May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

Where am ILOCATED

Day County, South Dakota

Day County, South Dakota, has 5,484 residents (July 2025 estimate). Its county seat is Webster. It uses Central Time and covers 1,028 sq mi (2,664 km²) of land.

Sioux FallsRapid CityAberdeen
Day County in South Dakota
WebsterWaubayEnemy SwimBristolPierpont
Day County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
5,484
Land area
1,028 sq mi (2,664 km²)
County seat or government
Webster
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$66,033 ± $11,116
Median home value
$173,600 ± $13,684
Median rent, with utilities
$660 ± $44
Homes lived in by their owners
74.6% ± 3.3 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Watertown, SD micro area and Aberdeen, SD micro area
Water area
62.6 sq mi (162 km²)
State
South Dakota
County code (FIPS)
46037
Coordinates (central point)
45.355161, -97.581430
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 Day 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. 572742,621 people
  2. 572731,165 people
  3. 57235774 people
  4. 57454732 people
  5. 57219552 people
  6. 57434506 people
  7. 57239358 people
  8. 57468279 people
  9. 57261277 people
  10. 57256238 people
  11. 57422174 people

11 ZIP Code areas overlap Day 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 Day County, largest first

  1. Waubay Township653 people
  2. Webster Township280 people
  3. Kosciusko Township229 people
  4. Grenville Township186 people
  5. Andover Township140 people
  6. Valley Township99 people
  7. Central Point Township85 people
  8. Troy Township78 people
  9. Wheatland Township74 people
  10. Independence Township71 people
  11. Kidder Township70 people
  12. Rusk Township65 people
All 28
  1. Union Township55 people
  2. Racine Township54 people
  3. York Township54 people
  4. Nutley Township52 people
  5. Egeland Township48 people
  6. Lynn Township40 people
  7. Bristol Township35 people
  8. Farmington Township28 people
  9. Morton Township28 people
  10. Homer Township24 people
  11. Highland Township23 people
  12. Oak Gulch Township19 people
  13. Raritan Township18 people
  14. Scotland Township17 people
  15. Liberty Township10 people
  16. Butler Township0 people

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

School districts in Day County, largest first

  1. Groton Area School District 06-63,664 people
  2. Webster School District 18-53,458 people
  3. Langford School District 45-51,785 people
  4. Waubay School District 18-31,170 people
  5. Waverly School District 14-5978 people
  6. Florence School District 14-1722 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 Day County, largest first

  1. Lake Traverse Reservation and Off-Reservation Trust Land11,084 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. Webster, South Dakota (city)1,896 people
  2. Waubay, South Dakota (city)337 people
  3. Enemy Swim, South Dakota (CDP)301 people
  4. Bristol, South Dakota (city)275 people
  5. Pierpont, South Dakota (town)161 people
  6. Roslyn, South Dakota (town)147 people
  7. Grenville, South Dakota (town)53 people
  8. Andover, South Dakota (town)31 people
  9. Butler, South Dakota (town)2 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Marshall County, South Dakota26 mi north
  2. Codington County, South Dakota33 mi southeast
  3. Clark County, South Dakota35 mi south
  4. Roberts County, South Dakota36 mi northeast
  5. Brown County, South Dakota41 mi northwest
  6. Grant County, South Dakota41 mi east
  7. Spink County, South Dakota47 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.