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ZIP codes in Kern County

69 ZIPs touch Kern County, California. The blue dashed line is the county border; orange ZIPs reach into it.

69

ZIP codes

11

cross the county line

991,572

people in these ZIPs

58

counties in CA

Most people

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Kern County ZIP list

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Questions people actually ask

How many ZIP codes are in Kern County, California?

69 ZIP codes reach into Kern County, including 16 PO Box or single-address ZIPs placed by the town they serve. 11 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Kern County has the most people?

93307 (Bakersfield) has about 85,945 residents, the most of any ZIP touching Kern County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Kern 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 Kern 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