granger US 18 near Wesley 01969-01-011969 current Former portion of Iowa 60
No. 18 148 238 Missouri state line at Braddyville No. 23 at Sac City 01920-01-011920 01926-01-011926 Became US 71
No. 19 South Dakota state line near Inwood Wisconsin state line at Lansing 01920-01-011920 01926-01-011926 Replaced by US 18
Iowa 19 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 01927-01-011927 01957-01-011957 Renumbered Iowa 410
No. 20 324[2] 521 Illinois state line at Keokuk Minnesota state line near Burr Oak 01920-01-011920 01926-01-011926 Became US 61 and US 55
Iowa 21 Iowa 141 near Denison Minnesota state line near Allendorf 01920-01-011920 01934-01-011934 Replaced by Iowa 73
Iowa 21 97.152 156.351 Iowa 149 near Hedrick US 20 / Iowa 27 at Waterloo 01934-01-011934 current
No. 22 34[2] 55 No. 5 at Le Mars Minnesota state line north of Rock Rapids 01920-01-011920 01926-01-011926 Became US 75
Iowa 22 97.905 157.563 Iowa 21 near Thornburg US 61 at Davenport 01926-01-011926 current
No. 23 130[2] 209 South Dakota state line at Sioux City No. 16 at Fort Dodge 01920-01-011920 01926-01-011926 Became US 20
Iowa 23 4.7 7.6 Route 15 south of Milton Iowa 2 at Milton 01926-01-011926 01968-01-011968 Renumbered Iowa 15
Iowa 23 14.316 23.039 US 63 in Ottumwa Iowa 137 at Eddyville 01969-01-011969 01997-01-011997 Former Iowa 15; replaced by US 63 and county roads
Iowa 23 16.022 25.785 Iowa 92 at Oskaloosa Iowa 149 near Fremont 01997-01-011997 current Former US 63
Iowa 24 27.546 44.331 US 18 / US 63 in New Hampton US 52 / Iowa 150 in Calmar 01928-01-011928 current
No. 25 20 32 No. 15 / No. 24 at Winterset No. 2 / No. 17 at Adel 01920-01-011920 01926-01-011926 Renumbered Iowa 16
Iowa 25 103.419 166.437 Iowa 2 near Benton US 30 near Scranton 01926-01-011926 current
Iowa 26 9.1 14.6 US 18 in Inwood Iowa 9 near Larchwood 01930-01-011930 01968-12-311968 Renumbered Iowa 182
Iowa 26 11.370 18.298 Iowa 9 in Lansing MN 26 at New Albin 01969-01-011969 current Former Iowa 182
Iowa 27 6.8 10.9 Alvord US 75 near Rock Rapids 01930-01-011930 01980-01-011980 Spur route

Iowa 27
281.689 453.335 Route 27 near Wayland, Mo. I-35 at the Minnesota state line 02001-01-012001 current Avenue of the Saints
No. 28 72[2] 116 No. 6 / No. 11 in Cedar Rapids No. 5 / No. 20 in Dubuque 01920-01-011920 01926-01-011926 Became US 161
Iowa 28 21.613 34.783 Iowa 92 at Martensdale I-35 / I-80 at Johnston 01926-01-011926 current
Iowa 29 22 35 I-29 / US 77 in Sioux City Iowa 3 near Brunsville 01920-01-011920 01957-01-011957 Renumbered Iowa 7
No. 30 25 40 No. 23 at Moville No. 5 at Remsen 01920-01-011920 01926-01-011926 Renumbered Iowa 140
Iowa 31 38.504 61.966 US 59 near Quimby Iowa 141 near Smithland 01920-01-011920 current
No. 32 5 8 No. 5 near Cleghorn Cleghorn 01920-01-011920 01926-01-011926 Renumbered Iowa 145
Iowa 32 5.101 8.209 US 20 at Dubuque US 52 / Iowa 3 at Sageville 01995-01-011995 02017-01-012017
Iowa 33 55.8 89.8 US 75 at Le Mars MN 60 at Bigelow, Minn. 01930-01-011930 01968-12-311968 Renumbered Iowa 60
No. 34 68 109 No. 4 at Denison No. 12 at Sioux City 01920-01-011920 01926-01-011926 Renumbered Iowa 141
Iowa 36 2.983 4.801 Wall Lake US 71 near Wall Lake 01920-01-011920 02003-01-012003 Spur route
Iowa 37 40.321 64.890 Iowa 175 near Turin US 59 near Earling 01920-01-011920 current
Iowa 38 98.941 159.230 US 61 Bus / Iowa 92 in Muscatine Iowa 3 near Edgewood 01920-01-011920 current
Iowa 39 11.5 18.5 US 30 near Logan Iowa 64/Iowa 191 at Portsmouth 01920-01-011920 01968-12-311968 Renumbered Iowa 44
Iowa 39 24.321 39.141 US 59 at Denison Iowa 175 at Odebolt 01969-01-011969 current Former Iowa 4
No. 40 262[2] 422 No. 20 in Keokuk Minnesota state line near Mona 01920-01-011920 01926-01-011926 Renumbered US 161, US 30, and US 218
Iowa 40 3.524 5.671 Allerton Iowa 2 near Corydon 01926-01-011926 02003-01-012003 Spur route
Iowa 41 1.827 2.940 Malvern US 34 near Malvern 01920-01-011920 02003-01-012003 Spur route
Iowa 42 4.2 6.8 US 275 / Iowa 2 near Riverton Riverton 01920-01-011920 01981-01-011981 Spur route
Iowa 43 1.5 2.4 Ringsted Iowa 15 near Ringsted 01920-01-011920 01980-01-011980 Spur route
Iowa 44 63.6 102.4 Iowa 3 near Pocahontas MN 15 near Armstrong 01920-01-011920 01968-12-311968 Renumbered Iowa 15
Iowa 44 104.524 168.215 US 30 near Logan Iowa 141 at Grimes 01969-01-011969 current Former Iowa 39 and Iowa 64
Iowa 45 1.324 2.131 Manilla Iowa 141 near Manilla 01920-01-011920 02003-01-012003 Spur route
Iowa 46 6.568 10.570 Iowa 5 near Avon Iowa 163 in Des Moines 01953-01-011953 01998-01-011998
Iowa 47 0.8 1.3 Iowa 14 near Allison Allison 01941-01-011941 01980-01-011980 Spur route
Iowa 48 47.919 77.118 US 59 at Shenandoah US 6 near Lewis 01920-01-011920 current
Iowa 49 27.228 43.819 Iowa 2 in Bedford US 34 in Adams County 01920-01-011920 02003-01-012003 Was originally a spur route from US 34 to Lenox
Iowa 50 7.135 11.483 US 169 near Lehigh Lehigh 01920-01-011920 02003-01-012003 Spur route
Iowa 51 11.007 17.714 US 18 / US 52 at Postville Iowa 9 near Waukon 01920-01-011920 current
No. 53 13 21 No. 14 near Rockford No. 19 near Nora Springs 01920-01-011920 01926-01-011926 Renumbered Iowa 147
Iowa 53 3 5 Iowa 10 near Clarksville Clarksville 01926-01-011926 01949-01-011949 Formerly No. 55
Iowa 54 2.9 4.7 Marble Rock Iowa 14 in Floyd County 01920-01-011920 01980-01-011980 Spur route
No. 55 3 5 No. 10 near Clarksville Clarksville 01920-01-011920 01926-01-011926 Became Iowa 53
Iowa 55 4.506 7.252 Seymour Iowa 2 near Promise City 01934-01-011934 02003-01-012003 Spur route
Iowa 56 24.432 39.319 Iowa 150 at West Union Iowa 13 at Elkader 01920-01-011920 current
Iowa 57 43.765 70.433 US 65 near Iowa Falls US 218 / Iowa 27 / Iowa 58 at Cedar Falls 01986-01-011986 current
Iowa 58 12.030 19.360 US 63 at Hudson US 218 / Iowa 27 / Iowa 57 at Cedar Falls 01920-01-011920 current
Iowa 60 223.8 360.2 Route 5 south of Cincinnati US 18 near Wesley 01920-01-011920 01968-01-011968 Renumbered Iowa 5 and Iowa 17
Iowa 60 58.771 94.583 US 75 at Le Mars MN 60 at Bigelow, Minn. 01969-01-011969 current Former Iowa 33
No. 61 73 117 No. 28 at Anamosa No. 6 in Lyons 01920-01-011920 01926-01-011926 Renumbered Iowa 117 and Iowa 136
Iowa 62 19.633 31.596 Iowa 64 at Maquoketa US 52 in Bellevue 01920-01-011920 current
No. 63 24 39 No. 59 in New Sharon No. 7 in Grinnell 01920-01-011920 01926-01-011926 Renumbered Iowa 146
Iowa 64 64.355 103.569 US 151 at Anamosa US 52 / IL 64 at Savanna, Ill. 01936-01-011936 current
No. 65 21 34 No. 8 at Lucas No. 1 south of Indianola 01920-01-011920 01926-01-011926 Renumbered Iowa 137
Iowa 66 7.011 11.283 Iowa 2 near Diagonal Diagonal 01930-01-011930 02003-01-012003 Spur route
Iowa 68 1.933 3.111 Melrose US 34 near Melrose 01920-01-011920 02003-01-012003 Spur route
No. 69 3 5 No. 3 near Mystic Mystic 01920-01-011920 01926-01-011926 Renumbered Iowa 138
Iowa 70 23.954 38.550 Iowa 92 at Columbus Junction US 6 in West Liberty 01969-01-011969 current Former Iowa 76
No. 71 3 5 Moulton No. 3 near Moulton 01920-01-011920 01926-01-011926 Renumbered Iowa 142
Iowa 73 225 362 Missouri state line south of Shenandoah Minnesota state line near Allendorf 01934-01-011934 01935-01-011935 Replaced by US 59
No. 75 2 3 No. 5 near Marcus Marcus 01920-01-011920 01926-01-011926 Renumbered Iowa 143
Iowa 76 22.9 36.9 Columbus City US 6 in West Liberty 01920-01-011920 01968-12-311968 Renumbered Iowa 70
Iowa 76 48.911 78.715 US 18 near McGregor MN 76 near Eitzen, Minn. 01969-01-011969 current Former portion of Iowa 13
Iowa 77 2.685 4.321 Iowa 92 near Keota Keota 01920-01-011920 02003-01-012003 Spur route
Iowa 78 58.429 94.032 Iowa 149 near Martinsburg US 61 near Morning Sun 01920-01-011920 current
Iowa 79 1.7 2.7 Iowa 2 near Bonaparte Bonaparte 01920-01-011920 01980-01-011980 Spur route
Iowa 79 5.637 9.072 Geode State Park US 34 in Middletown 01980-01-011980 02003-01-012003 Park access road
Iowa 81 9.2 14.8 Iowa 92 near West Chester Iowa 22 at Wellman 01920-01-011920 01968-12-311968 Renumbered Iowa 114
Iowa 81 2.215 3.565 Route 81 near Farmington Iowa 2 near Farmington 01969-01-011969 current Former Iowa 114
Iowa 82 3.773 6.072 Blairstown US 30 near Blairstown 01920-01-011920 02003-01-012003 Spur route
Iowa 83 34.191 55.025 US 59 in Avoca Iowa 148 in Anita 01920-01-011920 current
Iowa 84 2.0 3.2 The Eastern Iowa Airport I-380 near Cedar Rapids 01943-01-011943 01980-01-011980 Airport access road
Iowa 85 8.408 13.531 Montezuma city limits Iowa 21 near Deep River 01920-01-011920 current
Iowa 86 0.4 0.6 Fertile Iowa 9 at Fertile 01945-01-011945 01980-01-011980 Spur route
Iowa 86 12.519 20.147 US 71 near Milford MN 86 near Spirit Lake 01981-01-011981 current
Iowa 88 8.0 12.9 US 61 / Iowa 2 in Fort Madison Iowa 16 in Denmark 01940-01-011940 01980-01-011980 Originally a spur route
Iowa 89 7.7 12.4 Iowa 141 near Woodward Iowa 17 in Madrid 01946-01-011946 01980-11-011980 Replaced by Iowa 210
No. 90 40 64 No. 17 near Bouton No. 16 at Harcourt 01920-01-011920 01926-01-011926 Became Iowa 16
Iowa 90 16 26 Iowa 14 at Grundy Center Iowa 59 near Voorhies 01926-01-011926 01932-01-011932 Formerly No. 58
Iowa 90 16.2 26.1 I-80 in Dallas County I-35 in Des Moines 01932-01-011932 01981-01-011981
Iowa 91 4.1 6.6 Ledyard US 169 near Ledyard 01940-01-011940 01980-05-011980 Spur route
Iowa 91 4.643 7.472 Iowa 9 in Lyon County MN 91 at the Minnesota state line 01980-01-011980 02003-01-012003  
Iowa 92 274.231 441.332 US 275 / N-92 in Council Bluffs IL 92 at Muscatine 01939-01-011939 current
Iowa 93 29.534 47.530 US 63 near Tripoli Iowa 150 in Fayette 01920-01-011920 current
Iowa 94 11.168 17.973 US 151 Business in Cedar Rapids Palo 01966-01-011966 02003-01-012003 Spur route
Iowa 95 3.6 5.8 Carbon Iowa 148 north of Corning 01932-01-011932 01980-01-011980 Spur route
Iowa 96 16.635 26.771 Iowa 14 near Gladbrook US 63 near Gladbrook 01920-01-011920 current
Iowa 97 1.532 2.466 Russell US 34 near Russell 01920-01-011920 02003-01-012003 Spur route
Iowa 98 1.814 2.919 Leando Iowa 16 near Douds 01944-01-011944 02017-01-012017 Spur route
Iowa 99 33.232 53.482 US 34 in Burlington US 61 in Wapello 01931-01-011931 02003-01-012003  
Iowa 100 11.628 18.713 Covington Road in Cedar Rapids US 151 / Iowa 13 near Marion 01984-01-011984 current
Iowa 101 15.56 25.04 US 218 in Vinton Iowa 150 north of Urbana 01920-01-011920 01984-01-011984 Replaced by a relocated Iowa 150
Iowa 102 1.9 3.1 Hawkeye US 18 near Hawkeye 01920-01-011920 01980-01-011980
Iowa 102 0.501 0.806 New Sharon city limits US 63 / Iowa 146 in New Sharon 01980-01-011980 current Unsigned highway
Iowa 103 15.649 25.185 US 218 near Donnellson US 61 / Iowa 2 in Fort Madison 01920-01-011920 02003-01-012003  
Iowa 104 1.5 2.4 Woodburn US 34 near Woodburn 01927-01-011927 01980-01-011980 Spur route
Iowa 106 9.0 14.5 Iowa 107 in Clear Lake US 65 in Mason City 01920-01-011920 01980-01-011980  
Iowa 107 27.579 44.384 Iowa 3 near Alexander CR B35 near Clear Lake 01920-01-011920 02011-01-012011 All but parts in Meservey and Thornton removed in 2003
Iowa 108 1.2 1.9 Delta Iowa 92 near Delta 01923-01-011923 01980-01-011980 Spur route
Iowa 109 1.268 2.041 Oxford US 6 near Oxford 01923-01-011923 02003-01-012003 Spur route
Iowa 110 14.789 23.801 US 20 at Schaller Iowa 7 at Storm Lake 01934-01-011934 current
Iowa 111 26.5 42.6 Woden Kanawha 01923-01-011923 01990-01-011990 Double spur route
Iowa 112 5.2 8.4 Volga Iowa 13 near Osborne 01931-01-011931 01980-01-011980 Spur route
Iowa 113 1.187 1.910 Iowa 64 near Spragueville Spragueville 01938-01-011938 02003-01-012003 Spur route
Iowa 114 2.2 3.5 Route 81 near Farmington Iowa 2 near Farmington 01923-01-011923 01968-12-311968 Renumbered Iowa 81
Iowa 114 9.2 14.8 Iowa 92 near West Chester Iowa 22 at Wellman 01969-01-011969 01980-01-011980 Former Iowa 81
Iowa 115 1.237 1.991 US 34 near Stanton Viking Lake State Park 01980-01-011980 02003-01-012003 Park access road
Iowa 116 2.776 4.468 US 218 near Waverly Iowa 3 in Waverly 01998-01-011998 current Section of US 218 Business in Waverly
Iowa 117 18.562 29.873 Iowa 163 at Prairie City US 65 / Iowa 330 near Mingo 01936-01-011936 current
Iowa 119 1.0 1.6 Dorchester Iowa 76 near Dorchester 01923-01-011923 01980-01-011980 Spur route
Iowa 120 0.8 1.3 Stanton US 34 near Stanton 01924-01-011924 01980-01-011980 Spur route
Iowa 122 12.264 19.737 I-35 / US 18 at Clear Lake Mason City city limits 01999-01-011999 current
Iowa 123 US 34 near Rome Rome 01970-01-011970 01980-01-011980 Spur route
Iowa 124 2.567 4.131 Iowa 4 in Calhoun County Twin Lakes State Park 01924-01-011924 02003-01-012003 Park access road
Iowa 126 0.7 1.1 US 6 near Mitchellville Mitchellville 01924-01-011924 01980-01-011980 Spur route
Iowa 127 15.985 25.725 I-29 near Mondamin US 30 in Logan 01924-01-011924 current
Iowa 128 6.982 11.236 Iowa 13 near Elkader US 52 near Garnavillo 01924-01-011924 current
Iowa 130 32.023 51.536 Iowa 38 in Tipton I-80 / US 61 at Davenport 01969-01-011969 current
Iowa 131 4.520 7.274 Iowa 21 in Belle Plaine US 30 near Belle Plaine 01937-01-011937 02003-01-012003 Part of the Lincoln Highway
Iowa 133 0.970 1.561 US 30 in Nevada Nevada 01963-01-011963 02003-01-012003 Spur route
Iowa 134 4.0 6.4 US 65 near Hampton Geneva 01935-01-011935 01980-01-011980 Spur route
Iowa 135 1.9 3.1 Montour US 30 near Montour 01954-01-011954 01980-01-011980 Spur route
Iowa 136 97.733 157.286 IL 136 at Clinton US 52 / Iowa 3 at Luxemburg 01926-01-011926 current
Iowa 137 21 34 US 34 at Lucas US 65 near Indianola 01926-01-011926 01934-01-011934 Formerly No. 65
Iowa 137 14.526 23.377 Iowa 5 at Albia US 63 / Iowa 163 at Eddyville 01934-01-011934 current
Iowa 138 3 5 Iowa 2 near Mystic Mystic 01926-01-011926 01973-01-011973 Formerly No. 69
Iowa 139 21 34 US 161 in Iowa City Iowa 38 near Rochester 01926-01-011926 01929-01-011929 Formerly No. 74
Iowa 139 11.431 18.396 Iowa 9 near Cresco MN 139 near Harmony, Minn 01930-01-011930 current
Iowa 140 25.309 40.731 US 20 at Moville Iowa 3 at Remsen 01926-01-011926 current
Iowa 141 155.362 250.031 I-29 near Sloan I-35 / I-80 at Grimes 01926-01-011926 current
Iowa 142 10.5 16.9 Route 202 at Coatsville, Mo Iowa 2 near Moulton 01926-01-011926 01968-12-311968 Renumbered Iowa 202
Iowa 142 20.901 33.637 Iowa 2 in Plano Iowa 5 near Moravia 01980-01-011980 02003-01-012003  
Iowa 143 12.049 19.391 Iowa 3 at Marcus Iowa 10 at Granville 01926-01-011926 current
Iowa 144 34.039 54.780 Iowa 141 at Perry Iowa 175 near Harcourt 01926-01-011926 current
Iowa 145 5 8 Iowa 5 near Cleghorn Cleghorn 01926-01-011926 01931-01-011931 Formerly No. 32
Iowa 145 7.408 11.922 I-29 near Thurman US 275 near Sidney 01931-01-011931 02003-01-012003  
Iowa 146 42.735 68.775 US 63 / Iowa 102 in New Sharon US 30 in Le Grand 01926-01-011926 current
Iowa 147 6.706 10.792 Rockford Iowa 14 in Floyd County 01926-01-011926 02003-01-012003 Spur route
Iowa 148 66.828 107.549 Route 148 near Bedford I-80 / US 6 near Anita 01926-01-011926 current
Iowa 149 65.897 106.051 US 34 in Ottumwa I-80 near Williamsburg 01926-01-011926 current
Iowa 150 19 31 US 32 at Homestead US 30 near Cedar Rapids 01926-01-011926 01930-01-011930 Formerly No. 13
Iowa 150 85.093 136.944 US 218 at Vinton US 52 / Iowa 24 at Calmar 01941-01-011941 current
Iowa 151 13 21 US 71 at Auburn Iowa 17 near Lake City 01926-01-011926 01938-01-011938 Formerly No. 35
Iowa 152 2 3 US 34 near Murray Murray 01926-01-011926 01980-01-011980 Formerly No. 8
Iowa 152 1.402 2.256 I-35 near Osceola US 69 at Osceola 01980-01-011980 02014-01-012014
Iowa 155 3.0 4.8 Nodaway US 34 near Nodaway 01933-01-011933 01980-01-011980 Spur route
Iowa 156 4.748 7.641 Iowa 5 near Marysville Bussey 01928-01-011928 02003-01-012003 Spur route
Iowa 157 1.032 1.661 US 63 near Lime Springs Lime Springs 01931-01-011931 02003-01-012003 Spur route
Iowa 159 1.8 2.9 Iowa 92 near Harper Harper 01929-01-011929 01980-01-011980 Spur route
Iowa 160 2.446 3.936 Iowa 415 at Ankeny I-35 at Ankeny 01947-01-011947 current
Iowa 161 1.224 1.970 Iowa 141 at Dedham Iowa 141 near Dedham 01951-01-011951 02003-01-012003 Former route of Iowa 141
Iowa 162 2.660 4.281 Pammel State Park Iowa 92 in Madison County 01930-01-011930 01982-01-011982 Park access road; renumbered Iowa 322 because it was too close to US 169
Iowa 163 166.270 267.586 US 69 in Des Moines US 34 at Burlington 01937-01-011937 current
Iowa 165 0.410 0.660 Abbott Drive at Omaha, Neb. Abbott Drive at Omaha, Neb. 01957-01-011957 current Only state highway west of the Missouri River
Iowa 166 0.6 1.0 Hastings US 34 near Hastings 01930-01-011930 01980-01-011980 Spur route
Iowa 167 3.1 5.0 Doon US 75 near Doon 01930-01-011930 01980-01-011980 Spur route
Iowa 168 2.8 4.5 Iowa 83 near Minden Shelby 01930-01-011930 01980-01-011980 Spur route
Iowa 171 1.1 1.8 Elberon Iowa 21 near Elberon 01935-01-011935 01980-01-011980 Spur route
Iowa 172 4.2 6.8 Elgin US 18 in Clermont 01930-01-011930 01980-01-011980 Spur route
Iowa 173 14.680 23.625 Iowa 83 near Atlantic Iowa 44 at Kimballton 01930-01-011930 current
Iowa 175 221.367 356.256 N-51 at Decatur, Neb US 63 near Hudson 01930-01-011930 current
Iowa 177 3.2 5.1 Iowa 9 near Osage Elgin 01937-01-011937 01980-01-011980 Spur route
Iowa 178 0.9 1.4 Iowa 9 near Little Rock Little Rock 01930-01-011930 01980-01-011980 Spur route
Iowa 179 0.7 1.1 US 69 near Klemme Klemme 01930-01-011930 01980-01-011980 Spur route
Iowa 180 2.4 3.9 Hayesville Iowa 149 near Hayesville 01930-01-011930 01980-01-011980 Spur route
Iowa 181 9.596 15.443 Iowa 5 / Iowa 92 near Pleasantville Melcher-Dallas 01931-01-011931 02003-01-012003 Spur route
Iowa 182 11.4 18.3 Iowa 9 in Lansing MN 26 at New Albin 01930-01-011930 01968-12-311968 Renumbered Iowa 26
Iowa 182 9.051 14.566 US 18 in Inwood Iowa 9 near Larchwood 01969-01-011969 current
Iowa 183 29.952 48.203 Iowa 127 near Mondamin Iowa 141 in Ute 01930-01-011930 current
Iowa 184 9.596 15.443 US 275 near Randolph Randolph 01934-01-011934 02003-01-012003 Spur route
Iowa 186 3.3 5.3 US 34 near Prescott Prescott 01930-01-011930 01980-01-011980 Spur route
Iowa 187 28.385 45.681 US 20 near Masonville Iowa 150 near Fayette 01931-01-011931 current
Iowa 188 24.231 38.996 Iowa 3 near Clarksville US 63 near Tripoli 01945-01-011945 current
Iowa 189 1.0 1.6 Bridgewater Iowa 92 north or Bridgwater 01930-01-011930 01980-01-011980 Spur route
Iowa 190 7.1 11.4 Fairbank Iowa 150 near Oelwein 01931-01-011931 01980-01-011980 Replaced by Iowa 281
Iowa 191 22.790 36.677 I-680 near Neola Iowa 37 at Earling 01930-01-011930 current
Iowa 192 2.426 3.904 I-29 / I-80 at Council Bluffs Kanesville Boulevard in Council Bluffs 01931-01-011931 current Renumbered from Iowa 241; truncated in 2016
Iowa 193 10.852 17.465 US 18 in Fayette County Iowa 24 in Jackson Junction 01930-01-011930 02003-01-012003  
Iowa 195 2.896 4.661 Iowa 4 near Plover Plover 01935-01-011935 02003-01-012003 Spur route
Iowa 196 10.136 16.312 US 71 / Iowa 175 near Lake View US 20 near Sac City 01935-01-011935 02015-01-012015
Iowa 197 2.567 4.131 Iowa 3 near Albert City Albert City 01937-01-011937 02003-01-012003 Spur route
Iowa 198 2.231 3.590 Garrison US 218 near Garrison 01930-01-011930 02003-01-012003 Spur route
Iowa 199 2.666 4.291 Van Horne US 218 near Van Horne 01930-01-011930 02003-01-012003 Spur route
Iowa 200 2.163 3.481 US 30 near Keystone Keystone 01930-01-011930 02003-01-012003 Spur route
Iowa 201 4.755 7.652 Norway US 30 / US 218 near Atkins 01930-01-011930 02003-01-012003 Spur route
Iowa 202 10.461 16.835 Route 202 at Coatsville, Mo Iowa 2 near Moulton 01969-01-011969 current Former Iowa 142
Iowa 203 8.8 14.2 Iowa 9 Terril 01930-01-011930 01981-01-011981 Spur route
Iowa 204 5.407 8.702 Iowa 2 near Garden Grove Garden Grove 01930-01-011930 02003-01-012003 Spur route
Iowa 205 2.927 4.711 US 65 near Milo Milo 01930-01-011930 02003-01-012003 Spur route
Iowa 206 6.221 10.012 US 65 near Liberty Center Liberty Center 01930-01-011930 02003-01-012003 Spur route
Iowa 207 3.058 4.921 I-35 near New Virginia New Virginia 01930-01-011930 02003-01-012003 Spur route
Iowa 209 0.5 0.8 Iowa 149 near Conroy Conroy 01931-01-011931 01975-01-011975 Spur route
Iowa 210 34.781 55.975 Iowa 141 near Woodward US 65 near Collins 01938-01-011938 current
Iowa 212 12.157 19.565 Iowa 21 near Belle Plaine US 6 at Marengo 01934-01-011934 current
Iowa 213 3.9 6.3 Blakesburg US 34 north of Blakesburg 01931-01-011931 01980-01-011980 Spur route
Iowa 214 5.736 9.231 Iowa 175 near Ivester Wellsburg 01931-01-011931 02003-01-012003 Spur route
Iowa 215 8.738 14.062 Union Iowa 175 in Eldora 01931-01-011931 02003-01-012003 Spur route
Iowa 219 1.8 2.9 Iowa 9 near Lake Park Lake Park 01931-01-011931 01980-01-011980 Spur route
Iowa 220 7.233 11.640 US 6 at South Amana US 151 at Amana 01930-01-011930 current
Iowa 221 3.909 6.291 I-35 near Story City Roland 01947-01-011947 02003-01-012003 Spur route
Iowa 222 14.8 23.8 Iowa 15 near Ottosen Livermore 01931-01-011931 01980-01-011980 Spur route
Iowa 224 10.587 17.038 US 6 near Kellogg Iowa 14 near Laurel 01930-01-011930 current
Iowa 225 7.688 12.373 Sully Iowa 146 in Searsboro 01931-01-011931 02003-01-012003 Spur route
Iowa 226 10.8 17.4 US 18 Titonka 01931-01-011931 01980-01-011980 Spur route
Iowa 229 5.233 8.422 Garwin US 63 in Tama County 01931-01-011931 02003-01-012003 Spur route
Iowa 231 4.068 6.547 US 34 west of New London US 34 east of New London 02000-01-012000 02003-01-012003 Former section of US 34
Iowa 232 Earlham I-80 near Earlham 01931-01-011931 01980-01-011980 Spur route
Iowa 238 1.063 1.711 Iowa 9 near Harris Harris 01931-01-011931 02003-01-012003 Spur route
Iowa 239 0.510 0.821 Waubonsie State Park Iowa 2 in Fremont County 01931-01-011931 02003-01-012003 Park access road
Iowa 240 6.389 10.282 Royal US 71 in Clay County 01931-01-011931 02003-01-012003 Spur route
Iowa 241 1.1 1.8 Readlyn Iowa 3 near Readlyn 01931-01-011931 01980-01-011980 Spur route
Iowa 242 5.855 9.423 US 34 in Mills County Silver City 01931-01-011931 02003-01-012003 Spur route
Iowa 243 8.0 12.9 Iowa 140 near Kingsley Pierson 01931-01-011931 01980-01-011980 Spur route
Iowa 243 0.559 0.900 Black Hawk Lake State Park US 71 / Iowa 175 near Wall Lake 01980-01-011980 02003-01-012003 Park access road
Iowa 244 2.0 3.2 Henderson US 59 01931-01-011931 01980-01-011980 Spur route
Iowa 244 0.771 1.241 I-80 near Neola Iowa 191 in Neola 01980-01-011980 02003-01-012003  
Iowa 246 3.2 5.1 US 61 in Zwingle La Motte 01931-01-011931 01980-01-011980 Spur route
Iowa 248 1.0 1.6 Independence State Hospital US 20 in Independence 01931-01-011931 01980-01-011980 Hospital access road
Iowa 249 0.665 1.070 Iowa 78 near Winfield Winfield 01931-01-011931 02003-01-012003 Spur route
Iowa 250 0.6 1.0 Lakota US 169 / Iowa 9 near Lakota 01932-01-011932 01980-01-011980 Spur route
Iowa 251 1.7 2.7 St. Charles I-35 near St. Charles 01932-01-011932 01980-01-011980 Spur route
Iowa 252 0.584 0.940 US 61 / Iowa 92 near Grandview Grandview 01932-01-011932 02003-01-012003 Spur route
Iowa 253 0.932 1.500 Iowa 14 near Williamson Williamson 01932-01-011932 02003-01-012003 Spur route
Iowa 254 0.5 0.8 Iowa 92 at Massena Massena 01932-01-011932 01968-12-311968 Spur route; became Iowa 322
Iowa 254 7.9 12.7 Iowa 9 near Buffalo Center MN 254 near Rake 01969-01-011969 01980-01-011980 Spur route; formerly Iowa 322
Iowa 255 2.1 3.4 Orchard US 218 near Orchard 01932-01-011932 01980-01-011980 Spur route
Iowa 256 0.8 1.3 Iowa 17 near Corwith Corwith 01932-01-011932 01980-01-011980 Spur route
Iowa 258 1.989 3.201 I-35 near Van Wert US 69 near Van Wert 01933-01-011933 02003-01-012003  
Iowa 259 1.001 1.611 US 169 near Tingley Tingley 01953-01-011953 02003-01-012003 Spur route
Iowa 262 1.7 2.7 US 69 near Galt Galt 01933-01-011933 01980-01-011980 Spur route
Iowa 263 2.0 3.2 Coulter Latimer 01933-01-011933 01980-01-011980 Double spur route with Iowa 3
Iowa 263 12.511 20.135 Iowa 14 in Grundy County US 20 near Cedar Falls 02000-01-012000 02003-01-012003 Former section of US 20
Iowa 264 2.4 3.9 Linn Grove Iowa 10 near Linn Grove 01933-01-011933 01980-01-011980 Spur route
Iowa 266 1.709 2.750 US 69 near Weldon Weldon 01934-01-011934 02003-01-012003 Spur route
Iowa 267 1.1 1.8 Iowa 93 near Randalia Randalia 01934-01-011934 01980-01-011980 Spur route
Iowa 269 3.0 4.8 Iowa 16 near Stockport Stockport 01934-01-011934 01980-01-011980 Spur route
Iowa 270 1.8 2.9 Iowa 16 near Hillsboro Hillsboro 01934-01-011934 01980-01-011980 Spur route
Iowa 271 0.8 1.3 Iowa 4 near Yale Yale 01935-01-011935 01980-01-011980 Spur route
Iowa 273 10.025 16.134 Lake Wapello State Park US 63 near Drakesville 01935-01-011935 02003-01-012003 Park access road
Iowa 276 4.711 7.582 Spirit Lake city limits Minnesota state line 01934-01-011934 02003-01-012003 Park access road
Iowa 277 6.3 10.1 Numa Iowa 5 near Centerville 01935-01-011935 01980-01-011980 Spur route
Iowa 278 2.1 3.4 Rathbun Iowa 5 near Rathbun 01935-01-011935 01980-01-011980 Spur route
Iowa 279 1.983 3.191 US 30 / US 218 near Atkins Atkins 01935-01-011935 02003-01-012003 Spur route
Iowa 281 28.166 45.329 Waterloo city limits Iowa 150 at Oelwein 01935-01-011935 current
Iowa 282 5.283 8.502 Quasqueton Iowa 939 near Winthrop 01935-01-011935 02003-01-012003 Spur route
Iowa 284 5.5 8.9 Aurora Iowa 187 at Lamont 01935-01-011935 01980-01-011980 Spur route
Iowa 285 0.796 1.281 US 30 in Arcadia Arcadia 01935-01-011935 02003-01-012003 Spur route
Iowa 286 9.932 15.984 US 30 in Glidden Lanesboro 01935-01-011935 02003-01-012003 Spur route
Iowa 287 1.833 2.950 US 30 / US 218 near Newhall Newhall 01965-01-011965 02003-01-012003 Spur route
Iowa 288 4.6 7.4 US 65 near Manly Plymouth 01935-01-011935 01980-01-011980 Spur route
Iowa 289 6.0 9.7 Alta Vista US 63 near Lourdes 01935-01-011935 01980-01-011980 Spur route
Iowa 290 2.0 3.2 Farmersburg Iowa 13 near Farmersburg 01935-01-011935 01980-01-011980 Spur route
Iowa 292 3.2 5.1 Linden Iowa 44 01935-01-011935 01980-01-011980 Spur route
Iowa 293 1.4 2.3 Iowa 90 near Van Meter Van Meter 01935-01-011935 01980-01-011980 Spur route
Iowa 294 6.147 9.893 Iowa 2 in Decatur County Grand River 01935-01-011935 02003-01-012003 Spur route
Iowa 295 5.0 8.0 Westgate Iowa 150 near Maynard 01935-01-011935 01980-01-011980 Spur route
Iowa 296 5.0 8.0 CR C24 near Wadena Iowa 56 near Wadena 01935-01-011935 01980-01-011980 Spur route
Iowa 297 3.543 5.702 Gilbertville Raymond 01940-01-011940 02003-01-012003 Double spur with I-380
Iowa 299 5.556 8.942 New Providence Iowa 175 near Eldora 02003-01-012003 Spur route
Iowa 300 1.411 2.271 Modale I-29 near Modale 01935-01-011935 02003-01-012003 Spur route
Iowa 301 2.045 3.291 I-29 near Little Sioux Little Sioux 01935-01-011935 02003-01-012003 Spur route
Iowa 302 3.0 4.8 Thor Iowa 3 near Thor 01935-01-011935 01980-01-011980 Spur route
Iowa 304 1.6 2.6 Iowa 78 near Ollie Ollie 01935-01-011935 01980-01-011980 Spur route
Iowa 305 2.554 4.110 Letts US 61 / Iowa 92 near Letts 01935-01-011935 02003-01-012003 Spur route
Iowa 306 0.783 1.260 US 65 near Derby Derby 01935-01-011935 02003-01-012003 Spur route
Iowa 309 2.3 3.7 Beacon Iowa 137 in Oskaloosa 01935-01-011935 01980-01-011980 Spur route
Iowa 312 5.5 8.9 Iowa 9 near Riceville McIntire 01935-01-011935 01980-01-011980 Spur route
Iowa 314 6.277 10.102 Ayrshire US 18 near Ruthven 01935-01-011935 02003-01-012003 Spur route
Iowa 315 4.158 6.692 Iowa 4 near Palmer Palmer 01935-01-011935 02003-01-012003 Spur route
Iowa 316 5.183 8.341 Iowa 5 near Swan Runnells city limits 01935-01-011935 current Spur route
Iowa 317 0.7 1.1 US 65 near Zearing Zearing 01935-01-011935 01980-01-011980 Spur route
Iowa 318 5.5 8.9 Clutier Iowa 21 near Clutier 01935-01-011935 01980-01-011980 Spur route
Iowa 319 0.4 0.6 Gravity Iowa 148 at Gravity 01935-01-011935 01980-01-011980 Spur route
Iowa 322 7.9 12.7 Iowa 9 near Buffalo Center MN 254 near Rake 01935-01-011935 01968-12-311968 Spur route; became Iowa 254
Iowa 322 0.5 0.8 Iowa 92 at Massena Massena 01969-01-011969 01972-01-011972 Spur route; formerly Iowa 254
Iowa 322 2.660 4.281 Pammel State Park Iowa 92 in Madison County 01982-01-011982 02003-01-012003 Park access road; formerly Iowa 162
Iowa 323 3.8 6.1 Iowa 17 near Woolstock Woolstock 01935-01-011935 01980-01-011980 Spur route
Iowa 324 0.510 0.821 Iowa 175 near Onawa Lewis and Clark State Park 01956-01-011956 02003-01-012003 Park access road
Iowa 325 3.617 5.821 Spillville US 52 near Calmar 01935-01-011935 02003-01-012003 Spur route
Iowa 327 2.070 3.331 Iowa 276 in Spirit Lake near Orleans 01935-01-011935 02003-01-012003 Spur route
Iowa 328 2.3 3.7 US 20 near Galva Galva 01935-01-011935 01980-01-011980 Spur route
Iowa 329 4.8 7.7 US 169 at Boxholm Pilot Mound 01935-01-011935 01980-01-011980 Spur route
Iowa 330 47.748 76.843 I-80 / US 6 / US 65 at Altoona Iowa 14 near Albion 01969-01-011969 current
Iowa 331 1.5 2.4 Eldridge US 61 near Eldridge 01935-01-011935 01967-01-011967 Spur route
Iowa 332 1.0 1.6 Pilot Knob State Park Iowa 9 near Forest City 01935-01-011935 01980-01-011980 Park access road
Iowa 333 1.558 2.507 I-29 at Hamburg US 275 in Hamburg 01935-01-011935 current
Iowa 334 1.8 2.9 US 63 near Frederika Frederika 01935-01-011935 01980-01-011980 Spur route
Iowa 335 0.6 1.0 Iowa 141 near Dawson Dawson 01935-01-011935 01980-01-011980 Spur route
Iowa 336 2.4 3.9 Iowa 150 near Rowley Rowley 01936-01-011936 01980-01-011980 Spur route
Iowa 337 3.4 5.5 Iowa 9 near Grafton Grafton 01936-01-011936 01980-01-011980 Spur route
Iowa 340 2.231 3.590 Pikes Peak State Park Iowa 76 in McGregor 01936-01-011936 02003-01-012003 Park access road
Iowa 342 0.9 1.4 Iowa 141 near Jamaica Jamaica 01936-01-011936 01980-01-011980 Spur route
Iowa 343 1.0 1.6 Iowa 333 near Northboro Northboro 01937-01-011937 01980-01-011980 Spur route
Iowa 346 12.470 20.069 US 218 / Iowa 27 at Nashua US 18 / US 63 near New Hampton 01937-01-011937 current
Iowa 347 0.8 1.3 Locust Street at Omaha, Neb. Locust Street at Omaha, Neb. 01937-01-011937 01986-01-011986
Iowa 349 1.032 1.661 Lake Ahquabi State Park US 65 / US 69 near Indianola 01938-01-011938 02003-01-012003 Park access road
Iowa 353 0.4 0.6 Rowan Iowa 3 at Rowan 01938-01-011938 01980-01-011980 Spur route
Iowa 356 0.949 1.527 Milford West Okoboji 02000-01-012000 02003-01-012003 Former section of US 71
Iowa 358 1.5 2.4 Whittemore US 18 / Iowa 15 near Whittemore 01938-01-011938 01980-01-011980 Spur route
Iowa 359 7.383 11.882 Buckeye Iowa 941 in Alden 01938-01-011938 02003-01-012003 Spur route
Iowa 362 1.1 1.8 Macedonia US 59 near Macedonia 01938-01-011938 01980-01-011980 Spur route
Iowa 362 5.469 8.802 DeSoto National Wildlife Refuge I-29 at Loveland 01980-01-011980 02003-01-012003 Park access road
Iowa 363 1.616 2.601 Iowa 150 near Urbana I-380 / Iowa 27 in Urbana 01939-01-011939 02003-01-012003 Spur route; number approved 1938
Iowa 364 6.140 9.881 Iowa 76 near Waukon Junction Harpers Ferry 01938-01-011938 02003-01-012003 Spur route
Iowa 365 1.1 1.8 Tracy Iowa 92 near Tracy 01939-01-011939 01980-01-011980 Spur route
Iowa 367 3.4 5.5 Rutland US 169 near Humboldt 01942-01-011942 01980-01-011980 Spur route
Iowa 369 5.6 9.0 Iowa 2 near Moulton Unionville 01942-01-011942 01980-01-011980 Spur route
Iowa 370 3.265 5.255 N-370 at Bellevue, Neb. I-29 / US 275 near Council Bluffs 01953-01-011953 02014-01-012014
Iowa 371 0.715 1.151 Lake Keomah State Park Iowa 92 near Keomah Village 01939-01-011939 02003-01-012003 Park access road
Iowa 374 8.0 12.9 US 71 near Sioux Rapids Webb 01942-01-011942 01980-01-011980 Spur route
Iowa 376 10.334 16.631 I-129 / US 20 / US 75 at Sioux City US 75 at Sioux City 02001-01-012001 current US 75 Business in Sioux City
Iowa 377 0.5 0.8 Harbor Drive in Sioux City US 75 in Sergeant Bluff 01942-01-011942 01980-01-011980 Airport access road; one unsigned section was maintained until 2003
Iowa 379 4.6 7.4 Joice Iowa 105 near Lake Mills 01942-01-011942 01980-01-011980 Spur route
Iowa 381 0.7 1.1 Iowa 254 near Rake Rake 01954-01-011954 01980-01-011980 Spur route
Iowa 382 4.792 7.712 Lake MacBride State Park Iowa 1 in Solon 01943-01-011943 02003-01-012003 Park access road
Iowa 383 1.311 2.110 US 69 near Randall Randall 01944-01-011944 02003-01-012003 Spur route
Iowa 384 1.231 1.981 Iowa 25 in Guthrie County Springbrook State Park 01944-01-011944 02003-01-012003 Park access road
Iowa 385 3.151 5.071 Pacific Junction US 34 / US 275 in Glenwood 01945-01-011945 02003-01-012003 Spur route
Iowa 386 2.685 4.321 US 52 / Iowa 3 near Sageville US 52 / Iowa 3 / Iowa 32 near Dubuque 01946-01-011946 02003-01-012003  
Iowa 387 1 2 Davenport Municipal Airport US 61 3 miles north of Davenport 01951-01-011951 01979-01-011979 Spur route
Iowa 388 0.3 0.5 Calumet US 59 at Calumet 01946-01-011946 01980-01-011980 Spur route
Iowa 390 2.113 3.401 South of Plainfield North of Plainfield 02003-01-012003 Former section of US 218
Iowa 393 2.3 3.7 Ionia US 18 near Ionia 01948-01-011948 01980-01-011980 Spur route
Iowa 394 1.9 3.1 Iowa 2 near Denmark Iowa Army Ammunition Plant southern entrance 01948-01-011948 01980-01-011980 Spur route
Iowa 394 10.454 16.824 Route B at St. Francisville, Mo. US 218 near Donnellson 01980-01-011980 02005-01-012005 Replaced by Iowa 27
Iowa 396 0.7 1.1 Iowa 175 near Farnhamville Farnhamville 01954-01-011954 01980-01-011980 Spur route
Iowa 398 1.1 1.8 Brooklyn US 6 near Brooklyn 01956-01-011956 01980-01-011980 Spur route
Iowa 400 4.5 7.2 Truro I-35 near Truro 01957-01-011957 01980-01-011980 Spur route; not completed until 1958
Iowa 402 20.9 33.6 Iowa 8 near Dysart Iowa 412 in Waterloo 01957-01-011957 01968-12-311968 Replaced by Iowa 21
Iowa 403 0.7 1.1 Cushing US 20 near Cushing 01958-01-011958 01980-01-011980 Spur route
Iowa 403 0.477 0.768 SD 48 near Akron Iowa 12 in Akron 01980-01-011980 02003-01-012003  
Iowa 404 1.4 2.3 Montrose US 61 near Montrose 01980-01-011980 02003-01-012003 Spur route
Iowa 404 1.629 2.622 Iowa 3 in Le Mars US 75 at Le Mars 02006-01-012006 current Section of US 75 Business in Le Mars
Iowa 405 0.249 0.401 Lone Tree Iowa 22 near Lone Tree 01958-01-011958 02003-01-012003 Spur route
Iowa 406 2.275 3.661 US 34 near West Burlington Burlington 01957-01-011957 02003-01-012003 Spur route
Iowa 407 0.5 0.8 Iowa 99 in Oakville Oakville 01957-01-011957 01967-01-011967 Former Iowa 7; spur route
Iowa 408 7.3 11.7 US 169 near Lu Verne Lu Verne 01957-01-011957 01980-01-011980 Spur route
Iowa 410 2.157 3.471 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 01958-01-011958 02003-01-012003 Park access road
Iowa 411 1.5 2.4 US 6 at Marengo CR F15 north of Marengo 01957-01-011957 01966-01-011966 Spur route
Iowa 412 4.6 7.4 US 63 in Waterloo US 218 in Waterloo 01960-01-011960 01983-01-011983 Former US 20
Iowa 413 7.9 12.7 US 20 in Fort Dodge Iowa 320 near Badger 01960-01-011960 01980-01-011980 Spur route
Iowa 415 16.857 27.129 US 6 in Des Moines Iowa 141 near Granger 01959-01-011959 current
Iowa 417 9 14 US 67 near Riverdale US 67 near LeClaire 01960-01-011960 01969-01-011969 Former section of US 67
Iowa 419 1.038 1.670 Victor US 6 / Iowa 21 near Victor 01962-01-011962 02003-01-012003 Spur route
Iowa 424 0.8 1.3 Iowa 111 in Britt US 18 near Britt 01961-01-011961 01980-01-011980 Spur route
Iowa 424 2.802 4.509 South of Swedesburg US 218 near Olds 01999-01-011999 02003-01-012003 Former section of US 218
Iowa 428 Anamosa US 151 near Anamosa 01965-01-011965 01980-01-011980 Spur route
Iowa 428 6.140 9.881 Maquoketa Caves State Park US 61 near Maquoketa 01980-01-011980 02003-01-012003 Park access road
Iowa 438 1.052 1.693 US 34 / Iowa 163 at Mount Pleasant US 218 / Iowa 27 at Mount Pleasant 02003-01-012003 current Section of US 218 Business in Mount Pleasant
Iowa 461 10.750 17.300 I-280 / US 61 at Davenport I-80 / US 61 at Davenport 02010-01-012010 current US 61 Business in Davenport
Iowa 471 11.160 17.960 Iowa 175 near Lake View US 20 / US 71 near Early 02015-01-012015 current Former US 71 in Sac County
Iowa 478 0.755 1.215 Iowa 24 in New Hampton North of New Hampton 02002-01-012002 02003-01-012003 Former section of US 63
Iowa 904 4.737 7.623 US 34 / Iowa 163 west of Fairfield US 34 / Iowa 163 east of Fairfield 02008-01-012008 02011-01-012011 US 34 Business at Fairfield, did not count mileage within Fairfield city limits
Iowa 906 4.009 6.452 Iowa 192 in Council Bluffs I-80 / US 6 near Council Bluffs 02016-01-012016 current Former US 6 through Council Bluffs
Iowa 916 1.293 2.081 Iowa 281 in Oelwein Oelwein 01986-01-011986 02003-01-012003 Former section of Iowa 150
Iowa 920 12.560 20.213 Center Point Iowa 150 near Urbana 01984-01-011984 02003-01-012003 Former section of Iowa 150
Iowa 922 8.862 14.262 US 151 at Cedar Rapids Iowa 100 in Cedar Rapids 01985-01-011985 current US 151 Business in Cedar Rapids
Iowa 925 26.259 42.260 I-80 / US 6 in Adair US 6 near Dexter 01981-01-011981 02003-01-012003 Former section of US 6
Iowa 926 3.147 5.065 US 169 / US 20 Bus at Fort Dodge US 169 at Fort Dodge 01990-01-011990 02014-01-012014
Iowa 927 19.017 30.605 US 6 / Iowa 38 in Wilton I-280 / US 6 near Davenport 01981-01-011981 02003-01-012003 Former section of US 6
Iowa 928 20.168 32.457 Iowa 17 near Webster City CR D20 near Williams 01980-01-011980 02003-01-012003 Former section of US 20
Iowa 929 0.789 1.270 Murray city limits Maple Street in Murray 01980-01-011980 02003-01-012003 Former section of Iowa 152
Iowa 930 1.738 2.797 US 30 near Ames BooneStory county line 01972-01-011972 current Unsigned highway
Iowa 931 8.962 14.423 I-35 in Ankeny US 65 in Polk County 01980-01-011980 02003-01-012003  
Iowa 934 4.881 7.855 Iowa 58 in Cedar Falls US 63 in Waterloo 01998-01-011998 02016-01-012016 Was an unsigned highway
Iowa 939 18.931 30.466 Iowa 187 near Masonville Black HawkBuchanan county line 01980-01-011980 02003-01-012003 Former section of US 20
Iowa 940 0.081 0.130 TamaBenton county line near Belle Plaine Iowa 21 near Belle Plaine 01981-01-011981 02003-01-012003
Iowa 941 12.953 20.846 I-35 near Williams Iowa Falls city limits 01991-01-011991 02003-01-012003 Former section of US 20
Iowa 942 0.466 0.750 Vine Street in Woodburn Woodburn city limits 01980-01-011980 02003-01-012003 Former section of Iowa 104
Iowa 944 0.553 0.890 US 61 / Iowa 2 in Fort Madison Fort Madison city limits 01980-01-011980 02003-01-012003 Former section of Iowa 88
Iowa 945 4.599 7.401 I-80 near Altoona Iowa 931 in Polk County 01980-01-011980 02003-01-012003
Iowa 946 0.927 1.492 US 52 / US 61 / US 151 in Dubuque US 52 / US 61 / US 151 in Dubuque 01991-01-011991 current Provides direct access between US 20 and US 52 / US 61 / US 151
Iowa 949 2.275 3.661 Glenwood city limits US 34 / US 275 near Glenwood 01974-01-011974 02003-02-182003 Former US 34 Business
Iowa 952 0.112 0.180 US 151 near Cascade Reiter Road near Cascade 01992-01-011992 02003-01-012003 Former section of US 151
Iowa 954 0.773 1.244 US 61 near Maquoketa Maquoketa city limits 01967-01-011967 02003-01-012003 Former section of US 61
Iowa 955 0.727 1.170 US 61 near Key West Military Road in Key West 01976-01-011976 02003-01-012003 Former section of US 61
Iowa 956 16.776 26.998 CR F55 at Davenport US 61 north of DeWitt 01976-01-011976 02003-01-012003 Former section of US 61
Iowa 961 3.613 5.815 Iowa 2 in Fort Madison US 61 at Fort Madison 02011-01-012011 02013-01-012013 Section of US 61 Business in Fort Madison
Iowa 963 4.139 6.661 US 151 near Key West US 61 / US 151 in Dubuque 01971-01-011971 02003-01-012003 Former section of US 151 and US 61
Iowa 965 0.519 0.835 US 6 in Coralville I-80 in Coralville 01985-01-011985 current
Iowa 967 0.037 0.060 US 20 near Farley Farley city limits 01976-01-011976 02003-01-012003 Former section of US 20
Iowa 977 2.007 3.230 US 59 in Cherokee Iowa 3 near Cherokee 01964-01-011964 02003-01-012003  
Iowa 978 2.772 4.461 I-29 / US 34 near Glenwood Iowa 385 near Pacific Junction 01974-01-011974 02003-02-182003 Former section of US 34
Iowa 982 27.787 44.719 Smithland city limits Sioux City city limits 01961-01-011961 02003-01-012003 Former section of Iowa 141
Iowa 985 1.927 3.101 US 52 near Bellevue State Park US 52 near Bellevue 01980-01-011980 02003-01-012003 Park access road
Iowa 988 2.312 3.721 I-29 / I-680 near Crescent Iowa 183 in Crescent 01975-01-011975 02003-01-012003  
  •       Former

ReferencesEdit

  1. ^ "2012 Volume of Traffic on the Primary Road System of Iowa" (PDF). Iowa Department of Transportation. January 1, 2012. Retrieved November 6, 2013.
  2. ^ a b c d e f g h "U.S. Road Markers Soon to Replace Familiar Primary Road Signs on U.S. System in Iowa". Service Bulletin Oct–Nov–Dec 1925. Iowa State Highway Commission. XIII (10–11–12): 3. 1925.