Illinois: The history and demographics of the Prairie State Learn more about Illinois and its geography, people, economy, and history. Illinois, constituent state of the United States of America. It stretches southward 385 miles (620 km) from the Wisconsin border in the north to Cairo in the south. From urban excitement and outdoor adventures to delicious food and fascinating history, Illinois is an iconic destination with something for everyone. Scroll through the regions to explore the diversity of experiences in the Middle of Everything. Get outdoors and explore! What does the abbreviation IL stand for? Meaning: Illinois. How to use IL in a sentence. Search through all the different services offered by the various Illinois agencies. During live broadcasts use the links below to tune in to audio and video feeds for the latest coverage from the State of Illinois. Indian tribes and resources for Native Americans. Federal, state, territory, county, and municipal courts. Lobbyist Information Search Find lobbyists and lobbying groups registered in Illinois. Statement of Economic Interest Search Access statements filed by state employees and elected officials. Inspector General’s Office File a complaint, review statistical and published reports, and more. The.il top-level domain is one of the earliest registered ccTLDs. When Israel registered it, on 24 October 1985, [3] it was the third registration of any ccTLD, after.us [5] and.uk, [6] which were registered earlier that year. 2.3.2State of Illinois prior to the Civil War. 2.3.3Civil War and after. 2.420th century. Illinois has been nicknamed as “The Prairie State” in reference to the landscape of rolling hills and prairies that occupy large areas of the state. Physical map of Illinois showing major cities, terrain, national parks, rivers, and surrounding countries with international borders and outline maps. Key facts about Illinois. Governor JB Pritzker and the Illinois Department of Revenue (IDOR) have announced disaster tax relief for individuals and businesses in 15 counties impacted by severe storms in May through August 2026.