ZIP Code 50131

50131 is one of Iowa's ZIP codes, delivering to addresses in Johnston, Polk County.

City: Johnston
County: Polk County
State: Iowa
Prefix: 501xx

Where this code sits

50131 is part of the 501xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Johnston.

Johnston Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50131 delivers to without sharing its boundary.

515 Area code 515

ZIP codes nearest 50131

The ZIP codes whose reference points sit closest to 50131.
ZIP code	Distance	Delivers to
ZIP code 50322	3.2 mi	Urbandale, IA
ZIP code 50398	3.2 mi	Urbandale, IA
ZIP code 50310	3.6 mi	Des Moines, IA
ZIP code 50111	4.5 mi	Grimes, IA
ZIP code 50323	4.7 mi	Urbandale, IA
ZIP code 50324	4.9 mi	Windsor Heights, IA
ZIP code 50313	4.9 mi	Des Moines, IA
ZIP code 50023	5.1 mi	Ankeny, 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 50131, plotted from its record coordinates.

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

Scope ZIP code 50131. 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.