14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cullman | 1 | 20,683 | 18,461 | 2.19% | 911 | 23 | City |
| Hanceville | 2 | 3,379 | 3,212 | 0.99% | 767 | 4 | City |
| Good Hope | 3 | 2,682 | 2,499 | 1.36% | 340 | 8 | City |
| Holly Pond | 4 | 875 | 848 | 0.57% | 224 | 4 | Town |
| Baileyton | 5 | 699 | 653 | 1.3% | 133 | 5 | Town |
| West Point | 6 | 660 | 629 | 0.92% | 172 | 4 | Town |
| South Vinemont | 7 | 626 | 563 | 1.95% | 691 | 1 | Town |
| Dodge City | 8 | 568 | 545 | 0.71% | 162 | 4 | Town |
| Garden City | 9 | 545 | 529 | 0.55% | 241 | 2 | Town |
| Fairview | 10 | 543 | 526 | 0.56% | 277 | 2 | Town |
| Berlin | 11 | 537 | 504 | 1.13% | 380 | 1 | Town |
| Joppa | 12 | 472 | 636 | 7.03% | 243 | 2 | CDP |
| East Point | 13 | 374 | 363 | 3.31% | 406 | 1 | CDP |
| Colony | 14 | 278 | 265 | 0.72% | 129 | 2 | Town |
Cullman is the largest city in Cullman County, with a population of 20,683.
Colony is the smallest city in Cullman County, with a population of 278.
There are 14 cities in Cullman County, Alabama.