Following U.S. independence in 1783, which made the Mississippi River the national boundary, American settlers began arriving from Kentucky via the Ohio River. Illinois was soon part of the United States' oldest territory, the Northwest Territory, and in 1818, it achieved statehood.

Welcome to Illinois.gov! Find places to go, things to see. Search through all the different services offered by the various Illinois agencies.

U.S. Census Bureau Delivers Illinois' 2010 Census Population Totals, Including First Look at Race and Hispanic Origin Data for Legislative Redistricting (англ.).

Your guide to the best of Illinois. Places to go, things to do, the best places to eat and drink, must-see Chicago, trip ideas and inspiration for your Illinois vacation.

Geographical and historical treatment of Illinois, including maps and a survey of its people, economy, and government. Its capital city is Springfield, and its largest city and most important cultural and economic center is Chicago.

Illinois, a state in the Midwestern United States, shares its borders with Wisconsin to the north, Indiana to the east, and the Mississippi River forms its western border with Iowa and Missouri.

Discover the University of Illinois Urbana-Champaign—where innovation, community, and discovery drive world-class learning, research, and public impact.

Facts about Illinois, including the capital, number of electoral votes, state symbols, popular tourist attractions, iconic local foods, famous people, sports teams, fun facts, and more.

General Map of Illinois, United States. The detailed map shows the US state of Illinois with boundaries, the location of the state capital Springfield, major cities and populated places, rivers and lakes, interstate highways, principal highways, and railroads.

Discover the best of Illinois from iconic Chicago to scenic state parks, historic Route 66 stops and charming small towns. Plan your perfect Illinois getaway!