5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 37683 | Mountain City | 13,716 |
| 37640 | Butler | 3,343 |
| 37688 | Shady Valley | 1,057 |
| 37680 | Laurel Bloomery | 594 |
| 37691 | Trade | 532 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Johnson County, Tennessee (US Census).