Receive a local area code
605
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Economic Overview
Area code 605 covers South Dakota, where key economic sectors include agriculture (corn, soybeans, cattle, hogs), tourism (Mount Rushmore, Badlands National Park), healthcare, and manufacturing. Major employers include Sanford Health, Avera Health, Citibank, and various agricultural and food processing companies. Sioux Falls, the largest city, serves as a regional financial and healthcare hub.
Geographical Overview
Area code 605 encompasses the entire state of South Dakota, including major cities such as Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, and Pierre (the state capital). It covers all 66 counties in South Dakota, from the Black Hills in the west to the prairies in the east.
Location Info
Area code 605 is one of the original area codes established in 1947 and remains the sole area code for the state of South Dakota. Its boundaries are coterminous with the state’s borders, covering all urban and rural areas within South Dakota, including notable landmarks like Mount Rushmore and the Missouri River valley.
Population Demographics
The 605 area code region is home to approximately 900,000 residents, with a population that is predominantly White, but also includes Native American communities, particularly on several reservations such as Pine Ridge and Rosebud. The population is concentrated in urban centers like Sioux Falls and Rapid City, but much of the state remains rural and sparsely populated.
Time Zone Info
The area code spans two time zones: Central Time (CT) in the eastern portion, including Sioux Falls, and Mountain Time (MT) in the western region, including Rapid City and the Black Hills.
Other Area Code Details
Area code 605 is one of the few area codes in the U.S. still covering an entire state. South Dakota’s low population density has allowed the state to retain a single area code despite decades of growth. The region is famous for its outdoor attractions, Native American heritage, and the annual Sturgis Motorcycle Rally.
