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ZIP codes in Cochise County

27 ZIPs touch Cochise County, Arizona. The blue dashed line is the county border; orange ZIPs reach into it.

27

ZIP codes

3

cross the county line

128,541

people in these ZIPs

15

counties in AZ

Most people

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Cochise County ZIP list

More counties in Arizona

All 15 counties in Arizona

Questions people actually ask

How many ZIP codes are in Cochise County, Arizona?

27 ZIP codes reach into Cochise County, including 4 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 Cochise County has the most people?

85635 (Sierra Vista) has about 34,193 residents, the most of any ZIP touching Cochise County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Cochise 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 Cochise 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