Outline of Illinois

Geography of Illinois

Illinois is: a U.S. state, a federal state of the United States of America

Location

Northern hemisphere

Western hemisphere

Americas

North America

Anglo America

Northern America

United States of America

Contiguous United States

Central United States

Corn Belt

East North Central States

Midwestern United States

Great Lakes Region

Population of Illinois: 12,830,632 (2010 U.S. Census)

Area of Illinois: 57,918 square miles (150,010 km²), 25th of the 50 states.

Atlas of Illinois

Places in Illinois

Historic places in Illinois

Ghost towns in Illinois

National Historic Landmarks in Illinois

National Register of Historic Places listings in Illinois

Bridges on the National Register of Historic Places in Illinois

National Natural Landmarks in Illinois

National parks in Illinois

State parks in Illinois

Environment of Illinois

Climate of Illinois

Geology of Illinois

Environment ecoregions of Illinois

Protected areas in Illinois

Nature centers in Illinois

State forests of Illinois

Superfund sites in Illinois

Wildlife of Illinois

Fauna of Illinois

Birds of Illinois

Natural geographic features of Illinois

Lakes of Illinois

Rivers of Illinois

Regions of Illinois

Central Illinois

Eastern Illinois

Northern Illinois

Northwestern Illinois

Southern Illinois

Southeastern Illinois

Forgottonia (Western Illinois)

Administrative divisions of Illinois

The 102 counties of the state of Illinois

Municipalities in Illinois

Cities in Illinois

State capital of Illinois:

City nicknames in Illinois

Towns in Illinois

Unincorporated communities in Illinois

Census-designated places in Illinois

Government and politics of Illinois

Politics of Illinois

Form of government: U.S. state government

United States congressional delegations from Illinois

Illinois State Capitol

Elections in Illinois

Electoral reform in Illinois

Political party strength in Illinois

Executive branch of the government of Illinois

Governor of Illinois

Lieutenant Governor of Illinois

Illinois Secretary of State

Illinois Treasurer

State departments

Illinois Department of Transportation

Legislative branch of the government of Illinois

Illinois General Assembly (bicameral)

Upper house: Illinois Senate

Lower house: Illinois House of Representatives

Judicial branch of the government of Illinois

Supreme Court of Illinois

Law and order in Illinois

Law of Illinois

Cannabis in Illinois

Capital punishment in Illinois

Individuals executed in Illinois

Illinois Constitution

Crime in Illinois

Gun laws in Illinois

Law enforcement in Illinois

Law enforcement agencies in Illinois

Illinois State Police

Same-sex marriage in Illinois

Military in Illinois

Illinois Air National Guard

Illinois Army National Guard

History of Illinois

History of Illinois

History of Illinois, by period

Prehistory of Illinois

Indigenous peoples

Mississippian culture

Cahokia

French colony of Louisiane, 1699–1763; Upper Louisiana was called Illinois Country.

Treaty of Paris of 1763

British (though predominantly Francophone) Province of Quebec, (1763–1783)-1791

American Revolutionary War, April 19, 1775 – September 3, 1783

United States Declaration of Independence, July 4, 1776

Illinois campaign, July 1778 – February 1779

Treaty of Paris, September 3, 1783

Unorganized territory of the United States, 1783–1787

Territory Northwest of the River Ohio, (1787–1800)-1803

Territory of Indiana, (1800–1809)-1816

Territory of Illinois, 1809–1818

Peoria War, 1813

State of Illinois becomes 21st State admitted to the United States of America on December 3, 1818

Black Hawk War, 1832

Abraham Lincoln becomes 16th President of the United States on March 4, 1861

American Civil War, April 12, 1861 – May 13, 1865

Illinois in the American Civil War

Assassination of President Abraham Lincoln in Washington, D.C. on April 14, 1865

President Lincoln dies in Washington, D.C. on April 15, 1865

Ulysses S. Grant becomes 18th President of the United States on March 4, 1869

Ronald Reagan becomes 40th President of the United States on January 20, 1981

History of Illinois, by region

By city

History of Chicago

History of Nauvoo, Illinois

History of Peoria, Illinois

History of Illinois, by subject

Museums in Illinois

Culture of Illinois

Culture of Illinois

Museums in Illinois

Religion in Illinois

Episcopal Diocese of Chicago

Scouting in Illinois

List of Illinois state symbols

Flag of Illinois

Seal of Illinois

The Arts in Illinois

Music of Illinois

Theater in Illinois

Sports in Illinois

Professional sports teams in Illinois

Economy and infrastructure of Illinois

Economy of Illinois

Communications in Illinois

Newspapers in Illinois

Radio stations in Illinois

Television stations in Illinois

Energy in Illinois

Health care in Illinois

Hospitals in Illinois

Transportation in Illinois

Airports in Illinois

Railroads in Illinois

Roads in Illinois

Illinois Routes (State highways)

Interstate Highways in Illinois

Education in Illinois

Schools in Illinois

School districts in Illinois

High schools in Illinois

Colleges and universities in Illinois

University of Illinois system

Illinois State University