Columbia County
Also known as Columbia County, Arkansas, Columbia County, AR
county in Arkansas, United States
Key facts
- Country
- United States
- State
- Arkansas
- Founded
- December 17, 1852
- Named after
- Columbia
- Seat
- Magnolia
- Largest city
- Magnolia
- Total
- 767 sq mi (1,990 km )
- Land
- 766 sq mi (1,980 km )
- Water
- 0.7 sq mi (1.8 km ) 0.1%
- Estimate 2025
- 21,894
- Density
- 29.8/sq mi (11.5/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
Article
Columbia County is a county located in the U.S. state of Arkansas. As of the 2020 census, the population was 22,801. The county seat is Magnolia. The county was formed on December 17, 1852, and was named for Christopher Columbus. The Magnolia, AR Micropolitan Statistical Area includes all of Columbia County.
Columbia County is home to Southern Arkansas University, which dominates the economic and cultural landscape of the county.