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Where am ILOCATED

Walworth County, South Dakota

Walworth County, South Dakota, has 5,217 residents (July 2025 estimate). Its county seat is Selby. It uses Central Time and covers 707 sq mi (1,832 km²) of land.

Sioux FallsRapid CityAberdeen
Walworth County in South Dakota
MobridgeSelbyAkaskaGlenhamJava
Walworth County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
5,217
Land area
707 sq mi (1,832 km²)
County seat or government
Selby
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$65,026 ± $10,908
Median home value
$136,600 ± $25,815
Median rent, with utilities
$926 ± $158
Homes lived in by their owners
76.2% ± 3.5 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Aberdeen, SD micro area
Water area
37.2 sq mi (96.3 km²)
State
South Dakota
County code (FIPS)
46129
Coordinates (central point)
45.427605, -100.027856
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Walworth County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 576013,422 people
  2. 574721,165 people
  3. 57450624 people
  4. 57428567 people
  5. 57631364 people
  6. 57420260 people
  7. 57452136 people

7 ZIP Code areas overlap Walworth County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Walworth County, largest first

  1. Mobridge-Pollock School District 62-63,876 people
  2. Selby School District 62-51,915 people
  3. Hoven School District 53-21,200 people
  4. Bowdle School District 22-1571 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Mobridge, South Dakota (city)2,932 people
  2. Selby, South Dakota (city)702 people
  3. Akaska, South Dakota (town)104 people
  4. Glenham, South Dakota (town)95 people
  5. Java, South Dakota (town)78 people
  6. Lowry, South Dakota (town)1 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Campbell County, South Dakota25 mi north
  2. Potter County, South Dakota26 mi south
  3. Edmunds County, South Dakota40 mi east
  4. Dewey County, South Dakota44 mi southwest
  5. McPherson County, South Dakota47 mi northeast
  6. Corson County, South Dakota59 mi west

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.