Defiance Ohio ZIP Codes

Defiance holds a single ZIP code.

Every ZIP code in Defiance

The complete list of Defiance, Ohio ZIP codes with the county each falls in.
ZIP code	County
43512	Defiance County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Defiance codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Defiance. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Defiance ZIP code begins 435. Those first three digits identify the sectional center facility that processes mail for this part of Ohio. Statewide that range covers 55 ZIP codes, so Defiance accounts for 2% of it.

Every Ohio ZIP prefix and the region it covers →

Area codes covering Defiance

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Defiance occupies.

Defiance Ohio area codes in full →

Where Defiance's ZIP codes sit

Each point is one Defiance ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Defiance

The closest places to Defiance with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Sherwood Ohio ZIP codes	9.5 mi	1 ZIP code
Ney Ohio ZIP codes	11 mi	1 ZIP code
New Bavaria Ohio ZIP codes	12 mi	1 ZIP code
Holgate Ohio ZIP codes	13 mi	1 ZIP code
Cecil Ohio ZIP codes	13 mi	1 ZIP code
Continental Ohio ZIP codes	14 mi	1 ZIP code
Melrose Ohio ZIP codes	14 mi	1 ZIP code
Paulding Ohio ZIP codes	15 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.