ZIP codes in Calaveras County
22 ZIPs touch Calaveras County, California. The blue dashed line is the county border; orange ZIPs reach into it.
22
ZIP codes
3
cross the county line
51,012
people in these ZIPs
58
counties in CA
Most people
Calaveras County ZIP list
More counties in California
- Alameda County73
- Alpine County4
- Amador County14
- Butte County25
- Colusa County9
- Contra Costa County59
- Del Norte County6
- El Dorado County32
- Fresno County101
- Glenn County8
Questions people actually ask
How many ZIP codes are in Calaveras County, California?
22 ZIP codes reach into Calaveras County, including 1 PO Box or single-address ZIPs placed by the town they serve. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Calaveras County has the most people?
95252 (Valley Springs) has about 14,252 residents, the most of any ZIP touching Calaveras County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Calaveras 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 Calaveras 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