There are 5 zip codes in Atchison County, Kansas. The most populated is 66002, located in Atchison. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
6600213,376Atchison
66023889Effingham
66041862Lancaster
66016688Cummings
66058292Muscotah
showing: 5 rows

Zip Codes in Atchison County, Kansas by Population (2024)