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ZIP codes in Grant County

3 ZIPs touch Grant County, Kansas. The blue dashed line is the county border; orange ZIPs reach into it.

3

ZIP codes

3

cross the county line

10,401

people in these ZIPs

105

counties in KS

Most people

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Grant County ZIP list

More counties in Kansas

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Questions people actually ask

How many ZIP codes are in Grant County, Kansas?

3 ZIP codes reach into Grant County. 3 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Grant County has the most people?

67880 (Ulysses) has about 7,293 residents, the most of any ZIP touching Grant County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Grant 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 Grant 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