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County ZIP codes · South Dakota · FIPS 46045

Edmunds County, SD ZIP Codes

Edmunds County, South Dakota has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Edmunds County and 7 mainly in a neighboring county; 10 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Edmunds County?

57428 · Bowdle: $64k57435 · Cresbard: $98k57448 · Hosmer: $67k57451 · Ipswich: $86k57456 · Leola: $76k57460 · Mansfield: $140k57466 · Onaka: $51k57471 · Roscoe: $68k57475 · Tolstoy: $88k57481 · Westport: $68k5747157451574565748157428574485743557475574605746657428 · Bowdle: $64k57435 · Cresbard: $98k57448 · Hosmer: $67k57451 · Ipswich: $86k57456 · Leola: $76k57460 · Mansfield: $140k57466 · Onaka: $51k57471 · Roscoe: $68k57475 · Tolstoy: $88k57481 · Westport: $68k5747157451574565748157428574485743557475574605746657428 · Bowdle: $64k57435 · Cresbard: $98k57448 · Hosmer: $67k57451 · Ipswich: $86k57456 · Leola: $76k57460 · Mansfield: $140k57466 · Onaka: $51k57471 · Roscoe: $68k57475 · Tolstoy: $88k57481 · Westport: $68k574715745157456574815742857448574355747557460
The residential ZIP codes of Edmunds 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).

All 10 residential ZIP codes in Edmunds County

3 ZIP codes lie mainly in Edmunds County; 7 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Edmunds County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57451 Ipswich 2,485 6 $86k $196k 92%
57428 Bowdle 567 3 $64k $144k 63%
57471 Roscoe 546 1 $68k $79k 96%

Partly in Edmunds County

Residential ZIP codes mainly in another county that reach at least 1% into Edmunds County, by their share here
In this county
57475 Tolstoy 99 1 $88k $85k 48%
57448 Hosmer 404 2 $67k $64k 42%
57466 Onaka 192 1 $51k $39k 24%
57435 Cresbard 300 2 $98k $207k 23%
57460 Mansfield 257 2 $140k $234k 20%
57481 Westport 271 1 $68k $216k 12%
57456 Leola 670 2 $76k $75k 3%

Download the 10 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?

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

Share of each ZIP code's land in Edmunds County and in the neighboring counties
ZIPIn EdmundsElsewhere
5745192%Brown County8%
574563%McPherson County97%
5742863%Walworth County37%
5747196%McPherson County4%
5744842%McPherson County58%
5743523%Faulk County77%
5748112%Brown County56%; McPherson County31%
5746020%Brown County59%; Spink County11%; Faulk County10%
5746624%Faulk County76%
5747548%Potter County52%

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

Which first three digits do Edmunds 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 Edmunds County starts with 574.

Three-digit prefixes of Edmunds 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 Edmunds County's
PrefixSectional centerHereAll codes
574Dakota Central, SD (SCF 572)1050

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