ZIP Code 57548

57548 is one of South Dakota's ZIP codes, delivering to addresses in Lower Brule, Lyman County.

City: Lower Brule
County: Lyman County
State: South Dakota
Prefix: 575xx

Where this code sits

57548 is part of the 575xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lower Brule.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57548 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57548

The ZIP codes whose reference points sit closest to 57548.
ZIP code	Distance	Delivers to
ZIP code 57339	11 mi	Fort Thompson, SD
ZIP code 57346	13 mi	Stephan, SD
ZIP code 57569	15 mi	Reliance, SD
ZIP code 57544	18 mi	Kennebec, SD
ZIP code 57365	23 mi	Oacoma, SD
ZIP code 57326	24 mi	Chamberlain, SD
ZIP code 57325	26 mi	Chamberlain, SD
ZIP code 57568	27 mi	Presho, 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 57548, plotted from its record coordinates.

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

Scope ZIP code 57548. 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.