ZIP Code 50258

50258 is one of Iowa's ZIP codes, delivering to addresses in Union, Hardin County.

City: Union
County: Hardin County
State: Iowa
Prefix: 502xx

Where this code sits

50258 is part of the 502xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Union.

Union Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50258 delivers to without sharing its boundary.

641 Area code 641

ZIP codes nearest 50258

The ZIP codes whose reference points sit closest to 50258.
ZIP code	Distance	Delivers to
ZIP code 50269	2.2 mi	Whitten, IA
ZIP code 50148	6.0 mi	Liscomb, IA
ZIP code 50206	6.2 mi	New Providence, IA
ZIP code 50627	7.7 mi	Eldora, IA
ZIP code 50621	8.8 mi	Conrad, IA
ZIP code 50239	9.5 mi	Saint Anthony, IA
ZIP code 50005	10 mi	Albion, IA
ZIP code 50672	12 mi	Steamboat Rock, 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 50258, plotted from its record coordinates.

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

Scope ZIP code 50258. 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.