South Dakota area code: 605 covers the whole state

The South Dakota area code is 605, and it is the only one in the state, in service since 1947.

The area code
605
Serving since
1947
Rate centre list
269
The time zone
Central and Mountain are the time zones
Forecast exhaust
2034
From another country
Dial +1 605 plus the 7-digit number

Source: NANPA exhaust projections, report on area codes and rate-centre report, dated 11/01/2026. We are not an official NANPA site.

Every place covered by 605

There are 269 rate centres, the local calling areas:

Yankton, Worthing, Woonsocket, Wood, Wolsey, Witten, Winner, Winfred, Wilmot, Wicksville, White River, White Lake, White, West Marietta, West Jasper, West Hendricks, West Hawarden, West Browns Valley, West Akron, Wessington Springs, Wessington, Wentworth, Webster, Waubay, Watertown, Wasta, Wall Lake, Wall, Wakonda, Wagner, Volga, Vivian, Viborg, Vermillion, Veblen, Valley Springs, Tyndall, Turton, Tulare, Tripp, Toronto, Tolstoy, Timber Lake, Tabor, Summit, Sturgis, Stockholm, Stickney, Springfield, Spencer, Spearfish, South Venturia, South Shore, South Scranton, South Reeder, South Nelvik, South Lidgerwood, South Ladd, South Hettinger, South Guelph, South Forman, South Forbes, South Ellendale, South Ashley, Sorum, Sisseton, Sioux Falls, Sinai, Seneca, Selby, Scotland, Salem, Roslyn, Rosholt, Rosebud, Roscoe, Revillo, Reliance, Ree Heights, Redfield, Rapid City, Quinn, Pukwana, Presho, Pollock, Platte, Plankinton, Pine Ridge, Pierre, Pierpont, Philip, Peever, Parkston, Parker, Orient, Oral, Onida, Onaka, Oldham Ramona, Oelrichs, Nunda, North Valentine, North Sioux City, North Naper, North Larchwood, North Kilgore, North Gordon, North Crookston, North Cody, North Bristow, Nisland, Newell, New Underwood, New Holland, New Effington, Murdo, Mount Vernon, Mound City, Mobridge, Mitchell, Mission, Miller, Milesville, Milbank, Midland, Menno, Mellette, Meadow, Mclaughlin, Mcintosh, Maurine, Martin, Marion, Madison, Long Valley, Long Lake, Letcher, Lesterville, Leola, Lennox, Lemmon, Lebanon, Langford, Lake Preston, Lake Norden, Lake Andes, La Plant, Kyle, Kimball, Keystone, Kennebec, Kadoka, Jefferson, Isabel, Iroquois, Irene, Ipswich, Interior, Huron, Hurley, Humboldt, Hudson, Howard, Hoven, Houghton, Hot Springs, Hosmer, Hitchcock, Hill City, Highmore, Herreid, Hermosa, Hecla, Hayti, Hayes, Hartford, Harrold, Harrisburg Tea, Groton, Gregory, Goodwin, Glenham, Gettysburg, Gary, Garretson, Gann Valley, Freeman, Frederick, Fort Thompson, Forestburg, Flyger, Florence, Flandreau, Ferney, Faulkton, Faith, Eureka, Ethan, Estelline, Enning, Emery, Elkton, Elk Point, Edgemont, East Newcastle, Eagle Butte, Dupree, Doland, Delmont, Dell Rapids, De Smet, Custer, Crooks, Cresbard, Creighton, Corsica, Conde, Columbia, Colton, Clearfield, Clear Lake, Clayton, Clark, Claremont, Claire City, Chester, Chamberlain, Centerville, Center, Cavour, Castlewood, Canton, Canova, Canistota, Camp Crook, Burke, Buffalo Gap, Buffalo, Bryant Willow Lake, Brookings Rural, Brookings, Britton, Bristol, Bridgewater, Brandt, Brandon, Bradley, Bowdle, Bonesteel, Blunt, Bison, Big Stone City, Beresford, Belvidere, Belle Fourche, Baltic, Avon, Astoria, Artesian, Armour, Arlington, Ardmore, Andover, Alsen, Alpena, Alexandria, Alcester, Academy, Aberdeen.

Where South Dakota's area code came from

In 1947, 605 was one of the first area codes, and NANPA records no split from 605.

Is a new area code coming to South Dakota?

That is years away: NANPA forecasts that 605 will have no numbers left in 2034. It ranks 21th soonest among the 51 states and DC that have such a forecast.

NANPA forecastForecast exhaust
2026.12034 3Q
2025.22033 3Q
2025.12035 3Q
2024.22031 4Q
2024.12029 2Q
2023.22027 2Q

Area codes in the states bordering South Dakota

South Dakota area code questions

Which area code does South Dakota use?

The area code is 605, covering the state from end to end.

How can I get a phone number in South Dakota?

You can get a 605 number from any provider that assigns local numbers. Compare providers by first-year cost.

For a local call in South Dakota, do I dial the area code?

Yes, you do. Local calls inside 605 use full 10-digit dialling. Long-distance calls take 1 + the 10-digit number. Calling from abroad, start by dialing +1 605.