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South Dakota: Time Zones, Counties, Cities & Map

South Dakota uses Central Time and Mountain Time. Check a city or specific point to find its local time zone.

South Dakota in the United States
Central TimeUTC-06:00 in January; UTC-05:00 in JulyMost of South Dakota · 50 of 66 countiesAmerica/Chicago
Mountain TimeUTC-07:00 in January; UTC-06:00 in July16 countiesAmerica/Denver
Sioux FallsRapid CityAberdeenBrookingsWatertown
South Dakota and its counties (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
935,094
Land area
75,808 sq mi (196,342 km²)
Water area
1,308 sq mi (3,387 km²)
State FIPS code
46
Coordinates (central point)
44.446796, -100.238176
Open this point in the location finder

These coordinates mark a central point for the area, not a street address.

Metro and micro areas in South Dakota, largest first

3 metro areas and 9 micro areas have counties in South Dakota. 2 cross into another state; their populations are for the whole area. Populations are July 2025 estimates.

  1. Sioux Falls, SD-MN Metro Area314,638 people
  2. Rapid City, SD Metro Area156,934 people
  3. Sioux City, IA-NE-SD Metro Area145,738 people
  4. Aberdeen, SD Micro Area41,583 people
  5. Brookings, SD Micro Area37,635 people
  6. Watertown, SD Micro Area29,562 people
  7. Spearfish, SD Micro Area29,459 people
  8. Mitchell, SD Micro Area25,913 people
  9. Yankton, SD Micro Area23,635 people
  10. Pierre, SD Micro Area20,588 people
  11. Huron, SD Micro Area19,624 people
  12. Vermillion, SD Micro Area15,031 people

Every metro and micro area in the US

Largest townships in South Dakota

  1. Big Sioux Township, Union County4,917 people
  2. Split Rock Township, Minnehaha County3,143 people
  3. Mapleton Township, Minnehaha County2,481 people
  4. Delapre Township, Lincoln County2,025 people
  5. Springdale Township, Lincoln County1,791 people
  6. Lincoln Township, Brown County1,598 people
  7. Medary Township, Brookings County1,452 people
  8. Goodwill Township, Roberts County1,162 people
  9. Wall Lake Township, Minnehaha County1,130 people
  10. Jefferson Township, Union County1,088 people
  11. Pelican Township, Codington County1,064 people
  12. Dayton Township, Lincoln County1,006 people

All 900 townships in South Dakota, by county

Tribal areas in South Dakota, largest first

  1. Pine Ridge Reservation18,758 people
  2. Lake Traverse Reservation and Off-Reservation Trust Land11,084 people
  3. Rosebud Indian Reservation and Off-Reservation Trust Land10,180 people
  4. Cheyenne River Reservation and Off-Reservation Trust Land7,582 people
  5. Standing Rock Reservation7,546 people
  6. Yankton Reservation6,584 people
  7. Crow Creek Reservation1,752 people
  8. Lower Brule Reservation and Off-Reservation Trust Land1,521 people
  9. Flandreau Reservation520 people
  10. Shakopee Mdewakanton Sioux Community and Off-Reservation Trust Land448 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.

Counties and equivalents, largest first

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

  1. Minnehaha County, South Dakota212,691 people
  2. Pennington County, South Dakota116,792 people
  3. Lincoln County, South Dakota77,145 people
  4. Brookings County, South Dakota37,635 people
  5. Brown County, South Dakota37,561 people
  6. Meade County, South Dakota30,711 people
  7. Codington County, South Dakota29,562 people
  8. Lawrence County, South Dakota29,459 people
  9. Yankton County, South Dakota23,635 people
  10. Davison County, South Dakota20,069 people
  11. Beadle County, South Dakota19,624 people
  12. Hughes County, South Dakota17,570 people
All 66
  1. Union County, South Dakota17,402 people
  2. Clay County, South Dakota15,031 people
  3. Oglala Lakota County, South Dakota13,338 people
  4. Lake County, South Dakota10,993 people
  5. Butte County, South Dakota10,856 people
  6. Roberts County, South Dakota10,255 people
  7. Custer County, South Dakota9,431 people
  8. Turner County, South Dakota9,314 people
  9. Charles Mix County, South Dakota9,303 people
  10. Todd County, South Dakota8,863 people
  11. Grant County, South Dakota7,534 people
  12. Fall River County, South Dakota7,467 people
  13. Hutchinson County, South Dakota7,413 people
  14. Bon Homme County, South Dakota7,244 people
  15. Hamlin County, South Dakota6,900 people
  16. Moody County, South Dakota6,632 people
  17. Spink County, South Dakota6,155 people
  18. McCook County, South Dakota5,964 people

See all 66 counties and equivalents in South Dakota, largest first

Cities, towns and communities, largest first

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

  1. Sioux Falls, South Dakota (city)201,469 people
  2. Rapid City, South Dakota (city)77,946 people
  3. Aberdeen, South Dakota (city)28,189 people
  4. Brookings, South Dakota (city)23,948 people
  5. Watertown, South Dakota (city)23,044 people
  6. Mitchell, South Dakota (city)15,649 people
  7. Yankton, South Dakota (city)15,540 people
  8. Huron, South Dakota (city)14,385 people
  9. Pierre, South Dakota (city)13,948 people
  10. Spearfish, South Dakota (city)12,930 people
  11. Box Elder, South Dakota (city)12,902 people
  12. Vermillion, South Dakota (city)11,878 people
All 485
  1. Brandon, South Dakota (city)10,996 people
  2. Harrisburg, South Dakota (city)8,519 people
  3. Sturgis, South Dakota (city)7,086 people
  4. Rapid Valley, South Dakota (CDP)6,975 people
  5. Tea, South Dakota (city)6,786 people
  6. Madison, South Dakota (city)6,094 people
  7. Belle Fourche, South Dakota (city)5,804 people
  8. Dakota Dunes, South Dakota (CDP)3,936 people
  9. Dell Rapids, South Dakota (city)3,905 people
  10. Hot Springs, South Dakota (city)3,548 people
  11. Milbank, South Dakota (city)3,525 people
  12. Hartford, South Dakota (city)3,478 people
  13. North Sioux City, South Dakota (city)3,045 people
  14. Canton, South Dakota (city)3,033 people
  15. Summerset, South Dakota (city)3,022 people
  16. Lead, South Dakota (city)3,006 people
  17. Blackhawk, South Dakota (CDP)2,934 people
  18. Mobridge, South Dakota (city)2,932 people

See all 485 cities, towns and communities in South Dakota, largest first

ZIP Code areas, largest first

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

  1. ZIP 5710651,907 people
  2. ZIP 5770145,795 people
  3. ZIP 5770235,595 people
  4. ZIP 5710335,582 people
  5. ZIP 5710833,966 people
  6. ZIP 5740131,939 people
  7. ZIP 5710426,963 people
  8. ZIP 5720126,781 people
  9. ZIP 5700624,192 people
  10. ZIP 5711023,313 people
  11. ZIP 5710523,287 people
  12. ZIP 5707820,383 people
All 401
  1. ZIP 5730119,104 people
  2. ZIP 5770318,013 people
  3. ZIP 5750117,326 people
  4. ZIP 5778317,248 people
  5. ZIP 5735016,199 people
  6. ZIP 5706913,091 people
  7. ZIP 5710712,605 people
  8. ZIP 5700512,290 people
  9. ZIP 5771912,221 people
  10. ZIP 5778510,874 people
  11. ZIP 5703210,467 people
  12. ZIP 577178,983 people
  13. ZIP 570648,032 people
  14. ZIP 570497,962 people
  15. ZIP 577187,937 people
  16. ZIP 570427,756 people
  17. ZIP 693376,466 people
  18. ZIP 577475,839 people

See all 401 ZIP Code areas in South Dakota, largest first

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 state 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.