ZIP Code 57642

57642 is one of South Dakota's ZIP codes, delivering to addresses in Mc Laughlin, Corson County.

City: Mc Laughlin
County: Corson County
State: South Dakota
Prefix: 576xx

Where this code sits

57642 is part of the 576xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mc Laughlin.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57642 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57642

The ZIP codes whose reference points sit closest to 57642.
ZIP code	Distance	Delivers to
ZIP code 57659	9.8 mi	Walker, SD
ZIP code 57621	12 mi	Bullhead, SD
ZIP code 57639	15 mi	Little Eagle, SD
ZIP code 58568	17 mi	Selfridge, ND
ZIP code 57641	17 mi	Mc Intosh, SD
ZIP code 58538	19 mi	Fort Yates, ND
ZIP code 57658	21 mi	Wakpala, SD
ZIP code 58569	28 mi	Shields, 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 57642, plotted from its record coordinates.

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

Scope ZIP code 57642. 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.