Illinois Quiz
Illinois is in the Midwest. Quick facts below — then test yourself with 5 questions.
| Capital | Springfield |
|---|---|
| Postal abbreviation | IL |
| Nickname | The Prairie State |
| Census region | Midwest |
| Bordering states | Wisconsin, Iowa, Missouri, Kentucky, Indiana |
| Statehood | 1818 |
| Population (2020 Census) | 12,812,508 |
| Total area (sq mi) | 57,914 |
Sample questions
Q1In which year did Illinois become a state?
Show answer
1818
Illinois became the 21st state in 1818, the third state formed from the Northwest Territory after Ohio and Indiana.
Q2Which state is smaller than Illinois by area?
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New Hampshire
Illinois covers 57,914 square miles, making it the No.25 largest state by total area.
Q3What is the postal abbreviation of Illinois?
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IL
The postal abbreviation of Illinois is IL.