Best Internet Providers in Sea Cliff, NY
All 4 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Sea Cliff, NY
Sea Cliff has 4 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 3 available internet technologies in Sea Cliff.
Ranks compare Sea Cliff with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Sea Cliff, NY at a Glance
Sea Cliff Internet Providers, Ranked by Coverage, Speed and Customer Ratings
EarthLink
Connection
Customer Rating
Fiber
Verizon
Connection
Customer Rating
Fiber
Fixed Wireless
Optimum
Connection
Customer Rating
Fiber
Cable
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 Sea Cliff ratings may vary and are shown below.
Who is the Best Internet Provider in Sea Cliff, NY?
T-Mobile Home Internet is the best internet provider in Sea Cliff based on New York customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, T-Mobile Home Internet had the best reviews at the local, state, and national levels versus all available providers in Sea Cliff, making it a solid recommendation among providers with reviews. T-Mobile Home Internet is an option for 99.21% of the city.
Click here to get T-Mobile Home Internet
or call 1-833-601-2935
Which Providers are Available at my Home in Sea Cliff?
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.
How Sea Cliff Compares to Places Its Size
Sea Cliff's report card score is in the top 11% and its connectivity index is in the top 1%.
| Measure | Sea Cliff | Rank among US towns of 1,000 to 9,999 people | Nassau County | New York | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 99.6% | top 11% | 99.4% | 86.4% | 71.5% | 1,056 places at 100.0% |
| Average top speed | 7,990 Mbps | top 2% | 7,817 Mbps | 4,235 Mbps | 3,486 Mbps | Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps) |
| Providers at a typical address | 5.1 | bottom 41% | 5.2 | 5.2 | 7.1 | McLendon-Chisholm, TX (14.2) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.8 | top 16% | 3.1 | 2.6 | 2.7 | St. George, GA (6.2) |
| Workers who work from home | 28% | top 4% | 16% | 15% | 15% | Indian Springs, NV (76%) |
| Homes with a computer, tablet or phone | 100% | top 1% | 97% | 95% | 96% | Tied with 514 other places at 100% |
| Homes with internet | 98% | top 3% | 95% | 91% | 91% | 115 places at 100% |
| Homes on fiber, cable or DSL | 91% | top 2% | 84% | 77% | 76% | Bunkerville, NV and Fort Myer, VA and 3 more (100%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 96% | top 2% | 88% | 80% | 81% | 12 places at 100% |
| Median household income | $182,832 | top 2% | $156,303 | $100,975 | $93,246 | 16 places at $250,001 |
| Residents in school (6th grade to college) | 14% | top 33% | 16% | 16% | 16% | University Park, PA (95%) |
Fiber reaches 99.6% of homes in Sea Cliff, against 99.4% across Nassau County and 86.4% across New York. Households in Sea Cliff are larger than the US average (2.8 people against 2.7); 28% of workers work from home (US 15%); and the median household income is $182,832 (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 Sea Cliff
Which Fiber Internet Providers are Available in Sea Cliff?
EarthLink Fiber in Sea Cliff, NY
Availability:
99.6%
Customer Rating:
(6)
Avg. Download Speed
2,150 Mbps
EarthLink offers Fiber service to 99.6% of Sea Cliff homes. Across the city, EarthLink Fiber is the only type of service available from the company, with speeds up to 2,150 Mbps, with speeds from 980 Mpbs up to 2,300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 880 and as high as 2,300, with an average of 2,139 Mbps throughout the city.
Verizon Fiber in Sea Cliff, NY
Availability:
99.6%
Customer Rating:
(453)
Avg. Download Speed
2,150 Mbps
Verizon offers Fiber service to 99.6% of Sea Cliff homes. Across the city, Verizon Fiber has speeds up to 2,150 Mbps, with speeds from 980 Mpbs up to 2,300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 880 and as high as 2,300, with an average of 2,139 Mbps throughout the city. Verizon Fiber is rated about the same as other types of internet service available in Sea Cliff from Verizon in terms of customer satisfaction.
Optimum Fiber in Sea Cliff, NY
Availability:
99.4%
Customer Rating:
(55)
Avg. Download Speed
8,000 Mbps
Optimum offers Fiber service to 99.4% of Sea Cliff homes. Across the city, Optimum Fiber has speeds up to 8,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Sea Cliff?
T-Mobile Home Internet Fixed Wireless in Sea Cliff, NY
Availability:
99.2%
Customer Rating:
(342)
Avg. Download Speed
66 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 99.2% of Sea Cliff homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 66 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 12 Mbps throughout the city.
Verizon Fixed Wireless in Sea Cliff, NY
Availability:
12.2%
Customer Rating:
(362)
Avg. Download Speed
46 Mbps
Verizon offers Fixed Wireless service to 12.2% of Sea Cliff homes. Across the city, Verizon Fixed Wireless has speeds up to 46 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 7.1 Mbps throughout the city.
Which Cable Internet Providers are Available in Sea Cliff?
Optimum Cable in Sea Cliff, NY
Availability:
99.4%
Customer Rating:
(223)
Avg. Download Speed
940 Mbps
Optimum offers Cable service to 99.4% of Sea Cliff homes. Across the city, Optimum Cable has speeds up to 940 Mbps
Which DSL Internet Providers are Available in Sea Cliff?
According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in Sea Cliff, NY.
Internet in Sea Cliff by Neighborhood and ZIP Code
Sea Cliff has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Sea Cliff
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Sea Cliff
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 11579 | 5,039 | 99.6% | 7,990 Mbps | 5.1 | B+ | 94/100 |
How Sea Cliff Compares to Nearby Places
The 10 places nearest to Sea Cliff that have their own pages are all within 3 miles. Among them, Roslyn Harbor has the most homes with fiber (100.0%) and Glen Cove the fewest (99.8%); Sea Cliff has 99.6%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Sea Cliff (this page) | 5,062 | 99.6% | 7,990 Mbps | 5.1 | B+ | 94/100 |
| Glen Cove | 29,226 | 99.8% | 7,929 Mbps | 5.1 | B+ | 66/100 |
| Port Washington | 14,298 | 99.9% | 7,912 Mbps | 5.4 | A- | 89/100 |
| Glen Head | 6,900 | 100.0% | 7,958 Mbps | 5 | B+ | 87/100 |
| Flower Hill | 4,700 | 100.0% | 7,967 Mbps | 5.1 | B+ | 88/100 |
| Port Washington North | 3,160 | 100.0% | 7,127 Mbps | 5.1 | B+ | 84/100 |
| Old Brookville | 2,002 | 100.0% | 7,891 Mbps | 5.1 | B+ | 88/100 |
| Greenvale | 1,069 | 100.0% | 8,000 Mbps | 5.5 | A- | 80/100 |
| Roslyn Harbor | 1,067 | 100.0% | 8,000 Mbps | 5.4 | A- | 64/100 |
| Glenwood Landing | 1,063 | 100.0% | 8,000 Mbps | 4.8 | B+ | 77/100 |
| Baxter Estates | 991 | 100.0% | 8,000 Mbps | 5.8 | A- | 82/100 |
Who is the Fastest Internet Provider in Sea Cliff?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Verizon. On the other hand, based on data provided by the internet providers to the FCC, Optimum should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Sea Cliff
| Optimum | 8,000 |
|---|---|
| EarthLink | 2,300 |
| Verizon | 2,300 |
| 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 Sea Cliff. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Sea Cliff Internet Providers
Based on 254 reviews from New York internet customers, T-Mobile Home Internet is the best internet service provider for Sea Cliff residents. T-Mobile Home Internet was rated at an average of 4.22 out of 5 in our report for overall customer satisfaction. Verizon wins for second-place in New York, with 3.74 out of 5 stars and 99.6% coverage in Sea Cliff.
At a national level, based on 1452 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Sea Cliff Internet Providers
The table below shows average customer ratings from customers in Sea Cliff, New York, and customers throughout the country.
| ISP / Tech Type | Sea Cliff Overall | New York Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet |  (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (140) | (816) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| Optimum | (0) | (95) | (279) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Sea Cliff
Based on data reported by Sea Cliff ISPs to the FCC, the fastest speeds in the city are available through Optimum. The company offers speeds up to 8,000 Mbps in Sea Cliff. Therefore, the average customer can get up to 8,000 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with Verizon. This indicates Verizon reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Sea Cliff Speed | New York Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (140) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| Optimum | (0) | (95) | (279) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Sea Cliff?
Of the providers in Sea Cliff, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Sea Cliff where enough of them have reviewed a provider, otherwise across New York or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet is rated 4.11 out of 5 for price, which is higher than the average across all internet providers in the country. EarthLink is rated second for affordability, with an average price rating of 2.00 out of 5.
The table below shows how customers in Sea Cliff, New York, and the United States rated the affordability of their internet service.
Rated Affordability in Sea Cliff
| ISP / Tech Type | Sea Cliff Affordability | New York Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| EarthLink | (0) |  (1) | (15) | View Plans | ||
| Verizon | (0) | (140) | (816) | View Plans | ||
| Optimum | (0) | (95) | (279) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Customer Reviews for Internet Service Providers in New York
Customer Reviews
ISPReports User
Verizon Fiber
November 13, 2026 do not buy they implemented a new interface that is user hostlie cannot forward through comercials tivo quit working avoid, avoid, avoid
ISPReports User
Fidium
October 31, 2026 Impossible to reach and very difficult to get help - never in real time.
ISPReports User
Optimum Cable
September 06, 2026 An angry resident of Glenville, NY
Spectrum Cable
July 06, 2026 Spectrum is slow, has poor customer service and also has a monopoly in my area. There is no competition. 5G internet service is not available as there is very poor cell signal at my home. Additionally, Verizon began running FiOS to my neighborhood and then stopped. I can only guess because Spectrum holds the cable franchise rights in the town of Glenville and is fighting to hold on to whatever market share they have.
A Addison, NY Customer
T-Mobile Home Internet Fixed Wireless
June 09, 2026 Rate your provider
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Which ISP Should You Choose in Sea Cliff?
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 Sea Cliff is T-Mobile Home Internet.
- The fastest internet provider should be Optimum. Considering speed for the money and reliability in speeds, Verizon may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Sea Cliff is T-Mobile Home Internet.
- Viasat, Verizon, HughesNet, and EarthLink has the broadest coverage in Sea Cliff, available to 99.6% 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.