My personal sandbox.

1910 edit

Rank City Region Population Notes
1 Louisville Central 223,928
2 Covington Northern 53,270
3 Lexington Central 35,099
4 Newport Northern 30,309
5 Paducah Western 22,760
6 Owensboro Western 16,011
8 Henderson Western 11,452
7 Frankfort Central 10,465
9 Hopkinsville Western 9,419
10 Bowling Green Western 9,173

1920 edit

Rank City Region Population Notes
1 Louisville Central 234,891
2 Covington Northern 57,121
3 Lexington Central 41,534
4 Newport Northern 29,317
5 Paducah Western 24,735
6 Owensboro Western 17,424
7 Ashland Eastern 14,729
8 Henderson Western 12,169
9 Hopkinsville Western 9,696
10 Bowling Green Western 9,638

1930 edit

Rank City Region Population Notes
1 Louisville Central 307,745
2 Covington Northern 65,252
2 Lexington Central 45,736
4 Paducah Western 33,541
5 Newport Northern 29,744
6 Ashland Eastern 29,074
7 Owensboro Western 22,765
8 Bowling Green Western 12,348
9 Henderson Western 11,668
10 Middlesboro Eastern 10,350

1940 edit

Rank City Region Population Notes
1 Louisville Central 319,077
2 Covington Northern 62,018
3 Lexington Central 49,304
4 Paducah Western 33,765
5 Newport Northern 30,631
6 Owensboro Western 30,245
7 Ashland Eastern 29,537
8 Bowling Green Western 14,385
9 Henderson Western 13,160
10 Middlesboro Eastern 11,777

1950 edit

Rank City Region Population Notes
1 Louisville Central 369,129
2 Covington Northern 64,452
3 Lexington Central 55,534
4 Owensboro Western 33,651
5 Paducah Western 32,828
6 Ashland Eastern 31,131
7 Newport Northern 31,044
8 Bowling Green Western 18,347
9 Henderson Western 16,837
10 Middlesboro Eastern 14,482

1960 edit

Rank City Region Population Notes
1 Louisville Central 390,639
2 Lexington Central 62,810
3 Covington Northern 60,376
4 Owensboro Western 42,471
5 Paducah Western 34,479
6 Ashland Eastern 31,283
7 Newport Northern 30,070
8 Bowling Green Western 28,338
9 Hopkinsville Western 19,465
10 Frankfort Central 18,365

1970 edit

Rank City Region Population Notes
1 Louisville Central 361,472
2 Lexington Central 108,137
3 Covington Northern 52,535
4 Owensboro Western 50,329
5 Bowling Green Western 36,705
6 Paducah Western 31,627
7 Ashland Eastern 29,245
8 Newport Northern 25,998
9 Henderson Western 22,976
10 Frankfort Central 21,902

1980 edit

Rank City Region Population Notes
1 Louisville Central 298,451
2 Lexington Central 204,165
3 Owensboro Western 54,450
4 Covington Northern 49,585
5 Bowling Green Western 40,450
6 Paducah Western 29,315
7 Hopkinsville Western 27,318
8 Ashland Eastern 27,064
9 Frankfort Central 25,973
10 Henderson Western 24,834

1990 edit

Rank City Region Population Notes
1 Louisville Central 269,063
2 Lexington Central 225,366
3 Owensboro Western 53,549
5 Covington Northern 43,264
6 Bowling Green Western 40,641
7 Hopkinsville Western 29,809
8 Paducah Western 27,256
7 Frankfort Central 25,968
9 Henderson Western 25,945
10 Ashland Eastern 23,622

2000 edit

Rank City Region Population Notes
1 Lexington Central 260,512 Lexington becomes the largest city in the state for the first time.
2 Louisville Central 256,231
3 Owensboro Western 54,067
4 Bowling Green Western 49,296
5 Covington Northern 43,370
6 Hopkinsville Western 30,089
7 Frankfort Central 27,741
8 Henderson Western 27,373
9 Richmond Central 27,152
10 Jeffersontown Central 26,633

2010 edit

Rank City Region Population Notes
1 Louisville Central 597,337
2 Lexington Central 295,803
3 Bowling Green Western 58,067
4 Owensboro Western 57,265
5 Covington Northern 40,640
6 Hopkinsville Western 31,577
7 Richmond Central 31,364
8 Florence Northern 29,951
9 Georgetown Central 29,098
10 Henderson Central 28,757