Magnolia
- County:
- Columbia County
- County Seat:
- Yes
- Area (mi²):
- 13.231
- State:
- Arkansas
Magnolia is a city located in Columbia County, Arkansas. Magnolia has a 2026 population of 10,759. It is also the county seat of Columbia County. Magnolia is currently declining at a rate of -0.63% annually and its population has decreased by -3.39% since the most recent census, which recorded a population of 11,137 in 2020.