Tripp County, South Dakota

Tripp County, South Dakota, has 5,708 residents (July 2025 estimate). Its county seat is Winner. It uses Central Time and covers 1,612 sq mi (4,176 km²) of land.

Sioux FallsRapid CityAberdeen
Tripp County in South Dakota
Gregory CountyMellette CountyTodd CountyWinnerColomeNew WittenIdealHamill
Tripp County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
5,708
Land area
1,612 sq mi (4,176 km²)
County seat or government
Winner
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$58,987 ± $5,357
Median home value
$132,900 ± $24,168
Median rent, with utilities
$820 ± $145
Homes lived in by their owners
68.4% ± 3.6 points
County type
County
Metro or micro area
Outside any metro or micro area
Water area
5.15 sq mi (13.3 km²)
State
South Dakota
County code (FIPS)
46123
Coordinates (central point)
43.349729, -99.876219

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 Tripp 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. 575804,386 people
  2. 575331,674 people
  3. 57528833 people
  4. 57544421 people
  5. 57529245 people
  6. 57541163 people
  7. 57534130 people
  8. 5758496 people

8 ZIP Code areas overlap Tripp 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.

Townships in Tripp County, largest first

  1. Lamro Township286 people
  2. Carter Township214 people
  3. Stewart Township153 people
  4. Wilson Township140 people
  5. Pleasant View Township126 people
  6. Colome Township100 people
  7. Jordan Township93 people
  8. Black Township85 people
  9. McNeely Township83 people
  10. King Township78 people
  11. Taylor Township77 people
  12. Sully Township75 people
All 43
  1. Star Prairie Township74 people
  2. Condon Township72 people
  3. Weaver Township65 people
  4. Pleasant Valley Township56 people
  5. Brunson Township52 people
  6. Star Valley Township45 people
  7. Lake Township41 people
  8. Ideal Township40 people
  9. Willow Creek Township39 people
  10. Rames Township29 people
  11. Bull Creek Township21 people
  12. Elliston Township21 people
  13. Lone Star Township20 people
  14. Rosedale Township20 people
  15. Witten Township20 people
  16. Dog Ear Township18 people
  17. Lincoln Township17 people
  18. Beaver Creek Township15 people
  19. Greenwood Township14 people
  20. Curlew Township13 people
  21. Plainview Township11 people
  22. Valley Township8 people
  23. Wortman Township8 people
  24. Banner Township0 people
  25. Holsclaw Township0 people
  26. Huggins Township0 people
  27. Irwin Township0 people
  28. Keyapaha Township0 people
  29. Lone Tree Township0 people
  30. Millboro Township0 people
  31. Roseland Township0 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in South Dakota, by county

School districts in Tripp County, largest first

  1. Winner School District 59-24,628 people
  2. Gregory School District 26-41,843 people
  3. Colome School District 59-31,150 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.

Tribal areas in Tripp County, largest first

  1. Rosebud Indian Reservation and Off-Reservation Trust Land10,180 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

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

  1. Winner, South Dakota (city)2,905 people
  2. Colome, South Dakota (city)338 people
  3. New Witten, South Dakota (town)76 people
  4. Ideal, South Dakota (CDP)40 people
  5. Hamill, South Dakota (CDP)0 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Keya Paha County, Nebraska34 mi south
  2. Gregory County, South Dakota36 mi east
  3. Lyman County, South Dakota38 mi north
  4. Todd County, South Dakota43 mi west
  5. Mellette County, South Dakota47 mi west
  6. Cherry County, Nebraska80 mi southwest

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.