ZIP codes in Nevada County
16 ZIPs touch Nevada County, California. The blue dashed line is the county border; orange ZIPs reach into it.
16
ZIP codes
5
cross the county line
119,063
people in these ZIPs
58
counties in CA
Most people
Nevada County ZIP list
More counties in California
- Mendocino County31
- Merced County27
- Modoc County12
- Mono County9
- Monterey County38
- Napa County14
- Orange County149
- Placer County35
- Plumas County19
- Riverside County105
- Sacramento County135
- San Benito County8
Questions people actually ask
How many ZIP codes are in Nevada County, California?
16 ZIP codes reach into Nevada County, including 4 PO Box or single-address ZIPs placed by the town they serve. 5 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Nevada County has the most people?
95945 (Grass Valley) has about 27,470 residents, the most of any ZIP touching Nevada County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Nevada County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Nevada County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from