8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 95945 | Grass Valley | 27,470 |
| 95949 | Grass Valley | 20,552 |
| 96161 | Truckee | 19,634 |
| 95959 | Nevada City | 17,683 |
| 95946 | Penn Valley | 9,958 |
| 95975 | Rough And Ready | 1,088 |
| 95986 | Washington | 115 |
| 96111 | Floriston | 26 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Nevada County, California (US Census).