The following outline is provided as an overview of and topical guide to the U.S. state of Illinois:

The location of the state of Illinois in the United States of America

Illinoisfifth most populous of the 50 states of the United States of America. Illinois lies between Lake Michigan and the Mississippi River and the Ohio River in the Midwestern United States. Chicago, Illinois, is the third most populous city and the third most populous metropolitan area of the United States. The United States created the Illinois Territory on March 1, 1809. Illinois joined the Union as the 21st state on December 3, 1818.

General reference

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An enlargeable map of the state of Illinois

Geography of Illinois

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Geography of Illinois

Places in Illinois

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Environment of Illinois

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Natural geographic features of Illinois

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Regions of Illinois

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Regions of Illinois

Administrative divisions of Illinois

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An enlargeable map of the 102 counties of the state of Illinois

Demography of Illinois

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Demographics of Illinois

Government and politics of Illinois

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Politics of Illinois

Branches of the government of Illinois

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Government of Illinois

Executive branch of the government of Illinois

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Legislative branch of the government of Illinois

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Judicial branch of the government of Illinois

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Courts of Illinois

Law and order in Illinois

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Law of Illinois

Military in Illinois

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History of Illinois

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History of Illinois

History of Illinois, by period

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The location of the state of Illinois in the United States of America
 
An enlargeable map of the 102 counties of the state of Illinois

History of Illinois, by region

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History of Illinois, by subject

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Culture of Illinois

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Culture of Illinois

The Arts in Illinois

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Sports in Illinois

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Sports in Illinois

Economy and infrastructure of Illinois

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Economy of Illinois

Education in Illinois

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Education in Illinois

See also

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References

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  1. ^ a b c d e f Introduction to Illinois, 50 States, retrieved April 24, 2009.
  2. ^ "U.S. Census Bureau State & County QuickFacts Illinois". Archived from the original on 2009-04-01. Retrieved 2011-11-18.
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  Wikimedia Atlas of Illinois