There are 8 zip codes in Harrison County, Missouri. The most populated is 64424, located in Bethany. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
644243,806Bethany
644811,017Ridgeway
64442911Eagleville
64642746Gilman City
64471499New Hampton
64426459Blythedale
64458260Hatfield
64467179Martinsville

Zip Codes in Harrison County, Missouri by Population (2024)