There are 23 zip codes in Belmont County, Ohio. The most populated is 43950, located in Saint Clairsville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4395016,472Saint Clairsville
439357,998Martins Ferry
439067,987Bellaire
437136,544Barnesville
439126,011Bridgeport
439474,869Shadyside
437182,704Belmont
437192,593Bethesda
439422,281Powhatan Point
439772,155Flushing
439332,052Jacobsburg
43905607Barton
43983534Piedmont
43940388Neffs
43759269Morristown
43967240Warnock
43985223Holloway
43972119Bannock
43902118Alledonia
43928112Glencoe
4393478Lansing
4390961Blaine
4395155Lafferty

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