ZIP Code 50842

50842 is one of Iowa's ZIP codes, delivering to addresses in Cromwell, Union County.

City: Cromwell
County: Union County
State: Iowa
Prefix: 508xx

Where this code sits

50842 is part of the 508xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cromwell.

Cromwell Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50842 delivers to without sharing its boundary.

641 Area code 641

ZIP codes nearest 50842

The ZIP codes whose reference points sit closest to 50842.
ZIP code	Distance	Delivers to
ZIP code 50801	6.0 mi	Creston, IA
ZIP code 50859	7.0 mi	Prescott, IA
ZIP code 50851	12 mi	Lenox, IA
ZIP code 50858	13 mi	Orient, IA
ZIP code 50830	14 mi	Afton, IA
ZIP code 50861	14 mi	Shannon City, IA
ZIP code 50831	15 mi	Arispe, IA
ZIP code 50841	15 mi	Corning, 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 50842, plotted from its record coordinates.

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

Scope ZIP code 50842. 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.