14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cullman | 1 | 20,901 | 18,431 | 2.42% | 921 | 22.70 | City |
| Hanceville | 2 | 3,399 | 3,211 | 1.13% | 771 | 4.41 | City |
| Good Hope | 3 | 2,693 | 2,498 | 1.47% | 342 | 7.88 | City |
| Holly Pond | 4 | 875 | 837 | 0.92% | 224 | 3.91 | Town |
| Baileyton | 5 | 703 | 653 | 1.44% | 134 | 5.25 | Town |
| West Point | 6 | 648 | 628 | 0.62% | 168 | 3.85 | Town |
| South Vinemont | 7 | 638 | 565 | 2.41% | 704 | 0.91 | Town |
| Dodge City | 8 | 576 | 545 | 1.05% | 164 | 3.51 | Town |
| Garden City | 9 | 549 | 528 | 0.73% | 243 | 2.26 | Town |
| Fairview | 10 | 544 | 526 | 0.74% | 277 | 1.96 | Town |
| Berlin | 11 | 537 | 504 | 1.32% | 380 | 1.42 | Town |
| Joppa | 12 | 472 | 636 | 7.03% | 243 | 1.94 | CDP |
| East Point | 13 | 374 | 363 | 3.31% | 406 | 0.92 | CDP |
| Colony | 14 | 282 | 264 | 1.44% | 130 | 2.16 | Town |
Cullman is the largest city in Cullman County, with a population of 20,901.
Colony is the smallest city in Cullman County.
There are 14 cities in Cullman County, Alabama.