4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 47448 | Nashville | 8,117 |
| 46160 | Morgantown | 6,514 |
| 46164 | Nineveh | 3,840 |
| 47435 | Helmsburg | 137 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Brown County, Indiana (US Census).