In South Deer Isle there are 8 residential internet providers covering 93.71% of the city. The average home can get speeds up to 2,000 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
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8 Internet Service Providers in South Deer Isle
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in South Deer Isle are not shown.
South Deer Isle Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Availability maps for all providers in South Deer Isle
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 93.71% of South Deer Isle. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Fidium. Now you can call companies in South Deer Isle with more confidence that they might be available.
How fast are internet speeds in South Deer Isle?
The map below shows maximum internet speeds by area in South Deer Isle.
Internet Speed Key
The average South Deer Isle home can get up to 2,000 Mbps on their internet plan. For most people, the fastest download speed in the city is 2,000 Mbps, which 93.71% of residents can get.
What type of internet should I choose in South Deer Isle?
The fastest internet for you may vary based on where in South Deer Isle you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 93.71% of South Deer Isle homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 6.29% of South Deer Isle homes.
Internet Market Health in South Deer Isle
Internet Competition Key
The map shows how competitive the South Deer Isle internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in South Deer Isle based on what connections the average home has availabile:
- Average number of internet service providers to a home: 7.0 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 4.0 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.0 (healthy)
Overall, competition is very healthy.
South Deer Isle internet customers have the ability to buy internet service from 5 to 7 different providers, depending on where they live. For different types of service, South Deer Isle homes have between 3 and 4 options. The type(s) of service available are fixed wireless, fiber, cable, and dsl, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. South Deer Isle internet customers who want faster speeds have 5 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, South Deer Isle is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in South Deer Isle, along with details on where in South Deer Isle and at what speeds.
Fidium Fiber Fiber in South Deer Isle, ME
Fidium fiber coverage
About 93.71%, or 149 people, have Fidium fiber internet available to them in the city. The company covers the entire South Deer Isle area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
Fidium Fiber fiber download speeds
Fidium is the fastest when comparing download speeds to all other internet providers in South Deer Isle. Versus other fiber providers in the area, Fidium fiber is the fastest. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from Fidium goes up to 2,000 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Fidium Fiber fiber upload speeds
In South Deer Isle download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is the fastest where upload speeds are concerned, and the fastest compared to other South Deer Isle fiber providers. Fidium offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
Spectrum Cable in South Deer Isle, ME
Spectrum cable coverage
About 93.71%, or 149 people, have Spectrum cable internet available to them in the city. The company covers the entire South Deer Isle area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
Spectrum cable download speeds
Spectrum is above average when comparing download speeds to all other internet providers in South Deer Isle. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from Spectrum goes up to 1,000 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the fastest compared to other South Deer Isle cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Fidium Fiber DSL in South Deer Isle, ME
Fidium DSL coverage
About 92.45%, or 147 people, have Fidium DSL internet available to them in the city. The company covers the entire South Deer Isle area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
Fidium Fiber DSL download speeds
Fidium is one of the slowest when comparing download speeds to all other internet providers in South Deer Isle. Versus other DSL providers in the area, Fidium DSL is the fastest. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from Fidium goes up to 10 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is one of the slowest where upload speeds are concerned, and the fastest compared to other South Deer Isle DSL providers. Fidium offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
T-Mobile Home Internet Fixed Wireless in South Deer Isle, ME
T-Mobile Home Internet fixed wireless coverage
About 93.71%, or 149 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire South Deer Isle area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in South Deer Isle. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is the fastest. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from T-Mobile Home Internet goes up to 100 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and the fastest compared to other South Deer Isle fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink Fixed Wireless in South Deer Isle, ME
EarthLink fixed wireless coverage
About 93.71%, or 149 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire South Deer Isle area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in South Deer Isle. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from EarthLink goes up to 25 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other South Deer Isle fixed wireless providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
AT&T Fixed Wireless in South Deer Isle, ME
AT&T fixed wireless coverage
About 93.71%, or 149 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire South Deer Isle area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in South Deer Isle. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from AT&T goes up to 25 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other South Deer Isle fixed wireless providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
US Cellular Fixed Wireless in South Deer Isle, ME
US Cellular fixed wireless coverage
About 92.45%, or 147 people, have US Cellular fixed wireless internet available to them in the city. The company covers the entire South Deer Isle area. US Cellular is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Deer Isle.
US Cellular fixed wireless download speeds
US Cellular is one of the slowest when comparing download speeds to all other internet providers in South Deer Isle. Versus other fixed wireless providers in the area, US Cellular fixed wireless is the slowest. There are no different maximum speeds throughout South Deer Isle. The fastest plan anyone in South Deer Isle can order from US Cellular goes up to 10 Mbps, and all South Deer Isle customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
US Cellular fixed wireless upload speeds
In South Deer Isle download speeds tend to be faster than than upload speeds for US Cellular fixed wireless. Compared to other ISPs, US Cellular is one of the slowest where upload speeds are concerned, and the slowest compared to other South Deer Isle fixed wireless providers. US Cellular offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deer Isle is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
South Deer Isle Internet by Area
This information is most helpful to those looking for homes or considering moving to South Deer Isle or any of the areas nearby.
How does internet in South Deer Isle compare to the rest of Maine?
Internet speeds in South Deer Isle are faster versus the average speeds in Maine: 1,729 Mbps in Maine versus 2,000 Mbps in the city. The state has less internet availability compared to the city. Average internet coverage in Maine is 98.93% versus 93.71% in South Deer Isle.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around South Deer Isle are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Stonington, ME: more internet coverage, slower speeds
- West Stonington, ME: more internet coverage, similar speeds
- Deer Isle, ME: more internet coverage, similar speeds
- Sunset, ME: less internet coverage, slower speeds
- Isle Au Haut, ME: more internet coverage, slower speeds
- Naskeag, ME: less internet coverage, similar speeds
- Little Deer Isle, ME: more internet coverage, similar speeds
- Pulpit Harbor, ME: more internet coverage, slower speeds
- Brooklin, ME: more internet coverage, similar speeds
- Swans Island, ME: more internet coverage, slower speeds
Cities with Similar Populations
- Osceola, SD: more internet coverage, slower speeds
- Pancake, TX: more internet coverage, slower speeds
- Pamlico, NC: more internet coverage, slower speeds
- Palermo, KS: more internet coverage, slower speeds
- Pailo, TN: more internet coverage, slower speeds
- Ozona, MS: more internet coverage, slower speeds
- Ozark Acres, AR: more internet coverage, slower speeds
- Ouaquaga, NY: more internet coverage, slower speeds
- Ouachita, AR: more internet coverage, slower speeds
- Osgood, ID: more internet coverage, slower speeds