Montgomery County
Also known as Montgomery County, Illinois, Montgomery County, IL
county in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Named after
- Richard Montgomery
- Seat
- Hillsboro
- Largest city
- Litchfield
- Total
- 710 sq mi (1,800 km )
- Land
- 704 sq mi (1,820 km )
- Water
- 6.0 sq mi (16 km ) 0.8%
- Estimate 2025
- 28,076
- Density
- 40.2/sq mi (15.5/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
~6 min read
Article
Montgomery County is a county located in the U.S. state of Illinois. According to the 2020 United States census, it had a population of 28,288. Its county seat is Hillsboro.
History