ZIP Code 43433

43433 is one of Ohio's ZIP codes, delivering to addresses in Gypsum, Ottawa County.

City: Gypsum
County: Ottawa County
State: Ohio
Prefix: 434xx

Where this code sits

43433 is part of the 434xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gypsum.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 43433 delivers to without sharing its boundary.

ZIP codes nearest 43433

The ZIP codes whose reference points sit closest to 43433.
ZIP code	Distance	Delivers to
ZIP code 43452	3.5 mi	Port Clinton, OH
ZIP code 43440	5.1 mi	Lakeside Marblehead, OH
ZIP code 43464	7.9 mi	Vickery, OH
ZIP code 44824	8.9 mi	Castalia, OH
ZIP code 43439	8.9 mi	Lacarne, OH
ZIP code 44871	9.2 mi	Sandusky, OH
ZIP code 44870	9.8 mi	Sandusky, OH
ZIP code 43456	11 mi	Put In Bay, OH

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 43433, plotted from its record coordinates.

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

Scope ZIP code 43433. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.