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Internet Service in South Dakota

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Internet Access in South Dakota

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Coverage by County

South Dakota Interactive SVG Map showing broadband coverage by county.



Broadband Speeds


of South Dakotans have access to broadband 100mbps or faster.


of South Dakotans have access to 1 gigabit broadband.

Wired Coverage


of South Dakotans have access to wireline service.


of South Dakotans have access to fiber-optic service.


of South Dakotans have access to cable service.


of South Dakotans have access to DSL service.

Largest Competing Providers In South Dakota

Coverage by County in South Dakota

County Name % Broadband Coverage
Aurora 72.6%
Beadle 85.7%
Bennett 90.6%
Bon Homme 77.3%
Brookings 98.0%
Brown 90.5%
Brule 100.0%
Buffalo 100.0%
Butte 95.0%
Campbell 100.0%
Charles Mix 47.8%
Clark 77.0%
Clay 78.4%
Codington 92.3%
Corson 85.6%
Custer 64.6%
Davison 94.6%
Day 83.9%
Deuel 99.9%
Dewey 86.7%
Douglas 84.1%
Edmunds 97.2%
Fall River 92.1%
Faulk 92.5%
Grant 79.5%
Gregory 92.1%
Haakon 92.8%
Hamlin 85.6%
Hand 74.7%
Hanson 82.3%
Harding 100.0%
Hughes 93.5%
Hutchinson 99.7%
Hyde 100.0%
Jackson 74.2%
Jerauld 100.0%
Jones 54.2%
Kingsbury 69.9%
Lake 90.2%
Lawrence 91.9%
Lincoln 92.0%
Lyman 82.5%
McCook 77.7%
McPherson 100.0%
Marshall 98.3%
Meade 92.0%
Mellette 60.7%
Miner 100.0%
Minnehaha 98.9%
Moody 68.2%
Pennington 95.7%
Perkins 97.0%
Potter 100.0%
Roberts 87.7%
Sanborn 100.0%
Shannon 73.3%
Spink 70.4%
Stanley 94.1%
Sully 100.0%
Todd 64.8%
Tripp 90.7%
Turner 62.5%
Union 85.6%
Walworth 100.0%
Yankton 92.7%
Ziebach 100.0%

Internet Speed in Top South Dakota Cities

City Avg. Download Speed No. of Providers
1. Sioux Falls 42.4 MBPS 15 Providers
2. Rapid City 60.4 MBPS 12 Providers
3. Aberdeen 108.2 MBPS 7 Providers
4. Watertown 64.5 MBPS 11 Providers
5. Brookings 62.8 MBPS 10 Providers

Speeds for Major Providers in South Dakota

Provider Avg. Download Speed
Mediacom Cable 138.3 MBPS
CenturyLink 37.8 MBPS
Golden West Telecommunications 16.7 MBPS
Rise Broadband 9.1 MBPS
SpeedConnect 3.3 MBPS

The State of Broadband in South Dakota, 2021

Written by the BroadbandNow team. Last updated 9/1/2020.

As the 37th most well-connected State in the US, South Dakota has both high and low points in terms of internet connectivity. At 74.5 Mbps, South Dakota has the second slowest average download speed of all the states nationwide. However, 61.9% of the state’s population has access to gigabit speeds, and 31.9% have access to fiber-optic internet services, which is higher than the national average. Coverage throughout South Dakota is relatively evenly dispersed, with the highest coverage for 25 Mbps speeds concentrated in the northwest and central parts of the state.

The Digital Divide in South Dakota

South Dakota’s digital divide - a term that constitutes the gap between those who have access to the latest telecommunications technology and those who do not - is not as marked as some states since the internet is fairly widely accessible to the majority of South Dakotans. Only one county lags far behind the others, with less than 35% of its citizens having access to a wired internet connection capable of 25 Mbps download speeds. On a statewide level, 89.4% of the population has access to this type of connection, while 84,000 of South Dakotans do not. There are 111 wired internet providers in South Dakota, but 23,000 people still do not have any wired options at their place of residence, and another 222,000 people only have access to one wired provider, leaving them limited in their choices of plans and services.

Current affordability data shows that the majority of South Dakotans (63.2%) have access to a low-priced internet plan costing equal to or less than $60 per month. This is well over the national average of 51.5% of Americans with access to the same.

Best-Connected Cities

Many areas of South Dakota experience strong coverage and high internet accessibility. However, the cities with the best connection are Sioux Falls, Howard, Garretson, Ellsworth Afb, and Black Hawk, with the highest-ranking coming first in the list. Speed tests reveal that the city of Garretson has a particularly high average download speed of 413.81 Mbps.

Worst-Connected Cities

On the other hand, South Dakota’s cities known for the worst internet connection are Saint Charles, Okaton, Milesville, Tuthill, and Trail City, with the last city ranking as the worst in the state.

Compare South Dakota’s connection to states throughout the rest of the nation here.

Governmental Initiatives

South Dakota’s Bureau of Information and Telecommunications (BIT) has been the beneficiary of over $5.7 million in federal grants for South Dakota’s Broadband Initiative, along with an additional $20,572,242 in infrastructure grants, aimed at expanding South Dakota’s broadband infrastructure.

In recent years, the current legislature has approved the initiation of a new program, Connect South Dakota. Backed by $5 million in grant money, the program is set to target underserved and unserved areas of the state, in an effort to expand broadband accessibility.

The information above has been curated from a blend of public and private datasets. Read up on our data here.

Sources: Data collected via the FCC, NTIA, and other sources. For a full list of data sources please visit our data page.

South Dakota Cities

Average speed over time
Aberdeen 97.9% 7 providers
Belle Fourche 92.8% 8 providers
Black Hawk 99.2% 9 providers
Box Elder 93.5% 11 providers
Brandon 99.6% 9 providers
Brookings 99.9% 10 providers
Canton 86.1% 12 providers
Custer 84.2% 7 providers
Dell Rapids 89.0% 11 providers
Eagle Butte 100.0% 6 providers
Harrisburg 95.9% 10 providers
Hartford 96.7% 10 providers
Hot Springs 89.5% 5 providers
Huron 91.5% 9 providers
Lead 90.9% 7 providers
Madison 88.8% 12 providers
Milbank 87.7% 8 providers
Mission 68.8% 5 providers
Mitchell 92.3% 8 providers
Mobridge 100.0% 8 providers
North Sioux City 99.1% 14 providers
Pierre 93.3% 11 providers
Pine Ridge 94.9% 6 providers
Rapid City 97.6% 12 providers
Sioux Falls 99.1% 15 providers
Sisseton 98.7% 7 providers
Spearfish 97.0% 8 providers
Sturgis 95.2% 11 providers
Tea 98.2% 11 providers
Vermillion 84.9% 8 providers
Watertown 95.3% 11 providers
Winner 86.9% 5 providers
Yankton 97.4% 9 providers
Last Updated on 9/1/2020.