5 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Livingston | 1 | 5,478 | 5,730 | -0.76% | 627 | 9 | Town |
| Onalaska | 2 | 3,510 | 3,081 | 2.09% | 646 | 5 | City |
| Corrigan | 3 | 1,366 | 1,471 | -1.23% | 595 | 2 | Town |
| Goodrich | 4 | 290 | 250 | 2.47% | 411 | 1 | City |
| Seven Oaks | 5 | 78 | 68 | 2.63% | 56 | 1 | City |
Livingston is the largest city in Polk County, with a population of 5,478.
Seven Oaks is the smallest city in Polk County, with a population of 78.
There are 5 cities in Polk County, Texas.