St. Clair County, Alabama Zip Codes by Population (2024)
The most populated Zip Code in St. Clair County, Alabama is 35120, located in Odenville. * 2024 populations estimated based on the latest ACS 5-year data.
| Odenville | 17,943 |
| Springville | 12,908 |
| Moody | 11,737 |
| Pell City | 10,759 |
| Pell City | 10,264 |
| Ashville | 6,557 |
| Cropwell | 4,649 |
| Ragland | 3,373 |
| Steele | 2,599 |
| Riverside | 1,917 |
| Cook Springs | 257 |
| Margaret | 0 |