5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Livingston | 1 | 5,520 | 5,730 | -0.76% | 632 | 9 | Town |
| Onalaska | 2 | 3,438 | 3,081 | 2.11% | 632 | 5 | City |
| Corrigan | 3 | 1,383 | 1,471 | -1.28% | 602 | 2 | Town |
| Goodrich | 4 | 283 | 250 | 2.17% | 401 | 1 | City |
| Seven Oaks | 5 | 76 | 68 | 1.33% | 54 | 1 | City |
Livingston is the largest city in Polk County, with a population of 5,520.
Seven Oaks is the smallest city in Polk County, with a population of 76.
There are 5 cities in Polk County, Texas.