Altamont
- County:
- Grundy County
- County Seat:
- Yes
- Area (mi²):
- 19.824
- State:
- Tennessee
Altamont is a town located in Grundy County, Tennessee. Altamont has a 2026 population of 1,189. It is also the county seat of Grundy County. Altamont is currently growing at a rate of 3.12% annually and its population has increased by 6.07% since the most recent census, which recorded a population of 1,121 in 2020.
The median household income in Altamont is $41,373 with a poverty rate of 15.91%. The median age in Altamont is 47.3 years: 44.9 years for males, and 51 years for females. For every 100 females there are 109.2 males.