South Dakota Area Codes
1 active area code · Sioux Falls · Population around 714,419
South Dakota has 1 active area code, serving cities like Sioux Falls, Rapid City, and Aberdeen. A single area code covers the whole state. Each code below links to its cities, carriers, timezone, and coverage map.
South Dakota Area Code Map
What area codes does South Dakota have?
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does South Dakota have?
South Dakota has 1 active area code: 605.
What is the main area code for South Dakota?
The 605 area code is among the primary area codes for South Dakota, serving Sioux Falls and surrounding communities.
What are the largest cities in South Dakota?
The largest cities in South Dakota include Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown.
What is the total population of South Dakota?
South Dakota has an estimated total population of 714,419 based on US Census PEP 2024 data.