ZIP Code 51331

51331 is one of Iowa's ZIP codes, delivering to addresses in Arnolds Park, Dickinson County.

City: Arnolds Park
County: Dickinson County
State: Iowa
Prefix: 513xx

Where this code sits

51331 is part of the 513xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Arnolds Park.

Arnolds Park Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51331 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51331

The ZIP codes whose reference points sit closest to 51331.
ZIP code	Distance	Delivers to
ZIP code 51355	1.8 mi	Okoboji, IA
ZIP code 51351	3.5 mi	Milford, IA
ZIP code 51360	4.4 mi	Spirit Lake, IA
ZIP code 51364	8.2 mi	Terril, IA
ZIP code 51363	10 mi	Superior, IA
ZIP code 51347	11 mi	Lake Park, IA
ZIP code 51301	15 mi	Spencer, IA
ZIP code 51334	16 mi	Estherville, 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 51331, plotted from its record coordinates.

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

Scope ZIP code 51331. 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.