ZIP codes in Wyandot County
15 ZIPs touch Wyandot County, Ohio. The blue dashed line is the county border; orange ZIPs reach into it.
15
ZIP codes
10
cross the county line
48,194
people in these ZIPs
88
counties in OH
Most people
Wyandot County ZIP list
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Questions people actually ask
How many ZIP codes are in Wyandot County, Ohio?
15 ZIP codes reach into Wyandot County, including 2 PO Box or single-address ZIPs placed by the town they serve. 10 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Wyandot County has the most people?
44820 (Bucyrus) has about 17,291 residents, the most of any ZIP touching Wyandot County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Wyandot 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 Wyandot 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