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zipcodes.pro — STATE/SD/COUNTY/DOUGLAS

Douglas County, SD ZIP codes

Douglas County, SD has 5 ZIP codes, in 5 towns: 57313, 57328, 57330, 57344 and 57364. 1 more crosses into it from a neighbouring county: 57366.

The county seat is Armour.

ZIP codes
5
Partly in it
1 more
Towns
5
County seat
Armour
County FIPS
46043
Population
2,828
Median household income
$86,442
Land area
432 sq mi

Douglas County ZIP codes by town

Armour (county seat)
57313

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 Douglas County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Douglas County.

Map of Douglas County ZIP codes

5731357328573305734457364

The ZIP codes of Douglas 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.

Douglas County in numbers

About 2,828 people live in Douglas County, in 1,138 households, the 49th most populous of South Dakota's 66 counties. The median household income is $86,442 a year, 15% above the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $166,900 (35% below the South Dakota median), and median gross rent is $877 a month. The median age is 42.0; 24.9% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 20 minutes.

Population2,828Douglas2,828
Households1,138Douglas1,138
Median age42.0Douglas42.0South Dakota38.0US 38.9
Median household income$86,442Douglas$86,442South Dakota$75,081US $80,734
Median home value$166,900Douglas$166,900South Dakota$257,400US $332,700
Median gross rent$877Douglas$877South Dakota$946US $1,413
Bachelor's degree or higher24.9%Douglas24.9%South Dakota31.9%US 35.7%
Mean commute19.6 minDouglas19.6 minSouth Dakota17.8 minUS 26.4 min
Population density7 / sq miDouglas7 / 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 Douglas County

Largest towns in Douglas County
TownZIP codesPopulation
Corsica 1 699
Armour 1 675
Delmont 1 183
Harrison 1 39
New Holland 1 4

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 Douglas County.

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

Every ZIP code in Douglas County, with figures

ZIP codes in Douglas County
ZIP City Type Population Median income Median home
57313 Armour , SD Standard 1,220 $89,107 $117,300
57328 Corsica , SD Standard 1,290 $86,985 $211,400
57330 Delmont , SD Standard 594 $71,563 $143,800
57344 Harrison , SD Standard 39 — $275,000
57364 New Holland , SD Standard 4 — —

Cite this page

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

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