Internet Providers in South Dakota
South Dakota residents have access to 63 internet service providers in May 2026. Statewide average download speeds reach 34.34 Mbps, with fiber, cable, 5G home, and satellite all represented across the SD market. Whether you live in a major metro or a rural county, this atlas maps every ISP serving every city in South Dakota — with verified plans, prices, and reviews.
Mon–Sat, 8am–11pm ET. Find the right ISP for any address in South Dakota.
Top Providers in South Dakota
Ranked by city coverage within the state.
| # | Provider | Connection | Top speed | From | Availability | Rating |
|---|---|---|---|---|---|---|
| 01 |  | Satellite | — | — | — | — |
| 02 |  | Satellite | — | — | — | — |
| 03 |  | Satellite | — | — | — | — |
| 04 |  | 5G Home | — | — | — | — |
| 05 |  | Fixed Wireless | — | — | — | — |
| 06 |  | 5G Home | — | — | — | — |
| 07 |  | Fixed Wireless | — | — | — | — |
| 08 |  | DSL | — | — | — | — |
| 09 |  | 5G Home | — | — | — | — |
| 10 |  | 5G Home | — | — | — | — |
| 11 |  | Cable | — | — | — | — |
| 12 |  | Fiber | — | — | — | — |
The South Dakota broadband landscape
Internet availability in South Dakota reflects the state's geography. Major cities have multiple fiber and cable providers competing on speed and price. Suburban areas typically have 2-4 options including national carriers. Rural SD households often rely on fixed wireless, satellite, or DSL — though Starlink and 5G home have dramatically improved rural options since 2023. Statewide, fiber availability sits at a growing share, with new deployments adding coverage every quarter.
Mount Rushmore is the most famous landmark in South Dakota. It's so famous that South Dakota is even called the Mount Rushmore State. This fact might make you think there's not a lot going on in South Dakota, but hey, if folks do get bored there, they've got the internet to entertain them like everybody else!
Fastest internet in South Dakota
Fiber is the fastest internet technology in South Dakota, with multi-gigabit residential plans available in select markets. Cable plans typically top out at 1.2 Gbps download. 5G Home Internet from T-Mobile and Verizon delivers 100-300 Mbps with no install. For raw speed, look for fiber from AT&T, Frontier, Verizon Fios, Google Fiber, or your local fiber co-op depending on which carrier serves your city.
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Internet for rural South Dakota
Rural South Dakota has historically been under-served, but 2026 brings more options than ever. **Starlink** offers 100-250 Mbps satellite anywhere with a clear sky view — install yourself in 30 minutes. **T-Mobile and Verizon 5G Home** require a strong cell signal but no contracts or installer visits. **Local WISPs** (wireless ISPs) cover specific SD counties with fixed-wireless point-to-point service. Federal RDOF and BEAD funds are also bringing fiber to previously unreached parts of South Dakota through 2026-2028.
Business internet in South Dakota
South Dakota businesses have access to enterprise fiber from AT&T Business, Lumen, Spectrum Business, Comcast Business, and regional fiber providers. Dedicated Internet Access (DIA) circuits with SLAs start around $300/mo for symmetrical 100 Mbps. SD-WAN and SASE solutions are widely deployed across SD commercial real estate. For small businesses and home offices, business-class cable and fiber from the consumer providers on this page typically meet the need at a 30-50% price premium over residential.
Top cities in South Dakota
Largest provider selection by city.
All 104 cities in South Dakota
Click any city to see ISPs, plans, and pricing for that location.
B (9)
C (10)
H (9)
I (1)
J (1)
M (13)
W (9)
Y (1)
South Dakota Internet FAQs
Q1How many ISPs serve South Dakota?
63 internet service providers operate across South Dakota. National carriers like AT&T, Spectrum, Xfinity, and Verizon dominate metro areas, while regional fiber co-ops and WISPs serve smaller communities.
Q2What is the fastest internet provider in South Dakota?
Fiber providers delivering 2-5 Gbps plans include AT&T Fiber, Frontier Fiber, Google Fiber (where available), and several regional carriers. Cable peaks at 1.2 Gbps download.
Q3Is fiber internet widely available in South Dakota?
Fiber footprint in South Dakota continues to grow. Major cities have strong coverage; suburban and rural availability varies significantly by carrier.
Q4What's the average internet speed in South Dakota?
The average advertised download speed across South Dakota is approximately 34 Mbps as of May 2026. Median real-world speeds may be lower depending on plan tier and time of day.
Q5Can I get internet without a contract in South Dakota?
Yes — most cable providers offer no-contract plans (with a small monthly premium), and 5G Home Internet from T-Mobile and Verizon is no-contract by default. Fiber providers are increasingly dropping contracts. Always check terms before signing.
Q6How do I find internet for a rural address in South Dakota?
For rural SD addresses, your best options are: (1) Starlink satellite if you have a clear sky view, (2) T-Mobile or Verizon 5G Home if there's a cell tower nearby, (3) local fixed-wireless WISP, or (4) Viasat / HughesNet legacy satellite. Check each option's coverage map for your exact ZIP.
Use the cities directory below to drill into South Dakota ZIP-level coverage, or browse the 63 ISPs serving SD to compare statewide. Data is refreshed monthly — last update May 2026.
Talk to our team about South Dakota ISPs.