ZIP Code 50231

50231 is one of Iowa's ZIP codes, delivering to addresses in Randall, Hamilton County.

City: Randall
County: Hamilton County
State: Iowa
Prefix: 502xx

Where this code sits

50231 is part of the 502xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Randall.

Randall Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50231 delivers to without sharing its boundary.

515 Area code 515

ZIP codes nearest 50231

The ZIP codes whose reference points sit closest to 50231.
ZIP code	Distance	Delivers to
ZIP code 50248	3.8 mi	Story City, IA
ZIP code 50075	5.1 mi	Ellsworth, IA
ZIP code 50130	5.6 mi	Jewell, IA
ZIP code 50236	7.0 mi	Roland, IA
ZIP code 50105	8.8 mi	Gilbert, IA
ZIP code 50246	9.6 mi	Stanhope, IA
ZIP code 50102	11 mi	Garden City, IA
ZIP code 50230	11 mi	Radcliffe, 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 50231, plotted from its record coordinates.

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

Scope ZIP code 50231. 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.