In Shelter Island Heights there are 6 residential internet providers covering 99.02% of the city. The average home can get speeds up to 7,383 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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6 Internet Service Providers in Shelter Island Heights
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 Shelter Island Heights are not shown.
Shelter Island Heights 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 Shelter Island Heights
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.
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Internet service is available in 99.02% of Shelter Island Heights. 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 Optimum. Now you can call companies in Shelter Island Heights with more confidence that they might be available.
How fast are internet speeds in Shelter Island Heights?
The map below shows maximum internet speeds by area in Shelter Island Heights.
Internet Speed Key
The average Shelter Island Heights home can get up to 7,383 Mbps on their internet plan. For most people, the fastest download speed in the city is 8,000 Mbps, which 90.36% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 8.66% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Shelter Island Heights.
Internet speeds tend to be faster in the southwest parts of Shelter Island Heights, and slower in the northeast areas of the city.
What type of internet should I choose in Shelter Island Heights?
The fastest internet for you may vary based on where in Shelter Island Heights you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 90.36% of Shelter Island Heights homes.
- Cable is fastest for 8.66% 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 less than 1% of Shelter Island Heights homes.
Internet Market Health in Shelter Island Heights
Internet Competition Key
The map shows how competitive the Shelter Island Heights 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 Shelter Island Heights based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.5 (unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.9 (healthy)
- Average providers with broadband (25 Mbps+) speeds: 3.5 (unhealthy)
Overall, competition is unhealthy.
Shelter Island Heights internet customers have the ability to buy internet service from 2 to 6 different providers, depending on where they live. For different types of service, Shelter Island Heights homes have between 2 and 3 options. The type(s) of service available are cable, fixed wireless, and fiber, 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 similar. Shelter Island Heights internet customers who want faster speeds have between 2 and 6 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, Shelter Island Heights needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Shelter Island Heights, along with details on where in Shelter Island Heights and at what speeds.
Optimum Cable in Shelter Island Heights, NY
Optimum cable coverage
About 99.02%, or 1,212 people, have Optimum cable internet available to them in the city. The company covers the entire Shelter Island Heights area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Shelter Island Heights.
Optimum cable download speeds
Optimum is below average when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other cable providers in the area, Optimum cable is the fastest. There are no different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from Optimum goes up to 940 Mbps, and all Shelter Island Heights customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
Optimum cable upload speeds
In Shelter Island Heights download speeds tend to be faster than than upload speeds for Optimum cable. Compared to other ISPs, Optimum is below average where upload speeds are concerned, and the fastest compared to other Shelter Island Heights cable providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Optimum Fiber in Shelter Island Heights, NY
Optimum fiber coverage
About 90.36%, or 1,106 people, have Optimum fiber internet available to them in the city. The company covers the entire Shelter Island Heights area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Shelter Island Heights.
Optimum fiber download speeds
Optimum is the fastest when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other fiber providers in the area, Optimum fiber is the fastest. There are no different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from Optimum goes up to 8,000 Mbps, and all Shelter Island Heights customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Optimum fiber upload speeds
In Shelter Island Heights download speeds tend to be equal to than upload speeds for Optimum fiber. Compared to other ISPs, Optimum is the fastest where upload speeds are concerned, and the fastest compared to other Shelter Island Heights fiber providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
EarthLink Fiber in Shelter Island Heights, NY
EarthLink fiber coverage
About 16.75%, or 205 people, have EarthLink fiber internet available to them in the city. The company covers the central, southwest, north, and south Shelter Island Heights area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Shelter Island Heights.
EarthLink fiber download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are 2 different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from EarthLink goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for Shelter Island Heights customers is up to 1,853 Mbps.
Show all download speeds
- 82.4% up to 2,048.0 Mbps
- 17.6% up to 940.0 Mbps
EarthLink fiber upload speeds
In Shelter Island Heights download speeds tend to be faster than than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other Shelter Island Heights fiber providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, EarthLink customers can get speeds up to 1,843 Mbps.
Show all upload speeds
- 82.4% up to 2,048.0 Mbps
- 17.6% up to 880.0 Mbps
Verizon Fiber in Shelter Island Heights, NY
Verizon fiber coverage
About 16.75%, or 205 people, have Verizon fiber internet available to them in the city. The company covers the central, southwest, north, and south Shelter Island Heights area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Shelter Island Heights.
Verizon fiber download speeds
Verizon is below average when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other fiber providers in the area, Verizon fiber is one of the slowest. There are 2 different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from Verizon goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for Shelter Island Heights customers is up to 1,853 Mbps.
Show all download speeds
- 82.4% up to 2,048.0 Mbps
- 17.6% up to 940.0 Mbps
Verizon fiber upload speeds
In Shelter Island Heights download speeds tend to be faster than than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and one of the slowest compared to other Shelter Island Heights fiber providers. Verizon offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, Verizon customers can get speeds up to 1,843 Mbps.
Show all upload speeds
- 82.4% up to 2,048.0 Mbps
- 17.6% up to 880.0 Mbps
T-Mobile Home Internet Fixed Wireless in Shelter Island Heights, NY
T-Mobile Home Internet fixed wireless coverage
About 94.53%, or 1,157 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Shelter Island Heights 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 Shelter Island Heights.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is the slowest when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is the slowest. There are 2 different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Shelter Island Heights customers is up to 57 Mbps.
Show all download speeds
- 43.2% up to 100.0 Mbps
- 56.8% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Shelter Island Heights 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 the slowest where upload speeds are concerned, and the slowest compared to other Shelter Island Heights fixed wireless providers. T-Mobile Home Internet offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 10 Mbps.
Show all upload speeds
- 43.2% up to 20.0 Mbps
- 56.8% up to 3.0 Mbps
Verizon Fixed Wireless in Shelter Island Heights, NY
Verizon fixed wireless coverage
About 32.92%, or 403 people, have Verizon fixed wireless internet available to them in the city. The company covers the south, central, northeast, west, and southwest Shelter Island Heights area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Shelter Island Heights.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Shelter Island Heights. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout Shelter Island Heights. The fastest plan anyone in Shelter Island Heights can order from Verizon goes up to 300 Mbps, and all Shelter Island Heights customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Shelter Island Heights download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and the fastest compared to other Shelter Island Heights fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Shelter Island Heights is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Shelter Island Heights Internet by Area
This information is most helpful to those looking for homes or considering moving to Shelter Island Heights or any of the areas nearby.
How does internet in Shelter Island Heights compare to the rest of New York?
Internet speeds in Shelter Island Heights are much faster versus the average speeds in New York: 4,072 Mbps in New York versus 7,383 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in New York is 98.64% versus 99.02% in Shelter Island Heights.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Shelter Island Heights 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
- Shelter Island, NY: more internet coverage, faster speeds
- Dering Harbor, NY: more internet coverage, slower speeds
- Greenport West, NY: less internet coverage, faster speeds
- Greenport, NY: less internet coverage, faster speeds
- Southold, NY: more internet coverage, faster speeds
- East Marion, NY: more internet coverage, slower speeds
- North Haven, NY: more internet coverage, faster speeds
- Noyack, NY: more internet coverage, faster speeds
- Peconic, NY: more internet coverage, faster speeds
- Orient, NY: more internet coverage, faster speeds
Cities with Similar Populations
- Williford, AR: less internet coverage, slower speeds
- Barbourmeade, KY: more internet coverage, slower speeds
- Beaver Meadows, PA: more internet coverage, slower speeds
- Myton, UT: more internet coverage, slower speeds
- Morrisville, MO: more internet coverage, slower speeds
- Nakina, NC: more internet coverage, slower speeds
- Nauvoo, IL: more internet coverage, slower speeds
- Nazlini, AZ: less internet coverage, slower speeds
- Neches, TX: less internet coverage, slower speeds
- Nettie, WV: more internet coverage, slower speeds