ZIP codes in Geary County

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

ZIP codes

cross the county line

91,470

people in these ZIPs

105

counties in KS

Most people

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Geary County ZIP list

More counties in Kansas

All 105 counties in Kansas

Questions people actually ask

How many ZIP codes are in Geary County, Kansas?

8 ZIP codes reach into Geary County. 7 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Geary County has the most people?

66502 (Manhattan) has about 43,693 residents, the most of any ZIP touching Geary County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Geary 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 Geary 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