There are 21 zip codes in Jefferson County, Ohio. The most populated is 43952, located in Steubenville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4395217,412Steubenville
4395312,047Steubenville
439649,199Toronto
439385,868Mingo Junction
439103,283Bloomingdale
439433,180Rayland
439172,850Dillonvale
439442,538Richmond
439032,127Amsterdam
439011,907Adena
439631,309Tiltonsville
439301,250Hammondsville
439131,068Brilliant
439081,038Bergholz
43971970Yorkville
43932920Irondale
43948682Smithfield
43939291Mount Pleasant
43961239Stratton
43926237Empire
4392586East Springfield
showing: 21 rows

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