ZIP Code 50056

50056 is one of Iowa's ZIP codes, delivering to addresses in Colo, Story County.

City: Colo
County: Story County
State: Iowa
Prefix: 500xx

Where this code sits

50056 is part of the 500xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Colo.

Colo Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50056 delivers to without sharing its boundary.

641 Area code 641

ZIP codes nearest 50056

The ZIP codes whose reference points sit closest to 50056.
ZIP code	Distance	Delivers to
ZIP code 50201	7.2 mi	Nevada, IA
ZIP code 50247	7.2 mi	State Center, IA
ZIP code 50055	7.6 mi	Collins, IA
ZIP code 50011	8.3 mi	Ames, IA
ZIP code 50051	8.9 mi	Clemons, IA
ZIP code 50234	9.3 mi	Rhodes, IA
ZIP code 50161	9.4 mi	Maxwell, IA
ZIP code 50278	9.7 mi	Zearing, 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 50056, plotted from its record coordinates.

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

Scope ZIP code 50056. 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.