In South River there are 2 residential Cable providers covering 100.00% of the city. The average home can get speeds up to 1,997 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 Cable internet providers in South River, NJ.
To see availability maps for all providers including fiber, cable, DSL, and more in South River, NJ please click below.
South River, NJ Availability Maps
Cable Internet Service Providers in South River
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 River are not shown.
South River 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 South River is cable internet available?
Cable Internet Availability Key
Cable is available in 100.00% of South River. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in South River above to see who has service at your home.
How fast is cable internet in South River?
The map below shows maximum cable internet speeds by area in South River.
Cable Internet Speed Key
The average South River home can get up to 1,997 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 99.70% 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 South River.
Cable internet speeds tend to be faster in the southeast parts of South River, and slower in the northeast areas of the city.
Is cable the fastest internet I can get in South River?
The fastest internet for you may vary based on where in South River you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for less than 1% of South River homes.
- Cable is fastest for 99.49% 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 South River homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in South River, along with details on where in South River and at what speeds.
XFINITY from Comcast Cable in South River, NJ
XFINITY cable coverage
About 99.70%, or 16,310 people, have XFINITY cable internet available to them in the city. The company covers the entire South River area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of South River.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in South River. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout South River. The fastest plan anyone in South River can order from XFINITY goes up to 2,000 Mbps, and all South River customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
XFINITY from Comcast cable upload speeds
In South River download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other South River cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South River is up to 250 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 250.0 Mbps
Optimum Cable in South River, NJ
Optimum cable coverage
About 2.04%, or 333 people, have Optimum cable internet available to them in the city. The company covers the northeast and east South River 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 South River.
Optimum cable download speeds
Optimum is below average when comparing download speeds to all other internet providers in South River. Versus other cable providers in the area, Optimum cable is the slowest. There are no different maximum speeds throughout South River. The fastest plan anyone in South River can order from Optimum goes up to 940 Mbps, and all South River customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
Optimum cable upload speeds
In South River 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 slowest compared to other South River cable providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South River is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
South River Cable by Area
This information is most helpful to those looking for homes or considering moving to South River or any of the areas nearby.
How does cable internet in South River compare to the rest of New Jersey?
Cable internet speeds in South River are much faster versus the average speeds in New Jersey: 0.00 Mbps in New Jersey versus 1,997 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in New Jersey is 0.00% versus 100.00% in South River.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around South River are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable 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
- Sayreville, NJ: less cable coverage, slower speeds
- East Brunswick, NJ: less cable coverage, slower speeds
- Milltown, NJ: equal cable coverage, slower speeds
- Spotswood, NJ: equal cable coverage, slower speeds
- Parlin, NJ: less cable coverage, slower speeds
- Madison Park, NJ: equal cable coverage, slower speeds
- Old Bridge, NJ: less cable coverage, slower speeds
- Highland Park, NJ: less cable coverage, slower speeds
- New Brunswick, NJ: less cable coverage, slower speeds
- Helmetta, NJ: less cable coverage, slower speeds
Cities with Similar Populations
- Fishkill, NY: less cable coverage, slower speeds
- Elkhorn, WI: less cable coverage, slower speeds
- White Plains, MD: less cable coverage, slower speeds
- White House, TN: less cable coverage, slower speeds
- White Center, WA: equal cable coverage, slower speeds
- Westwood, MA: less cable coverage, slower speeds
- West Henrietta, NY: less cable coverage, slower speeds
- West Haven, UT: less cable coverage, slower speeds
- Welby, CO: less cable coverage, faster speeds
- Fairview Park, OH: equal cable coverage, faster speeds