ZIP codes in Clay County
18 ZIPs touch Clay County, Minnesota. The blue dashed line is the county border; orange ZIPs reach into it.
18
ZIP codes
8
cross the county line
75,553
people in these ZIPs
87
counties in MN
Most people
Clay County ZIP list
More counties in Minnesota
- Brown County12
- Carlton County15
- Carver County27
- Cass County26
- Chippewa County10
- Chisago County18
- Clearwater County11
- Cook County6
- Cottonwood County13
- Crow Wing County19
- Dakota County22
- Dodge County10
Questions people actually ask
How many ZIP codes are in Clay County, Minnesota?
18 ZIP codes reach into Clay County, including 1 PO Box or single-address ZIPs placed by the town they serve. 8 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Clay County has the most people?
56560 (Moorhead) has about 44,405 residents, the most of any ZIP touching Clay County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Clay 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 Clay 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