Fremont Ohio ZIP Codes

Fremont holds a single ZIP code.

Every ZIP code in Fremont

The complete list of Fremont, Ohio ZIP codes with the county each falls in.
ZIP code	County
43420	Sandusky 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Fremont codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Fremont. 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 Fremont ZIP code begins 434. Those first three digits identify the sectional center facility that processes mail for this part of Ohio. Statewide that range covers 45 ZIP codes, so Fremont accounts for 2% of it.

Every Ohio ZIP prefix and the region it covers →

Area codes covering Fremont

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 Fremont occupies.

Fremont Ohio area codes in full →

Where Fremont's ZIP codes sit

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

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

Cities near Fremont

The closest places to Fremont with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Lindsey Ohio ZIP codes	7.2 mi	1 ZIP code
Green Springs Ohio ZIP codes	7.4 mi	1 ZIP code
Clyde Ohio ZIP codes	7.8 mi	1 ZIP code
Burgoon Ohio ZIP codes	9.2 mi	1 ZIP code
Helena Ohio ZIP codes	9.2 mi	1 ZIP code
Bettsville Ohio ZIP codes	9.7 mi	1 ZIP code
Oak Harbor Ohio ZIP codes	11 mi	1 ZIP code
Gibsonburg Ohio ZIP codes	11 mi	1 ZIP code

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