There are 8 zip codes in Lake County, Ohio. The most populated is 44060, located in Mentor. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4406059,932Mentor
4407758,369Painesville
4409436,958Willoughby
4409532,635Eastlake
4405719,273Madison
4409217,138Wickliffe
440817,003Perry
44045662Grand River

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