12 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cullman | 1 | 21,128 | 18,461 | 2.15% | 923 | 23 | City |
| Hanceville | 2 | 3,413 | 3,212 | 1.01% | 774 | 4 | City |
| Good Hope | 3 | 2,719 | 2,499 | 1.38% | 345 | 8 | City |
| Holly Pond | 4 | 881 | 848 | 0.69% | 225 | 4 | Town |
| Baileyton | 5 | 708 | 653 | 1.29% | 135 | 5 | Town |
| West Point | 6 | 666 | 629 | 0.91% | 173 | 4 | Town |
| South Vinemont | 7 | 639 | 563 | 2.08% | 705 | 1 | Town |
| Dodge City | 8 | 573 | 545 | 0.88% | 163 | 4 | Town |
| Garden City | 9 | 548 | 529 | 0.55% | 243 | 2 | Town |
| Fairview | 10 | 547 | 526 | 0.74% | 279 | 2 | Town |
| Berlin | 11 | 544 | 504 | 1.3% | 384 | 1 | Town |
| Colony | 12 | 281 | 265 | 1.08% | 130 | 2 | Town |
Cullman is the largest city in Cullman County, with a population of 21,128.
Colony is the smallest city in Cullman County, with a population of 281.
There are 12 cities in Cullman County, Alabama.