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County ZIP codes · South Dakota · FIPS 46015

Brule County, SD ZIP Codes

Brule County, South Dakota has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 6 residential and 1 for PO boxes or a single organization. 3 of the residential ones lie mainly in Brule County and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $78,100 in 57369 (Platte) to $80,139 in 57325 (Chamberlain) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Brule County?

57325 · Chamberlain: $80k57341 · Gann Valley: –57355 · Kimball: $63k57369 · Platte: $78k57370 · Pukwana: $59k57383 · White Lake: $63k57369573255735557341573835737057325 · Chamberlain: $80k57341 · Gann Valley: –57355 · Kimball: $63k57369 · Platte: $78k57370 · Pukwana: $59k57383 · White Lake: $63k57369573255735557341573835737057325 · Chamberlain: $80k57341 · Gann Valley: –57355 · Kimball: $63k57369 · Platte: $78k57370 · Pukwana: $59k57383 · White Lake: $63k573695732557355573415738357370
The residential ZIP codes of Brule County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 6 postal town names: Chamberlain, Platte, Kimball, White Lake, Pukwana, Gann Valley.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 6 residential ZIP codes in Brule County

3 ZIP codes lie mainly in Brule County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Brule County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57325 Chamberlain 3,335 12 $80k $230k 64%
57355 Kimball 1,120 3 $63k $144k 89%
57370 Pukwana 894 4 $59k $180k 78%

Partly in Brule County

Residential ZIP codes mainly in another county that reach at least 1% into Brule County, by their share here
In this county
57369 Platte 2,630 6 $78k $237k 23%
57383 White Lake 899 4 $63k $109k 5%
57341 Gann Valley 79 0 – – 4%

Download the 7 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Brule County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Brule County and in the neighboring counties
ZIPIn BruleElsewhere
5732564%Buffalo County 36%
5736923%Charles Mix County 74%; Douglas County 2%
5735589%Jerauld County 7%; Buffalo County 4%
573835%Aurora County 95%
5737078%Buffalo County 22%
573414%Buffalo County 96%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Brule County without a residential area (GeoNames postal codes)
ZIPPostal name
57326Chamberlain

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Brule County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Brule County starts with 573.

Three-digit prefixes of Brule County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Brule County's
PrefixSectional centerHereAll codes
573 Dakota Central, SD (SCF 572) 7 62

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.