Internet Providers in South Dakota

South Dakota has a highly concentrated broadband market (HHI: 86,171) where Starlink dominates with 100% coverage reach — 0 percentage points ahead of the next-largest provider, EchoStar at 100%. In highly concentrated markets, consumers typically see fewer promotional offers and less pressure on the leading provider to invest in network upgrades. The remaining 13 providers in South Dakota cover a fraction of addresses, limiting their competitive impact. Research from the FCC shows that markets with one dominant provider average higher monthly costs compared to markets with two or more meaningfully overlapping competitors.

Fiber availability at 64% is modestly ahead of the national average of 57%, putting South Dakota slightly ahead of the nationwide fiber buildout curve. Nationally, fiber coverage is expanding by roughly 8 percentage points per year, driven by BEAD infrastructure grants and private carrier investment from AT&T, Frontier, and Google Fiber.

Fiber-optic coverage here is above average and growing. Nationally, fiber availability has expanded by roughly 8 percentage points per year since 2022, with ISPs like AT&T, Frontier, and Google Fiber leading the rollout of high-speed internet.

South Dakota received $208 million in federal BEAD funding. The South Dakota GOED Broadband is currently in the challenge phase, which means providers and communities can dispute the FCC broadband maps that determine which locations qualify for funding — a critical step before deployment grants are awarded. The Affordable Connectivity Program (ACP) previously provided up to $30/month subsidies for eligible households, though federal funding expired in 2024. Some providers continue offering voluntary low-income discounts.

Fiber-optic internet is not yet available in South Dakota. The technology mix in South Dakota determines the range of speeds and prices residents can access for home internet service.

Despite having 15 providers, South Dakota's broadband market is highly concentrated — Starlink controls 100% of available coverage. In concentrated markets like this, consumers often see fewer promotional offers and slower infrastructure investment compared to competitive metro areas.