ZIP Code 57659

57659 is one of South Dakota's ZIP codes, delivering to addresses in Walker, Corson County.

City: Walker
County: Corson County
State: South Dakota
Prefix: 576xx

Where this code sits

57659 is part of the 576xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Walker.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57659 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57659

The ZIP codes whose reference points sit closest to 57659.
ZIP code	Distance	Delivers to
ZIP code 58568	9.1 mi	Selfridge, ND
ZIP code 57642	9.8 mi	Mc Laughlin, SD
ZIP code 57621	10 mi	Bullhead, SD
ZIP code 57641	14 mi	Mc Intosh, SD
ZIP code 57660	20 mi	Watauga, SD
ZIP code 58569	21 mi	Shields, ND
ZIP code 57639	21 mi	Little Eagle, SD
ZIP code 58538	25 mi	Fort Yates, ND

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 57659, plotted from its record coordinates.

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

Scope ZIP code 57659. 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.