4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 37321 | Dayton | 20,672 |
| 37381 | Spring City | 10,167 |
| 37332 | Evensville | 1,977 |
| 37337 | Grandview | 828 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Rhea County, Tennessee (US Census).