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ZIP codes in Wyandotte County

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

18

ZIP codes

3

cross the county line

195,187

people in these ZIPs

105

counties in KS

Most people

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Wyandotte County ZIP list

More counties in Kansas

All 105 counties in Kansas

Questions people actually ask

How many ZIP codes are in Wyandotte County, Kansas?

18 ZIP codes reach into Wyandotte 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 Wyandotte County has the most people?

66102 (Kansas City) has about 29,443 residents, the most of any ZIP touching Wyandotte County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Wyandotte 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 Wyandotte 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