There are 28 zip codes in Mahoning County, Ohio. The most populated is 44512, located in Youngstown. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
44512Youngstown32,821
44515Youngstown27,543
44514Youngstown23,391
44406Canfield22,101
44511Youngstown19,354
44505Youngstown16,534
44509Youngstown11,044
44471Struthers10,383
44502Youngstown9,043
44405Campbell7,841
44504Youngstown5,165
44672Sebring4,781
44507Youngstown4,761
44442New Middletown3,864
44436Lowellville3,348
44609Beloit3,267
44451North Jackson2,993
44452North Lima2,984
44401Berlin Center2,716
44506Youngstown2,489
44429Lake Milton2,353
44510Youngstown2,064
44443New Springfield2,062
44449North Benton1,526
44503Youngstown960
44454Petersburg639
44555Youngstown177
44619Damascus121
showing: 28 rows

Mahoning County, Ohio Zip Codes by Population (2024)