ZIP codes in Santa Cruz County
11 ZIPs touch Santa Cruz County, Arizona. The blue dashed line is the county border; orange ZIPs reach into it.
11
ZIP codes
4
cross the county line
75,998
people in these ZIPs
15
counties in AZ
Most people
Santa Cruz County ZIP list
More counties in Arizona
- La Paz County9
- Maricopa County202
- Mohave County32
- Navajo County33
- Pima County74
- Pinal County40
- Yavapai County38
- Yuma County12
Questions people actually ask
How many ZIP codes are in Santa Cruz County, Arizona?
11 ZIP codes reach into Santa Cruz County, including 2 PO Box or single-address ZIPs placed by the town they serve. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Santa Cruz County has the most people?
85614 (Green Valley) has about 25,381 residents, the most of any ZIP touching Santa Cruz County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Santa Cruz 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 Santa Cruz 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.
Keep exploring
Updated 2026-11-10 · Where the data comes from