Johnson City
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 43.788
- State:
- Tennessee
Johnson City is a city located in Washington County, Tennessee. Johnson City has a 2026 population of 73,635. Johnson City is currently growing at a rate of 0.26% annually and its population has increased by 3.53% since the most recent census, which recorded a population of 71,121 in 2020.