17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alabaster | 1 | 34,583 | 33,392 | 0.69% | 1,317 | 26.25 | City |
| Pelham | 2 | 25,703 | 24,247 | 1.15% | 664 | 38.74 | City |
| Helena | 3 | 22,801 | 21,091 | 1.52% | 1,032 | 22.09 | City |
| Calera | 4 | 19,238 | 16,615 | 2.81% | 784 | 24.53 | City |
| Chelsea | 5 | 17,803 | 15,223 | 2.99% | 539 | 33 | City |
| Montevallo | 6 | 8,030 | 7,224 | 2.05% | 626 | 12.84 | City |
| Columbiana | 7 | 5,004 | 4,523 | 1.96% | 285 | 17.54 | City |
| Indian Springs Village | 8 | 2,492 | 2,492 | 0% | 643 | 3.88 | City |
| Vincent | 9 | 2,047 | 1,989 | 0.59% | 99 | 20.58 | Town |
| Westover | 10 | 1,990 | 1,792 | 2.05% | 100 | 19.83 | Town |
| Wilsonville | 11 | 1,970 | 1,860 | 1.13% | 185 | 10.63 | Town |
| Harpersville | 12 | 1,945 | 1,625 | 3.4% | 91 | 21.29 | Town |
| Vandiver | 13 | 1,174 | 914 | 0.26% | 58 | 20.31 | CDP |
| Shelby | 14 | 738 | 987 | -2.64% | 39 | 18.76 | CDP |
| Sterrett | 15 | 738 | 914 | 0.27% | 32 | 22.92 | CDP |
| Brantleyville | 16 | 674 | 810 | -2.04% | 307 | 2.20 | CDP |
| Wilton | 17 | 595 | 590 | 0.17% | 622 | 0.96 | Town |
Alabaster is the largest city in Shelby County, with a population of 34,583.
Wilton is the smallest city in Shelby County.
There are 17 cities in Shelby County, Alabama.