Cass County
Also known as Cass County, Illinois, Cass County, IL
county in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Named after
- Lewis Cass
- Seat
- Virginia
- Largest city
- Beardstown
- Total
- 384 sq mi (990 km )
- Land
- 376 sq mi (970 km )
- Water
- 7.9 sq mi (20 km ) 2.1%
- Estimate 2025
- 12,463
- Density
- 34.7/sq mi (13.4/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 15th
Article
Cass County is a county located in the U.S. state of Illinois. As of the 2020 United States census, the population was 13,042. Its county seat is Virginia. It is the home of the Jim Edgar Panther Creek State Fish and Wildlife Area.
History