In Carlstadt there are 3 residential Fiber providers covering 100.00% of the city. The average home can get speeds up to 2,297 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 Carlstadt, NJ.
To see availability maps for all providers including fiber, cable, DSL, and more in Carlstadt, NJ please click below.
Carlstadt, NJ Availability Maps
Fiber Internet Service Providers in Carlstadt
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 Carlstadt are not shown.
Carlstadt 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 Carlstadt is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 100.00% of Carlstadt. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Earthlink. Call one of the companies with service in Carlstadt above to see who has service at your home.
How fast is fiber internet in Carlstadt?
The map below shows maximum fiber internet speeds by area in Carlstadt.
Fiber Internet Speed Key
The average Carlstadt home can get up to 2,297 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 8,000 Mbps, which 10.50% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 33.91% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Carlstadt.
Fiber internet speeds tend to be faster in the north parts of Carlstadt, and slower in the east areas of the city.
Is fiber the fastest internet I can get in Carlstadt?
The fastest internet for you may vary based on where in Carlstadt you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 66.09% of Carlstadt homes.
- Cable is fastest for 33.91% 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 Carlstadt homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Carlstadt, along with details on where in Carlstadt and at what speeds.
EarthLink Fiber in Carlstadt, NJ
EarthLink fiber coverage
About 100.00%, or 6,372 people, have EarthLink fiber internet available to them in the city. The company covers the entire Carlstadt area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Carlstadt.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Carlstadt. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are 2 different maximum speeds throughout Carlstadt. The fastest plan anyone in Carlstadt 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 Carlstadt customers is up to 1,670 Mbps.
Show all download speeds
- 65.9% up to 2,048.0 Mbps
- 34.1% up to 940.0 Mbps
EarthLink fiber upload speeds
In Carlstadt 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 one of the slowest compared to other Carlstadt 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 Carlstadt 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 1,649 Mbps.
Show all upload speeds
- 65.9% up to 2,048.0 Mbps
- 34.1% up to 880.0 Mbps
Verizon Fiber in Carlstadt, NJ
Verizon fiber coverage
About 100.00%, or 6,372 people, have Verizon fiber internet available to them in the city. The company covers the entire Carlstadt area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Carlstadt.
Verizon fiber download speeds
Verizon is above average when comparing download speeds to all other internet providers in Carlstadt. Versus other fiber providers in the area, Verizon fiber is one of the slowest. There are 2 different maximum speeds throughout Carlstadt. The fastest plan anyone in Carlstadt 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 Carlstadt customers is up to 1,670 Mbps.
Show all download speeds
- 65.9% up to 2,048.0 Mbps
- 34.1% up to 940.0 Mbps
Verizon fiber upload speeds
In Carlstadt 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 one of the slowest compared to other Carlstadt 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 Carlstadt 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 1,649 Mbps.
Show all upload speeds
- 65.9% up to 2,048.0 Mbps
- 34.1% up to 880.0 Mbps
Optimum Fiber in Carlstadt, NJ
Optimum fiber coverage
About 10.50%, or 669 people, have Optimum fiber internet available to them in the city. The company covers the northwest and north Carlstadt area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Carlstadt.
Optimum fiber download speeds
Optimum is the fastest when comparing download speeds to all other internet providers in Carlstadt. Versus other fiber providers in the area, Optimum fiber is the fastest. There are no different maximum speeds throughout Carlstadt. The fastest plan anyone in Carlstadt can order from Optimum goes up to 8,000 Mbps, and all Carlstadt customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Optimum fiber upload speeds
In Carlstadt 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 Carlstadt fiber providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Carlstadt is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Carlstadt Fiber by Area
This information is most helpful to those looking for homes or considering moving to Carlstadt or any of the areas nearby.
How does fiber internet in Carlstadt compare to the rest of New Jersey?
Fiber internet speeds in Carlstadt are much faster versus the average speeds in New Jersey: 0.00 Mbps in New Jersey versus 2,297 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in New Jersey is 0.00% versus 100.00% in Carlstadt.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Carlstadt 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 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
- East Rutherford, NJ: less fiber coverage, slower speeds
- Wood-Ridge, NJ: less fiber coverage, faster speeds
- Wallington, NJ: less fiber coverage, slower speeds
- Rutherford, NJ: less fiber coverage, slower speeds
- Hasbrouck Heights, NJ: less fiber coverage, faster speeds
- Moonachie, NJ: equal fiber coverage, slower speeds
- Teterboro, NJ: less fiber coverage, faster speeds
- Passaic, NJ: less fiber coverage, faster speeds
- Lodi, NJ: less fiber coverage, faster speeds
- Lyndhurst, NJ: equal fiber coverage, slower speeds
Cities with Similar Populations
- New Lebanon, OH: less fiber coverage, slower speeds
- Muleshoe, TX: less fiber coverage, slower speeds
- New Hope, AL: less fiber coverage, faster speeds
- New Hartford, CT: less fiber coverage, faster speeds
- New Egypt, NJ: less fiber coverage, faster speeds
- New Carlisle, IN: less fiber coverage, slower speeds
- Nettleton, MS: less fiber coverage, slower speeds
- Neshanic Station, NJ: less fiber coverage, slower speeds
- Neptune Beach, FL: less fiber coverage, faster speeds
- Nephi, UT: less fiber coverage, slower speeds