Cooper County
Also known as Cooper County, Missouri, Cooper County, MO
county in Missouri, United States
Key facts
- Country
- United States
- State
- Missouri
- Founded
- December 17, 1818
- Named after
- Sarshell Cooper
- Seat
- Boonville
- Largest city
- Boonville
- Total
- 569 sq mi (1,470 km )
- Land
- 565 sq mi (1,460 km )
- Water
- 4.4 sq mi (11 km ) 0.8%
- Estimate 2025
- 17,136
- Density
- 30.3/sq mi (11.7/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
Article
Cooper County is located in the central portion of the U.S. state of Missouri. As of the 2020 United States census, the population was 17,103. Its county seat is Boonville. The county was organized December 17, 1818, and named for Sarshell Cooper, a frontier settler who was killed by Native Americans near Arrow Rock in 1814. It is a part of the Columbia, Missouri metropolitan area.
Geography