15 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hillsboro | 1 | 9,220 | 8,194 | 1.89% | 839 | 11 | City |
| Whitney | 2 | 2,187 | 1,997 | 1.48% | 1,176 | 2 | Town |
| Itasca | 3 | 2,040 | 1,575 | 3.98% | 1,304 | 2 | City |
| Hubbard | 4 | 1,524 | 1,392 | 1.46% | 779 | 2 | City |
| Gholson | 5 | 1,249 | 1,194 | 0.73% | 149 | 8 | City |
| Blum | 6 | 420 | 383 | 1.45% | 425 | 1 | Town |
| Abbott | 7 | 378 | 353 | 1.07% | 639 | 1 | City |
| Mount Calm | 8 | 336 | 285 | 2.75% | 408 | 1 | City |
| Covington | 9 | 317 | 263 | 2.92% | 386 | 1 | City |
| Malone | 10 | 257 | 236 | 1.58% | 562 | 0 | Town |
| Carl's Corner | 11 | 239 | 203 | 2.58% | 76 | 3 | Town |
| Penelope | 12 | 193 | 180 | 1.05% | 195 | 1 | Town |
| Bynum | 13 | 183 | 170 | 1.1% | 1,366 | 0 | Town |
| Mertens | 14 | 161 | 146 | 1.9% | 370 | 0 | Town |
| Aquilla | 15 | 116 | 104 | 1.75% | 411 | 0 | City |
Hillsboro is the largest city in Hill County, with a population of 9,220.
Aquilla is the smallest city in Hill County, with a population of 116.
There are 15 cities in Hill County, Texas.