Cadiz Ohio ZIP Codes

Cadiz holds a single ZIP code.

Every ZIP code in Cadiz

The complete list of Cadiz, Ohio ZIP codes with the county each falls in.
ZIP code	County
43907	Harrison 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Cadiz codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Cadiz. 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 Cadiz ZIP code begins 439. Those first three digits identify the sectional center facility that processes mail for this part of Ohio. Statewide that range covers 61 ZIP codes, so Cadiz accounts for 2% of it.

Every Ohio ZIP prefix and the region it covers →

Area codes covering Cadiz

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 Cadiz occupies.

Cadiz Ohio area codes in full →

Where Cadiz's ZIP codes sit

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

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

Cities near Cadiz

The closest places to Cadiz with their own ZIP code list, nearest first.
City	Distance	ZIP codes
New Athens Ohio ZIP codes	5.0 mi	1 ZIP code
Adena Ohio ZIP codes	6.7 mi	1 ZIP code
Hopedale Ohio ZIP codes	7.0 mi	1 ZIP code
Harrisville Ohio ZIP codes	7.6 mi	1 ZIP code
Jewett Ohio ZIP codes	7.7 mi	1 ZIP code
Flushing Ohio ZIP codes	8.4 mi	1 ZIP code
Holloway Ohio ZIP codes	9.8 mi	1 ZIP code
Deersville Ohio ZIP codes	11 mi	1 ZIP code

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