8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 95945 | Grass Valley | 27,388 |
| 95949 | Grass Valley | 21,232 |
| 96161 | Truckee | 19,146 |
| 95959 | Nevada City | 18,244 |
| 95946 | Penn Valley | 9,049 |
| 95975 | Rough And Ready | 1,628 |
| 95986 | Washington | 104 |
| 96111 | Floriston | 23 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Nevada County, California (US Census).