Decaturville
- County:
- Decatur County
- County Seat:
- Yes
- Area (mi²):
- 1.652
- State:
- Tennessee
Decaturville is a town located in Decatur County, Tennessee. Decaturville has a 2026 population of 816. It is also the county seat of Decatur County. Decaturville is currently growing at a rate of 0.37% annually and its population has increased by 1.49% since the most recent census, which recorded a population of 804 in 2020.