There are 8 zip codes in Noble County, Ohio. The most populated is 43724, located in Caldwell. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
437249,183Caldwell
437721,748Pleasant City
457451,049Lower Salem
45727766Dexter City
43788624Summerfield
43779531Sarahsville
43717121Belle Valley
4371162Ava

Zip Codes in Noble County, Ohio by Population (2024)