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zipcodes.pro — STATE/SD/COUNTY/WALWORTH

Walworth County, SD ZIP codes

Walworth County, SD has 4 ZIP codes, in 4 towns: 57472, 57631, 57452 and 57420. 2 more cross into it from neighbouring counties: 57450 and 57428.

The county seat is Selby.

ZIP codes
4
Partly in it
2 more
Towns
4
County seat
Selby
County FIPS
46129
Population
5,271
Median household income
$65,026
Land area
707 sq mi

Walworth County ZIP codes by town

Selby (county seat)
57472

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Walworth County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Walworth County.

Map of Walworth County ZIP codes

57420574525747257631

The ZIP codes of Walworth County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Walworth County in numbers

About 5,271 people live in Walworth County, in 2,415 households, the 34th most populous of South Dakota's 66 counties. The median household income is $65,026 a year, 13% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $136,600 (47% below the South Dakota median), and median gross rent is $926 a month. The median age is 41.7; 29.6% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 17 minutes.

Population5,271Walworth5,271
Households2,415Walworth2,415
Median age41.7Walworth41.7South Dakota38.0US 38.9
Median household income$65,026Walworth$65,026South Dakota$75,081US $80,734
Median home value$136,600Walworth$136,600South Dakota$257,400US $332,700
Median gross rent$926Walworth$926South Dakota$946US $1,413
Bachelor's degree or higher29.6%Walworth29.6%South Dakota31.9%US 35.7%
Mean commute16.7 minWalworth16.7 minSouth Dakota17.8 minUS 26.4 min
Population density7 / sq miWalworth7 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Walworth County

Largest towns in Walworth County
TownZIP codesPopulation
Selby 1 702
Akaska 1 104
Glenham 1 95
Java 1 78

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Walworth County.

Not sure you are in Walworth County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Walworth County, with figures

ZIP codes in Walworth County
ZIP City Type Population Median income Median home
57420 Akaska , SD Standard 260 $40,469 $79,000
57452 Java , SD Standard 136 $53,571 $80,700
57472 Selby , SD Standard 1,165 $61,708 $120,200
57631 Glenham , SD Standard 364 $56,827 $162,500

Cite this page

zipcodes.pro. “Walworth County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/sd/county/walworth

Underlying data is public domain or openly licensed — sources, vintages and licences.