Chamberlain South Dakota ZIP Codes

Chamberlain holds 2 ZIP codes, all inside one county and one postal prefix.

Every ZIP code in Chamberlain

The complete list of Chamberlain, South Dakota ZIP codes with the county each falls in.
ZIP code	County
57325	Brule County
57326	Brule County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Chamberlain codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Chamberlain. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Chamberlain ZIP code begins 573. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 62 ZIP codes, so Chamberlain accounts for 3% of it.

Every South Dakota ZIP prefix and the region it covers →

Area codes covering Chamberlain

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Chamberlain occupies.

605 Area code 605

Chamberlain South Dakota area codes in full →

Where Chamberlain's ZIP codes sit

Each point is one Chamberlain ZIP code, plotted from its record coordinates.

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

Cities near Chamberlain

The closest places to Chamberlain with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Oacoma South Dakota ZIP codes	1.9 mi	1 ZIP code
Pukwana South Dakota ZIP codes	7.4 mi	1 ZIP code
Reliance South Dakota ZIP codes	15 mi	1 ZIP code
Kimball South Dakota ZIP codes	19 mi	1 ZIP code
Kennebec South Dakota ZIP codes	28 mi	1 ZIP code
White Lake South Dakota ZIP codes	31 mi	1 ZIP code
Presho South Dakota ZIP codes	37 mi	1 ZIP code
Platte South Dakota ZIP codes	37 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.