Estill Springs
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 4.837
- State:
- Tennessee
Estill Springs is a town located in Franklin County, Tennessee. Estill Springs has a 2026 population of 2,698. Estill Springs is currently declining at a rate of -0.18% annually and its population has decreased by -0.07% since the most recent census, which recorded a population of 2,700 in 2020.