Best Internet Providers in Clark, SD
All 3 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Clark, SD
Clark has 3 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 2 available internet technologies in Clark.
Ranks compare Clark with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Clark, SD at a Glance
Clark Internet Providers, Ranked by Coverage, Speed and Customer Ratings
ITC
Connection
Customer Rating
Fiber
Verizon
Connection
Customer Rating
Fixed Wireless
T-Mobile Home Internet
Connection
Customer Rating
Fixed Wireless
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Clark ratings may vary and are shown below.
Who is the Best Internet Provider in Clark, SD?
Interstate Telecommunications Cooperative is the best internet provider in Clark based on South Dakota customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Interstate Telecommunications Cooperative had the best reviews at the local, state, and national levels versus all available providers in Clark, making it a solid recommendation among providers with reviews. Interstate Telecommunications Cooperative is an option for 100.00% of the city.
Which Providers are Available at my Home in Clark?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Clark
How Clark Compares to Places Its Size
Clark's report card score is in the bottom 39% and its connectivity index is in the bottom 46%.
| Measure | Clark | Rank among US towns of 1,000 to 9,999 people | Clark County | South Dakota | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 100.0% | top 1% | 94.8% | 79.0% | 71.5% | Tied with 1,055 other places at 100.0% |
| Average top speed | 1,000 Mbps | bottom 35% | 985 Mbps | 2,675 Mbps | 3,486 Mbps | Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps) |
| Providers at a typical address | 1.9 | bottom 2% | 2.1 | 5.8 | 7.1 | McLendon-Chisholm, TX (14.2) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.5 | top 45% | 2.9 | 2.5 | 2.7 | St. George, GA (6.2) |
| Workers who work from home | 6% | bottom 26% | 19% | 10% | 15% | Indian Springs, NV (76%) |
| Homes with a computer, tablet or phone | 90% | bottom 23% | 91% | 94% | 96% | 515 places at 100% |
| Homes with internet | 86% | bottom 38% | 86% | 90% | 91% | 115 places at 100% |
| Homes on fiber, cable or DSL | 71% | top 38% | 73% | 76% | 76% | Bunkerville, NV and Fort Myer, VA and 3 more (100%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 71% | bottom 38% | 76% | 78% | 81% | 12 places at 100% |
| Median household income | $63,785 | bottom 31% | $73,029 | $80,420 | $93,246 | 16 places at $250,001 |
| Residents in school (6th grade to college) | 13% | top 43% | 16% | 15% | 16% | University Park, PA (95%) |
Fiber reaches 100.0% of homes in Clark, against 94.8% across Clark County and 79.0% across South Dakota. Households in Clark are smaller than the US average (2.5 people against 2.7); 6% of workers work from home (US 15%); and the median household income is $63,785 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Clark
Which Fiber Internet Providers are Available in Clark?
ITC Fiber in Clark, SD
Availability:
100.0%
Customer Rating:
(6)
Avg. Download Speed
1,000 Mbps
Interstate Telecommunications Cooperative offers Fiber service to 100.0% of Clark homes. Across the city, ITC Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Clark?
Verizon Fixed Wireless in Clark, SD
Availability:
87.0%
Customer Rating:
(362)
Avg. Download Speed
84 Mbps
Verizon offers Fixed Wireless service to 87.0% of Clark homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 84 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 9.0 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Clark, SD
Availability:
3.6%
Customer Rating:
(342)
Avg. Download Speed
100 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 3.6% of Clark homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Which Cable Internet Providers are Available in Clark?
According to the most recently submitted data by internet service providers to the FCC, there are currently no cable providers available in Clark, SD.
Which DSL Internet Providers are Available in Clark?
According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in Clark, SD.
Internet in Clark by Neighborhood and ZIP Code
Clark has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Clark
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Clark
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 57225 | 1,824 | 99.6% | 1,000 Mbps | 1.9 | C | 54/100 |
How Clark Compares to Nearby Places
The 10 places nearest to Clark that have their own pages are all within 20 miles. Among them, Vienna has the most homes with fiber (100.0%) and Raymond the fewest (76.5%); Clark has 100.0%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Clark (this page) | 1,400 | 100.0% | 1,000 Mbps | 1.9 | C | 45/100 |
| Willow Lake | 776 | 98.6% | 993 Mbps | 2.6 | C | 59/100 |
| Henry | 464 | 97.6% | 989 Mbps | 3.3 | C | 29/100 |
| Raymond | 460 | 76.5% | 998 Mbps | 1.6 | D+ | 78/100 |
| Garden City | 458 | 98.9% | 1,000 Mbps | 2.1 | C | 72/100 |
| Hazel | 391 | 99.2% | 1,000 Mbps | 2 | C | 66/100 |
| Vienna | 288 | 100.0% | 1,000 Mbps | 1.7 | C | 68/100 |
| Doland | 282 | 99.7% | 1,179 Mbps | 5.5 | B | 64/100 |
| Bradley | 204 | 98.0% | 1,000 Mbps | 1 | C | 70/100 |
| Hillside Colony | 180 | 100.0% | 1,000 Mbps | 2.2 | C | 64/100 |
| Crocker | 83 | 92.8% | 1,000 Mbps | 1.1 | C- | 72/100 |
Who is the Fastest Internet Provider in Clark?
Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from Interstate Telecommunications Cooperative.
Data Reported to FCC by ISPs: Average Maximum Available in Clark
| Interstate Telecommunications Cooperative | 1,000 |
|---|---|
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Clark. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Clark Internet Providers
Based on 8 reviews from South Dakota internet customers, Interstate Telecommunications Cooperative is the best internet service provider for Clark residents. Interstate Telecommunications Cooperative was rated at an average of 4.50 out of 5 in our report for overall customer satisfaction. Verizon wins for second-place in South Dakota, with 3.50 out of 5 stars and 87.0% coverage in Clark.
At a national level, based on 1164 national reviews for any of the providers listed above, Interstate Telecommunications Cooperative is rated higher than any other provider, with a rating of 4.50 out of 5.
Local, State, and National Ratings for all Clark Internet Providers
The table below shows average customer ratings from customers in Clark, South Dakota, and customers throughout the country.
| ISP / Tech Type | Clark Overall | South Dakota Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| ITC |  (0) | (6) | (6) | View Plans | ||
| Verizon | (0) | (2) | (816) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (0) | (342) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Clark
Based on data reported by Clark ISPs to the FCC, the fastest speeds in the city are available through Interstate Telecommunications Cooperative. The company offers speeds up to 1,000 Mbps in Clark. Therefore, the average customer can get up to 1,000 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers rated their satisfaction with internet speed highest with Interstate Telecommunications Cooperative. This indicates ITC reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Clark Speed | South Dakota Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| ITC | (0) | (6) | (6) | View Plans | ||
| Verizon | (0) | (2) | (816) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (0) | (342) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Clark?
Of the providers in Clark, customers rate Verizon the best for price. Data comes from customers rating their satisfaction with pricing: in Clark where enough of them have reviewed a provider, otherwise across South Dakota or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Verizon is rated 3.00 out of 5 for price, which is lower than the average across all internet providers in the country. Interstate Telecommunications Cooperative is rated second for affordability, with an average price rating of 3.50 out of 5.
The table below shows how customers in Clark, South Dakota, and the United States rated the affordability of their internet service.
Rated Affordability in Clark
| ISP / Tech Type | Clark Affordability | South Dakota Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| ITC | (0) | (6) | (6) | View Plans | ||
| Verizon | (0) |  (2) | (816) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (0) | (342) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Customer Reviews for Internet Service Providers in South Dakota
Customer Reviews
ISPReports User
Midco Cable
October 02, 2026 Constant outages, and a lot more expensive than other providers.
A Brookings, SD Customer
Mediacom Cable
June 05, 2026 Brian M.
Bluepeak Fiber
June 01, 2026 The installation charge was too high and there are a lot of hidden fees and taxes.
Aaron M.
AT&T Fixed Wireless
May 29, 2026 My internet provider has been very reliable and consistent. I have used it on the go in many locations and it has rarely let me down. I am a very satisfied customer of AT&T and have nothing but praise for the service provided and the price point. I would highly recommend this service to everyone I know.
Dustin B.
Midco Fixed Wireless
April 14, 2026 They have good service, but their pricing is beyond sane. Basic cable runs $60 each room so to have basic cable in my home would cost $180. FOr basic cable. Basic non Wi Fi internet starts at $60 month. It's absolutely nuts how much it costs.
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Which ISP Should You Choose in Clark?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Clark is ITC.
- The fastest internet provider should be Interstate Telecommunications Cooperative. Considering speed for the money and reliability in speeds, Interstate Telecommunications Cooperative may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Clark is Verizon.
- Viasat, Interstate Telecommunications Cooperative, and HughesNet has the broadest coverage in Clark, available to 100.0% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.