South Dakota Phone NumbersGet a South Dakota Phone Number
South Dakota's single 605 area code covers a state that has quietly become a financial services powerhouse. Sioux Falls hosts major credit card operations thanks to favorable banking laws, while Rapid City serves tourists visiting Mount Rushmore. No state income tax and business-friendly policies attract companies and residents.
910,000
Central/Mountain Time
United States
Last updated: November 30, 2025
Business in South Dakota
South Dakota offers no state income tax, low regulations, and favorable banking laws that have attracted credit card giants like Citibank and Wells Fargo to Sioux Falls. The state's trust laws draw wealth management business, while tourism around the Black Hills and Mount Rushmore supports a seasonal economy.
Why Choose Phone2 for South Dakota?
The 605 area code covers the entire state with one number. For businesses serving South Dakota's financial services industry in Sioux Falls or tourism operations near Rapid City, a local 605 number establishes instant credibility across the state.
Key Industries in South Dakota
Financial Services
Sioux Falls is a major credit card processing center for Citibank, Wells Fargo, and other banks, thanks to South Dakota's favorable usury laws.
Financial services companies use 605 numbers to connect with Sioux Falls banking operations and the state's growing financial sector.
Tourism
Mount Rushmore, the Badlands, and Deadwood draw millions of visitors annually, supporting hotels, restaurants, and attractions.
Tourism businesses use 605 numbers for reservations and guest services at Black Hills attractions and across the state.
Agriculture
South Dakota is a major producer of corn, soybeans, and beef, with agriculture remaining the foundation of the rural economy.
Agricultural businesses use 605 numbers to connect with farms, ranches, and processors across the state.
What our users are saying
We needed a dedicated takeout line. Now customers call one number, and any staff member can take the order from the floor or kitchen. Never miss an order.
Patricia Gayle
Restaurant Owner, Family Restaurant
Major Cities in South Dakota
(4 cities)Frequently Asked Questions about South Dakota
South Dakota has one area code: 605. This single code covers the entire state from Sioux Falls to Rapid City to the smallest towns.
Ready to get your South Dakota number?
Get a local business phone number with unlimited calling and SMS. 30-day money-back guarantee.