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
Population
City
4451232,821Youngstown
4451527,543Youngstown
4451423,391Youngstown
4440622,101Canfield
4451119,354Youngstown
4450516,534Youngstown
4450911,044Youngstown
4447110,383Struthers
445029,043Youngstown
444057,841Campbell
445045,165Youngstown
446724,781Sebring
445074,761Youngstown
444423,864New Middletown
444363,348Lowellville
446093,267Beloit
444512,993North Jackson
444522,984North Lima
444012,716Berlin Center
445062,489Youngstown
444292,353Lake Milton
445102,064Youngstown
444432,062New Springfield
444491,526North Benton
44503960Youngstown
44454639Petersburg
44555177Youngstown
44619121Damascus
showing: 28 rows

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