In Nassau County there are 3 residential Fiber providers covering 99.44% of the county. The average home can get speeds up to 7,820 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.
This page contains all Fiber internet providers in Nassau County, NY.
To see availability maps for all providers including fiber, cable, DSL, and more in Nassau County, NY please click below.
Nassau County, NY Availability Maps
Fiber Internet Service Providers in Nassau County
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 Nassau County are not shown.
Nassau County 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
Where in Nassau County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.44% of Nassau County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Optimum. Call one of the companies with service in Nassau County above to see who has service at your home.
How fast is fiber internet in Nassau County?
The map below shows maximum fiber internet speeds by area in Nassau County.
Fiber Internet Speed Key
The average Nassau County home can get up to 7,820 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 8,000 Mbps, which 96.57% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Nassau County.
Fiber internet speeds tend to be faster in the southwest parts of Nassau County, and slower in the central areas of the county.
Is fiber the fastest internet I can get in Nassau County?
The fastest internet for you may vary based on where in Nassau County you live. In general, satellite competes most often with fiber in the county.
- Fiber is the fastest internet type for 99.43% of Nassau County homes.
- Cable is fastest for less than 1% of the county.
- 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 Nassau County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Nassau County, along with details on where in Nassau County and at what speeds.
EarthLink Fiber in Nassau County, NY
EarthLink fiber coverage
About 99.31%, or 1,386,192 people, have EarthLink fiber internet available to them in the county. The company covers the entire Nassau County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Nassau County.
EarthLink fiber download speeds
EarthLink is average when comparing download speeds to all other internet providers in Nassau County. Versus other fiber providers in the area, EarthLink fiber is below average. There are 3 different maximum speeds throughout Nassau County. The fastest plan anyone in Nassau County can order from EarthLink goes up to 2,048 Mbps, the slowest package only goes up to 75 Mbps, and the county-wide average maximum speed for Nassau County customers is up to 1,777 Mbps.
Show all download speeds
- 75.6% up to 2,048.0 Mbps
- 24.4% up to 940.0 Mbps
- 0.0% up to 75.0 Mbps
EarthLink fiber upload speeds
In Nassau County download speeds tend to be faster than than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and below average compared to other Nassau County fiber providers. EarthLink offers 3 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Nassau County is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 75 Mbps. On average, EarthLink customers can get speeds up to 1,763 Mbps.
Show all upload speeds
- 75.6% up to 2,048.0 Mbps
- 24.4% up to 880.0 Mbps
- 0.0% up to 75.0 Mbps
Verizon Fiber in Nassau County, NY
Verizon fiber coverage
About 99.31%, or 1,386,192 people, have Verizon fiber internet available to them in the county. The company covers the entire Nassau County area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of Nassau County.
Verizon fiber download speeds
Verizon is average when comparing download speeds to all other internet providers in Nassau County. Versus other fiber providers in the area, Verizon fiber is below average. There are 3 different maximum speeds throughout Nassau County. The fastest plan anyone in Nassau County can order from Verizon goes up to 2,048 Mbps, the slowest package only goes up to 75 Mbps, and the county-wide average maximum speed for Nassau County customers is up to 1,777 Mbps.
Show all download speeds
- 75.6% up to 2,048.0 Mbps
- 24.4% up to 940.0 Mbps
- 0.0% up to 75.0 Mbps
Verizon fiber upload speeds
In Nassau County download speeds tend to be faster than than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is above average where upload speeds are concerned, and below average compared to other Nassau County fiber providers. Verizon offers 3 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Nassau County is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 75 Mbps. On average, Verizon customers can get speeds up to 1,763 Mbps.
Show all upload speeds
- 75.6% up to 2,048.0 Mbps
- 24.4% up to 880.0 Mbps
- 0.0% up to 75.0 Mbps
Optimum Fiber in Nassau County, NY
Optimum fiber coverage
About 96.57%, or 1,347,879 people, have Optimum fiber internet available to them in the county. The company covers the entire Nassau County area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Nassau County.
Optimum fiber download speeds
Optimum is the fastest when comparing download speeds to all other internet providers in Nassau County. Versus other fiber providers in the area, Optimum fiber is the fastest. There are no different maximum speeds throughout Nassau County. The fastest plan anyone in Nassau County can order from Optimum goes up to 8,000 Mbps, and all Nassau County customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Optimum fiber upload speeds
In Nassau County 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 Nassau County fiber providers. Optimum offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Nassau County is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Nassau County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Nassau County or any of the areas nearby.
How does fiber internet in Nassau County compare to the rest of New York?
Fiber internet speeds in Nassau County are much faster versus the average speeds in New York: 0.00 Mbps in New York versus 7,820 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in New York is 0.00% versus 99.44% in Nassau County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Nassau County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Queens County, NY: less fiber coverage, slower speeds
- Bronx County, NY: less fiber coverage, slower speeds
- Kings County, NY: less fiber coverage, slower speeds
- New York County, NY: less fiber coverage, slower speeds
- Hudson County, NJ: less fiber coverage, slower speeds
- Suffolk County, NY: less fiber coverage, slower speeds
- Essex County, NJ: less fiber coverage, slower speeds
- Union County, NJ: less fiber coverage, slower speeds
- Morris County, NJ: less fiber coverage, slower speeds
- Warren County, NJ: less fiber coverage, slower speeds
Counties with Similar Populations
- Clark County, NV: less fiber coverage, slower speeds
- San Bernardino County, CA: less fiber coverage, slower speeds
- King County, WA: less fiber coverage, slower speeds
- Santa Clara County, CA: less fiber coverage, slower speeds
- Alameda County, CA: less fiber coverage, slower speeds
- Allegheny County, PA: less fiber coverage, slower speeds
- Wake County, NC: less fiber coverage, slower speeds
- Montgomery County, MD: less fiber coverage, slower speeds
- Collin County, TX: less fiber coverage, slower speeds
- Contra Costa County, CA: less fiber coverage, slower speeds