Illinois is a state of United States, with its capital at Springfield.
About Illinois
Illinois is a first-level administrative division of United States.
The capital is Springfield. Population is approximately 12,549,689. It covers roughly 149,995 km².
Languages
Spoken or official languages include English.
ISO code
ISO 3166-2 code: US-IL.
Where to learn more
- See the full United States profile for capital, population, currency, and other administrative divisions.
Find more states by letter
Illinois starts with I and ends with S. Browse other states along the same letter.
States that contain a letter from "Illinois":