North American Numbers
State · 1 area codes
South Dakota area codes
South Dakota is served by a single statewide area code (605) covering Sioux Falls, Rapid City and Aberdeen.
A · Metros
Major metro areas
Sioux Falls Rapid City Aberdeen
B · Directory
All South Dakota area codes
Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.
Sources
Wikipedia ↗
List of NANP area codes (secondary)
Compiled by North American Numbers, last checked 2026-09-19. How this is made.