Champaign County
Sign in to savecounty in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Region
- Central Illinois
- Metro area
- Champaign–Urbana Metropolitan
- Incorporated
- February 20, 1833
- County seat
- Urbana
- Largest city
- Champaign
- Total
- 998 sq mi (2,580 km )
- Land
- 996 sq mi (2,580 km )
- Water
- 2.1 sq mi (5.4 km )
- Rank
- 5th largest county in Illinois
- Estimate 2025
- 209,972
- Density
- 207/sq mi (79.8/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( Central )
- Zip code prefixes
- 60949, 61801, 61802, 61815, 61816, 61820-61822, 61840, 61843, 61845, 61847, 61849, 61851-61853, 61859, 61862-61864, 61866, 61871-61875, 61877, 61878, 61880
- Area codes
- 217 / 447
- Congressional district
- 2nd , 13th , 15th
via Wikipedia infobox
Article
Champaign County is a county in the U.S. state of Illinois. As of the 2020 Census, its population was 205,865, making it the 10th-most populous county in Illinois. Its county seat is Urbana.
Champaign County is part of the Champaign–Urbana metropolitan area. The twin cities of Urbana and Champaign are the only cities in the county, and they nearly surround the campus of the University of Illinois.