8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tuscaloosa | 1 | 116,085 | 104,217 | 2.09% | 1,868 | 62.15 | City |
| Northport | 2 | 31,050 | 31,202 | -0.1% | 1,738 | 17.86 | City |
| Cottondale | 3 | 4,014 | 3,325 | 7.15% | 1,166 | 3.44 | CDP |
| Holt | 4 | 3,672 | 4,358 | 0.05% | 1,161 | 3.16 | CDP |
| Brookwood | 5 | 2,398 | 2,502 | -0.87% | 286 | 8.37 | Town |
| Vance | 6 | 2,351 | 2,131 | 1.91% | 231 | 10.18 | Town |
| Coaling | 7 | 1,954 | 2,034 | -0.81% | 390 | 5.01 | Town |
| Coker | 8 | 867 | 899 | -0.69% | 445 | 1.95 | Town |
Tuscaloosa is the largest city in Tuscaloosa County, with a population of 116,085.
Coker is the smallest city in Tuscaloosa County.
There are 8 cities in Tuscaloosa County, Alabama.