ZIP Code 50604

50604 is one of Iowa's ZIP codes, delivering to addresses in Aplington, Butler County.

City: Aplington
County: Butler County
State: Iowa
Prefix: 506xx

Where this code sits

50604 is part of the 506xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Aplington.

Aplington Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50604 delivers to without sharing its boundary.

319 Area code 319

ZIP codes nearest 50604

The ZIP codes whose reference points sit closest to 50604.
ZIP code	Distance	Delivers to
ZIP code 50608	4.3 mi	Austinville, IA
ZIP code 50665	5.5 mi	Parkersburg, IA
ZIP code 50649	5.5 mi	Kesley, IA
ZIP code 50673	9.3 mi	Stout, IA
ZIP code 50601	9.7 mi	Ackley, IA
ZIP code 50680	10 mi	Wellsburg, IA
ZIP code 50625	11 mi	Dumont, IA
ZIP code 50602	13 mi	Allison, 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 50604, plotted from its record coordinates.

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

Scope ZIP code 50604. 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.