Illinois Seal

Illinois Geography and Economy

Area 149,998 km² Residents 12,801,539 Residents per km² 85.3 Capital Springfield Postal Code IL ISO-3166-2 code US IL FIPS code 17th Abbreviated as IL by AbbreviationFinder, Illinois is a US state. It is located in the midwest and borders Lake Michigan in the northeast. The name comes from the Algonquin language and French and denotes […]