
Cosby
- County:
- Cocke County
- County Seat:
- No
- Area (mi²):
- 5.533
- State:
- Tennessee
Cosby is a CDP located in Cocke County, Tennessee. Cosby has a 2025 population of 790. Cosby is currently growing at a rate of 7.19% annually and its population has increased by 9.27% since the most recent census, which recorded a population of 723 in 2020.
The average household income in Cosby is $49,168 with a poverty rate of 28.79%. The median age in Cosby is 55.8 years: 56 years for males, and 55.8 years for females.