There are 5 zip codes in Jackson County, Ohio. The most populated is 45640, located in Jackson. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
45640Jackson16,217
45692Wellston8,164
45656Oak Hill6,442
45685Thurman1,485
45621Coalton343

Jackson County, Ohio Zip Codes by Population (2024)