ZIP codes in Fulton County
12 ZIPs touch Fulton County, Ohio. The blue dashed line is the county border; orange ZIPs reach into it.
12
ZIP codes
8
cross the county line
57,335
people in these ZIPs
88
counties in OH
Most people
Fulton County ZIP list
More counties in Ohio
- Defiance County16
- Delaware County25
- Erie County15
- Fairfield County19
- Fayette County11
- Franklin County68
- Gallia County13
- Geauga County22
- Greene County25
- Guernsey County20
- Hamilton County84
- Hancock County25
Questions people actually ask
How many ZIP codes are in Fulton County, Ohio?
12 ZIP codes reach into Fulton County. 8 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Fulton County has the most people?
43567 (Wauseon) has about 12,754 residents, the most of any ZIP touching Fulton County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Fulton 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 Fulton 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