ZIP Code 51250

51250 is one of Iowa's ZIP codes, delivering to addresses in Sioux Center, Sioux County.

City: Sioux Center
County: Sioux County
State: Iowa
Prefix: 512xx

Where this code sits

51250 is part of the 512xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sioux Center.

Sioux Center Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51250 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51250

The ZIP codes whose reference points sit closest to 51250.
ZIP code	Distance	Delivers to
ZIP code 51041	7.6 mi	Orange City, IA
ZIP code 51239	8.1 mi	Hull, IA
ZIP code 51036	8.2 mi	Maurice, IA
ZIP code 51247	11 mi	Rock Valley, IA
ZIP code 51027	11 mi	Ireton, IA
ZIP code 51003	11 mi	Alton, IA
ZIP code 51234	13 mi	Boyden, IA
ZIP code 51238	13 mi	Hospers, 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 51250, plotted from its record coordinates.

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

Scope ZIP code 51250. 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.