ZIP Code 57791

57791 is one of South Dakota's ZIP codes, delivering to addresses in Wasta, Pennington County.

City: Wasta
County: Pennington County
State: South Dakota
Prefix: 577xx

Where this code sits

57791 is part of the 577xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Wasta.

Wasta South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57791 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57791

The ZIP codes whose reference points sit closest to 57791.
ZIP code	Distance	Delivers to
ZIP code 57767	13 mi	Owanka, SD
ZIP code 57790	20 mi	Wall, SD
ZIP code 57761	21 mi	New Underwood, SD
ZIP code 57775	22 mi	Quinn, SD
ZIP code 57737	25 mi	Enning, SD
ZIP code 57725	26 mi	Caputa, SD
ZIP code 57792	27 mi	White Owl, SD
ZIP code 57780	30 mi	Scenic, SD

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 57791, plotted from its record coordinates.

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

Scope ZIP code 57791. 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.