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zipcodes.pro — STATE/SD/COUNTY/MARSHALL

Marshall County, SD ZIP codes

Marshall County, SD has 6 ZIP codes, in 6 towns: 57430, 57454, 57270, 57247, 57232 and 57421.

The county seat is Britton.

ZIP codes
6
Towns
6
County seat
Britton
County FIPS
46091
Population
4,344
Median household income
$78,156
Land area
838 sq mi

Marshall County ZIP codes by town

Britton (county seat)
57430

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.

Map of Marshall County ZIP codes

572325724757270574215743057454

The ZIP codes of Marshall 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.

Marshall County in numbers

About 4,344 people live in Marshall County, in 1,651 households, the 37th most populous of South Dakota's 66 counties. The median household income is $78,156 a year, 4% above the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $156,500 (39% below the South Dakota median), and median gross rent is $752 a month. The median age is 42.5; 25.4% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 16 minutes.

Population4,344Marshall4,344
Households1,651Marshall1,651
Median age42.5Marshall42.5South Dakota38.0US 38.9
Median household income$78,156Marshall$78,156South Dakota$75,081US $80,734
Median home value$156,500Marshall$156,500South Dakota$257,400US $332,700
Median gross rent$752Marshall$752South Dakota$946US $1,413
Bachelor's degree or higher25.4%Marshall25.4%South Dakota31.9%US 35.7%
Mean commute16.0 minMarshall16.0 minSouth Dakota17.8 minUS 26.4 min
Population density5 / sq miMarshall5 / 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 Marshall County

Largest towns in Marshall County
TownZIP codesPopulation
Britton 1 988
Langford 1 481
Veblen 1 455
Eden 1 221
Amherst 1 75
Lake City 1 40

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 Marshall County.

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

Every ZIP code in Marshall County, with figures

ZIP codes in Marshall County
ZIP City Type Population Median income Median home
57232 Eden , SD Standard 651 $93,750 $290,200
57247 Lake City , SD Standard 211 $50,455 $173,300
57270 Veblen , SD Standard 764 $77,708 $81,800
57421 Amherst , SD Standard 75 — —
57430 Britton , SD Standard 1,828 $70,484 $149,200
57454 Langford , SD Standard 732 $81,250 $155,300

Cite this page

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

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