Lee County
Also known as Lee County, Illinois, Lee County, IL
county in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Founded
- February 27, 1839
- Named after
- Henry Lee III
- Seat
- Dixon
- Largest city
- Dixon
- Total
- 729 sq mi (1,890 km )
- Land
- 725 sq mi (1,880 km )
- Water
- 4.1 sq mi (11 km ) 0.6%
- Estimate 2025
- 32,914
- Density
- 47.1/sq mi (18.2/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
Article
Lee County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 34,145. Its county seat is Dixon. The Dixon, IL Micropolitan Statistical Area includes all of Lee County.
History