ZIP codes in Summit County

56 ZIPs touch Summit County, Ohio. The blue dashed line is the county border; orange ZIPs reach into it.

ZIP codes

cross the county line

727,893

people in these ZIPs

counties in OH

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Summit County ZIP list

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Questions people actually ask

How many ZIP codes are in Summit County, Ohio?

56 ZIP codes reach into Summit County, including 13 PO Box or single-address ZIPs placed by the town they serve. 18 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Summit County has the most people?

44720 (North Canton) has about 39,851 residents, the most of any ZIP touching Summit County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Summit County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Summit County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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Updated 2026-11-10 · Where the data comes from