Hamilton County
Also known as Hamilton County, Illinois, Hamilton County, IL
county in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Named after
- Alexander Hamilton
- Seat
- McLeansboro
- Largest city
- McLeansboro
- Total
- 436 sq mi (1,130 km )
- Land
- 435 sq mi (1,130 km )
- Water
- 1.2 sq mi (3.1 km )
- Estimate 2025
- 7,859
- Density
- 18.4/sq mi (7.09/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
Article
Hamilton County is a county located in the U.S. state of Illinois. As of the 2020 census, its population was 7,993. Its county seat is McLeansboro. It is located in the southern portion of the state, known locally as "Little Egypt".
History