14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Frederick | 1 | 3,327 | 3,480 | -0.86% | 673 | 5 | City |
| Frederick | 2 | 3,327 | 3,471 | -0.86% | 673 | 5 | City |
| Grandfield | 3 | 875 | 914 | -0.91% | 1,049 | 1 | City |
| Grandfield | 4 | 875 | 912 | -0.91% | 1,049 | 1 | City |
| Tipton | 5 | 825 | 862 | -0.84% | 705 | 1 | Town |
| Tipton | 6 | 825 | 859 | -0.84% | 705 | 1 | Town |
| Davidson | 7 | 234 | 242 | -0.85% | 486 | 0 | Town |
| Davidson | 8 | 234 | 241 | -0.85% | 486 | 0 | Town |
| Manitou | 9 | 167 | 171 | -0.6% | 532 | 0 | Town |
| Manitou | 10 | 167 | 171 | -0.6% | 532 | 0 | Town |
| Hollister | 11 | 33 | 35 | -2.94% | 123 | 0 | Town |
| Hollister | 12 | 33 | 35 | -2.94% | 123 | 0 | Town |
| Loveland | 13 | 13 | 15 | -7.14% | 58 | 0 | Town |
| Loveland | 14 | 13 | 15 | -7.14% | 58 | 0 | Town |
Frederick is the largest city in Tillman County, with a population of 3,327.
Loveland is the smallest city in Tillman County, with a population of 13.
There are 14 cities in Tillman County, Oklahoma.