ZIP Code 57326

57326 is one of South Dakota's ZIP codes, delivering to addresses in Chamberlain, Brule County.

City: Chamberlain
County: Brule County
State: South Dakota
Prefix: 573xx

Where this code sits

57326 is part of the 573xx range, the group of codes handled by one mail processing centre. Chamberlain is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Chamberlain page.

Chamberlain South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57326 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57326

The ZIP codes whose reference points sit closest to 57326.
ZIP code	Distance	Delivers to
ZIP code 57325	1.4 mi	Chamberlain, SD
ZIP code 57365	3.3 mi	Oacoma, SD
ZIP code 57370	7.9 mi	Pukwana, SD
ZIP code 57569	14 mi	Reliance, SD
ZIP code 57339	17 mi	Fort Thompson, SD
ZIP code 57355	19 mi	Kimball, SD
ZIP code 57534	21 mi	Hamill, SD
ZIP code 57341	23 mi	Gann Valley, 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 57326, plotted from its record coordinates.

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

Scope ZIP code 57326. 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.