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zipcodes.pro — STATE/SD/COUNTY/CAMPBELL

Campbell County, SD ZIP codes

Campbell County, SD has 2 ZIP codes, in 2 towns: 57632 and 57646. 4 more cross into it from neighbouring counties.

The county seat is Mound City.

ZIP codes
2
Partly in it
4 more
Towns
2
County seat
Mound City
County FIPS
46021
Population
1,593
Median household income
$68,929
Land area
734 sq mi

Campbell County ZIP codes by town

Mound City (county seat)
57646

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 Campbell County

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

Map of Campbell County ZIP codes

5763257646

The ZIP codes of Campbell 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.

Campbell County in numbers

About 1,593 people live in Campbell County, in 754 households, the 62nd most populous of South Dakota's 66 counties. The median household income is $68,929 a year, 8% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $115,900 (55% below the South Dakota median), and median gross rent is $760 a month. The median age is 50.9; 36.0% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 16 minutes.

Population1,593Campbell1,593
Households754Campbell754
Median age50.9Campbell50.9South Dakota38.0US 38.9
Median household income$68,929Campbell$68,929South Dakota$75,081US $80,734
Median home value$115,900Campbell$115,900South Dakota$257,400US $332,700
Median gross rent$760Campbell$760South Dakota$946US $1,413
Bachelor's degree or higher36.0%Campbell36.0%South Dakota31.9%US 35.7%
Mean commute15.5 minCampbell15.5 minSouth Dakota17.8 minUS 26.4 min
Population density2 / sq miCampbell2 / 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 Campbell County

Largest towns in Campbell County
TownZIP codesPopulation
Herreid 1 560
Mound City 1 90

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 Campbell County.

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

Every ZIP code in Campbell County, with figures

ZIP codes in Campbell County
ZIP City Type Population Median income Median home
57632 Herreid , SD Standard 757 $81,719 $108,800
57646 Mound City , SD Standard 272 $101,406 $113,300

Cite this page

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

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