ZIP codes in Auglaize County

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

ZIP codes

cross the county line

77,334

people in these ZIPs

counties in OH

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Auglaize County ZIP list

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Questions people actually ask

How many ZIP codes are in Auglaize County, Ohio?

18 ZIP codes reach into Auglaize County. 13 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Auglaize County has the most people?

45895 (Wapakoneta) has about 17,998 residents, the most of any ZIP touching Auglaize County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Auglaize 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 Auglaize 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