There are 8 zip codes in Newton County, Missouri. The most populated is 64804, located in Joplin. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
64804Joplin37,043
64850Neosho23,931
64865Seneca5,814
64844Granby4,230
64840Diamond3,456
64866Stark City988
64842Fairview932
64858Racine334

Newton County, Missouri Zip Codes by Population (2024)