4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 47448 | Nashville | 7,747 |
| 46160 | Morgantown | 6,102 |
| 46164 | Nineveh | 4,045 |
| 47435 | Helmsburg | 119 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Brown County, Indiana (US Census).