ZIP Code 32421

32421 is one of Florida's ZIP codes, delivering to addresses in Altha, Calhoun County.

City: Altha
County: Calhoun County
State: Florida
Prefix: 324xx

Where this code sits

32421 is part of the 324xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Altha.

Altha Florida ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 32421 delivers to without sharing its boundary.

ZIP codes nearest 32421

The ZIP codes whose reference points sit closest to 32421.
ZIP code	Distance	Delivers to
ZIP code 32449	8.9 mi	Wewahitchka, FL
ZIP code 32424	9.1 mi	Blountstown, FL
ZIP code 32448	10 mi	Marianna, FL
ZIP code 32430	12 mi	Clarksville, FL
ZIP code 32432	14 mi	Cypress, FL
ZIP code 32420	14 mi	Alford, FL
ZIP code 32321	15 mi	Bristol, FL
ZIP code 32442	15 mi	Grand Ridge, FL

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 32421, plotted from its record coordinates.

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

Scope ZIP code 32421. 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.