15 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hillsboro | 1 | 9,049 | 8,194 | 1.93% | 833 | 11 | City |
| Whitney | 2 | 2,155 | 1,997 | 1.46% | 1,159 | 2 | Town |
| Itasca | 3 | 1,962 | 1,575 | 4.08% | 1,582 | 1 | City |
| Hubbard | 4 | 1,502 | 1,392 | 1.49% | 768 | 2 | City |
| Gholson | 5 | 1,240 | 1,194 | 0.73% | 148 | 8 | City |
| Blum | 6 | 414 | 383 | 1.47% | 419 | 1 | Town |
| Abbott | 7 | 374 | 353 | 1.08% | 632 | 1 | City |
| Mount Calm | 8 | 327 | 285 | 2.51% | 397 | 1 | City |
| Covington | 9 | 308 | 263 | 3.01% | 375 | 1 | City |
| Malone | 10 | 253 | 236 | 1.2% | 554 | 0 | Town |
| Carl's Corner | 11 | 233 | 203 | 2.64% | 74 | 3 | Town |
| Penelope | 12 | 191 | 180 | 1.06% | 193 | 1 | Town |
| Bynum | 13 | 181 | 170 | 1.12% | 1,351 | 0 | Town |
| Mertens | 14 | 158 | 146 | 1.28% | 363 | 0 | Town |
| Aquilla | 15 | 114 | 104 | 1.79% | 404 | 0 | City |
Hillsboro is the largest city in Hill County, with a population of 9,049.
Aquilla is the smallest city in Hill County, with a population of 114.
There are 15 cities in Hill County, Texas.