| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tennessee Ridge | 1 | 1,349 | 1,315 | 0.6% | 360 | 4 | Town |
| Erin | 2 | 1,206 | 1,225 | -0.08% | 310 | 4 | City |
Tennessee Ridge is the largest city in Houston County, with a population of 1,349.
Erin is the smallest city in Houston County, with a population of 1,206.
There are 2 cities in Houston County, Tennessee.