10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| West Livingston | 1 | 7,431 | 7,873 | -0.58% | 313 | 23.77 | CDP |
| Livingston | 2 | 5,758 | 5,730 | 0.1% | 660 | 8.73 | Town |
| Onalaska | 3 | 3,317 | 3,084 | 1.44% | 610 | 5.44 | City |
| Corrigan | 4 | 1,409 | 1,473 | -0.91% | 614 | 2.30 | Town |
| Pleasant Hill | 5 | 1,088 | 771 | 3.62% | 411 | 2.65 | CDP |
| Indian Springs | 6 | 890 | 699 | 0.79% | 488 | 1.82 | CDP |
| Big Thicket Lake Estates | 7 | 558 | 611 | -2.11% | 239 | 2.34 | CDP |
| Goodrich | 8 | 296 | 251 | 3.14% | 420 | 0.70 | City |
| Cedar Point | 9 | 219 | 656 | -10.98% | 242 | 0.91 | CDP |
| Seven Oaks | 10 | 77 | 67 | 2.67% | 55 | 1.40 | City |
West Livingston is the largest city in Polk County, with a population of 7,431.
Seven Oaks is the smallest city in Polk County.
There are 10 cities in Polk County, Texas.