ZIP Code 50428

50428 is one of Iowa's ZIP codes, delivering to addresses in Clear Lake, Cerro Gordo County.

City: Clear Lake
County: Cerro Gordo County
State: Iowa
Prefix: 504xx

Where this code sits

50428 is part of the 504xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Clear Lake.

Clear Lake Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50428 delivers to without sharing its boundary.

641 Area code 641

ZIP codes nearest 50428

The ZIP codes whose reference points sit closest to 50428.
ZIP code	Distance	Delivers to
ZIP code 50482	4.4 mi	Ventura, IA
ZIP code 50434	8.7 mi	Fertile, IA
ZIP code 50402	9.3 mi	Mason City, IA
ZIP code 50401	9.6 mi	Mason City, IA
ZIP code 50444	9.7 mi	Hanlontown, IA
ZIP code 50438	11 mi	Garner, IA
ZIP code 50479	12 mi	Thornton, IA
ZIP code 50469	13 mi	Rockwell, IA

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 50428, plotted from its record coordinates.

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

Scope ZIP code 50428. 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.