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County ZIP codes · South Dakota · FIPS 46129

Walworth County, SD ZIP Codes

Walworth County, South Dakota has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Walworth County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $61,708 in 57472 (Selby) to $66,003 in 57601 (Mobridge) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Walworth County?

57420 · Akaska: $41k57428 · Bowdle: $64k57450 · Hoven: $87k57452 · Java: $54k57472 · Selby: $62k57601 · Mobridge: $66k57631 · Glenham: $57k5760157472574525745057428576315742057420 · Akaska: $41k57428 · Bowdle: $64k57450 · Hoven: $87k57452 · Java: $54k57472 · Selby: $62k57601 · Mobridge: $66k57631 · Glenham: $57k5760157472574525745057428576315742057420 · Akaska: $41k57428 · Bowdle: $64k57450 · Hoven: $87k57452 · Java: $54k57472 · Selby: $62k57601 · Mobridge: $66k57631 · Glenham: $57k57601574725745257450574285763157420
The residential ZIP codes of Walworth 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 7 postal town names: Mobridge, Selby, Hoven, Bowdle, Glenham, Akaska, Java.

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

All 7 residential ZIP codes in Walworth County

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

Residential ZIP codes mainly in Walworth County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57472 Selby 1,165 4 $62k $120k 99%
57631 Glenham 364 3 $57k $163k 52%
57420 Akaska 260 6 $41k $79k 100%
57452 Java 136 1 $54k $81k 71%

Partly in Walworth County

Residential ZIP codes mainly in another county that reach at least 1% into Walworth County, by their share here
In this county
57428 Bowdle 567 3 $64k $144k 37%
57450 Hoven 624 3 $87k $134k 35%
57601 Mobridge 3,422 8 $66k $155k 6%

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 Walworth County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Walworth County and in the neighboring counties
ZIPIn WalworthElsewhere
576016%Dewey County 85%; Corson County 9%
5747299%
5745035%Potter County 65%
5742837%Edmunds County 63%
5763152%Campbell County 48%
5745271%Campbell County 29%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Walworth County's ZIP codes use 2 prefixes: 574 and 576.

Three-digit prefixes of Walworth 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 Walworth County's
PrefixSectional centerHereAll codes
574 Dakota Central, SD (SCF 572) 5 50
576 Bismarck, ND (SCF 585) 2 32

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