7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 37075 | Hendersonville | 72,102 |
| 37066 | Gallatin | 59,554 |
| 37148 | Portland | 25,029 |
| 37186 | Westmoreland | 11,091 |
| 37048 | Cottontown | 6,613 |
| 37022 | Bethpage | 6,163 |
| 37031 | Castalian Springs | 4,089 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Sumner County, Tennessee (US Census).