2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wellington | 1 | 1,843 | 1,884 | -0.38% | 1,336 | 1 | City |
| Dodson | 2 | 92 | 94 | 0% | 151 | 1 | Town |
Wellington is the largest city in Collingsworth County, with a population of 1,843.
Dodson is the smallest city in Collingsworth County, with a population of 92.
There are 2 cities in Collingsworth County, Texas.