South Dakota has 310 incorporated cities, towns and villages, home to 677,902 of the state’s 935,094 residents in 2025. Aria builds small business websites for companies in any of them for $89 a month, with domain, business email and hosting included and no setup fee.
No setup fee: you only pay the $89 monthly fee, after you approve your website.
The largest South Dakota cities
By population, the largest municipalities in South Dakota are Sioux Falls (213,748), Rapid City (80,589), Aberdeen (27,961), Brookings (25,355), Watertown (23,736), Yankton (15,816), Mitchell (15,756), Huron (14,607), Spearfish (14,154) and Box Elder (13,936).
South Dakota rules for a business with a website
- Corporations, LLCs and limited partnerships are registered with the South Dakota Secretary of State; the organizing record takes effect when it is delivered to and filed by that office. South Dakota Secretary of State, Division of Business Services
- South Dakota’s state sales and use tax rate is 4.2%, and municipalities add their own sales tax on top of it. South Dakota Department of Revenue
This is general information, not legal advice.
Web design in every South Dakota city
Pick your city to see local numbers, nearby towns and the South Dakota rules for a business with a website.
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A website for your South Dakota business
Website, domain, business email and hosting for $89 a month, built with your brand and published only after your approval.
- Population: U.S. Census Bureau, Vintage 2025 Population Estimates for incorporated places.
- List of municipalities: U.S. Census Bureau 2025 Gazetteer (incorporated places).