In South Plainfield there are 4 residential Fiber providers covering 96.48% of the city. The average home can get speeds up to 2,346 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 South Plainfield, NJ.
To see availability maps for all providers including fiber, cable, DSL, and more in South Plainfield, NJ please click below.
South Plainfield, NJ Availability Maps
Fiber Internet Service Providers in South Plainfield
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 Plainfield are not shown.
South Plainfield 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 Plainfield is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 96.48% of South Plainfield. 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 South Plainfield above to see who has service at your home.
How fast is fiber internet in South Plainfield?
The map below shows maximum fiber internet speeds by area in South Plainfield.
Fiber Internet Speed Key
The average South Plainfield home can get up to 2,346 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 8,000 Mbps, which 13.25% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 43.88% 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 Plainfield.
Fiber internet speeds tend to be faster in the south parts of South Plainfield, and slower in the central areas of the city.
Is fiber the fastest internet I can get in South Plainfield?
The fastest internet for you may vary based on where in South Plainfield you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 50.88% of South Plainfield homes.
- Cable is fastest for 49.12% 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 Plainfield homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in South Plainfield, along with details on where in South Plainfield and at what speeds.
EarthLink Fiber in South Plainfield, NJ
EarthLink fiber coverage
About 95.88%, or 23,507 people, have EarthLink fiber internet available to them in the city. The company covers the entire South Plainfield area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Plainfield.
EarthLink fiber download speeds
EarthLink is below average when comparing download speeds to all other internet providers in South Plainfield. Versus other fiber providers in the area, EarthLink fiber is below average. There are 2 different maximum speeds throughout South Plainfield. The fastest plan anyone in South Plainfield 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 South Plainfield customers is up to 1,446 Mbps.
Show all download speeds
- 45.7% up to 2,048.0 Mbps
- 54.3% up to 940.0 Mbps
EarthLink fiber upload speeds
In South Plainfield 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 South Plainfield 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 South Plainfield 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 1,414 Mbps.
Show all upload speeds
- 45.7% up to 2,048.0 Mbps
- 54.3% up to 880.0 Mbps
Verizon Fiber in South Plainfield, NJ
Verizon fiber coverage
About 95.88%, or 23,507 people, have Verizon fiber internet available to them in the city. The company covers the entire South Plainfield area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Plainfield.
Verizon fiber download speeds
Verizon is below average when comparing download speeds to all other internet providers in South Plainfield. Versus other fiber providers in the area, Verizon fiber is below average. There are 2 different maximum speeds throughout South Plainfield. The fastest plan anyone in South Plainfield 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 South Plainfield customers is up to 1,446 Mbps.
Show all download speeds
- 45.7% up to 2,048.0 Mbps
- 54.3% up to 940.0 Mbps
Verizon fiber upload speeds
In South Plainfield 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 South Plainfield 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 South Plainfield 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 1,414 Mbps.
Show all upload speeds
- 45.7% up to 2,048.0 Mbps
- 54.3% up to 880.0 Mbps
Optimum Fiber in South Plainfield, NJ
Optimum fiber coverage
About 13.25%, or 3,249 people, have Optimum fiber internet available to them in the city. The company covers the south, west, northwest, southeast, east, northeast, and southwest South Plainfield 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 Plainfield.
Optimum fiber download speeds
Optimum is the fastest when comparing download speeds to all other internet providers in South Plainfield. Versus other fiber providers in the area, Optimum fiber is the fastest. There are no different maximum speeds throughout South Plainfield. The fastest plan anyone in South Plainfield can order from Optimum goes up to 8,000 Mbps, and all South Plainfield customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Optimum fiber upload speeds
In South Plainfield 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 South Plainfield fiber providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Plainfield is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
XFINITY from Comcast Fiber in South Plainfield, NJ
XFINITY fiber coverage
About 3.72%, or 913 people, have XFINITY fiber internet available to them in the city. The company covers the west, southeast, south, and southwest South Plainfield area. XFINITY 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 Plainfield.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in South Plainfield. Versus other fiber providers in the area, XFINITY fiber is the slowest. There are 3 different maximum speeds throughout South Plainfield. The fastest plan anyone in South Plainfield can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for South Plainfield customers is up to 1,259 Mbps.
Show all download speeds
- 15.3% up to 2,000.0 Mbps
- 52.7% up to 1,200.0 Mbps
- 32.0% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In South Plainfield download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other South Plainfield fiber providers. XFINITY offers 3 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 South Plainfield is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 439 Mbps.
Show all upload speeds
- 38.4% up to 1,000.0 Mbps
- 15.3% up to 250.0 Mbps
- 46.2% up to 35.0 Mbps
South Plainfield Fiber by Area
This information is most helpful to those looking for homes or considering moving to South Plainfield or any of the areas nearby.
How does fiber internet in South Plainfield compare to the rest of New Jersey?
Fiber internet speeds in South Plainfield are much faster versus the average speeds in New Jersey: 0.00 Mbps in New Jersey versus 2,346 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in New Jersey is 0.00% versus 96.48% in South Plainfield.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around South Plainfield 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
- Plainfield, NJ: more fiber coverage, slower speeds
- Piscataway, NJ: less fiber coverage, faster speeds
- North Plainfield, NJ: more fiber coverage, slower speeds
- Edison, NJ: less fiber coverage, faster speeds
- Dunellen, NJ: more fiber coverage, faster speeds
- Metuchen, NJ: less fiber coverage, faster speeds
- Watchung, NJ: less fiber coverage, faster speeds
- Middlesex, NJ: more fiber coverage, faster speeds
- Scotch Plains, NJ: less fiber coverage, slower speeds
- Fanwood, NJ: more fiber coverage, slower speeds
Cities with Similar Populations
- Springfield, TN: less fiber coverage, faster speeds
- Festus, MO: less fiber coverage, faster speeds
- Fish Hawk, FL: more fiber coverage, faster speeds
- Sheridan, WY: less fiber coverage, faster speeds
- Shippensburg, PA: less fiber coverage, faster speeds
- Silver Bell, AZ: more fiber coverage, faster speeds
- Smyrna, DE: less fiber coverage, slower speeds
- Solon, OH: less fiber coverage, faster speeds
- South Elgin, IL: more fiber coverage, faster speeds
- Farragut, TN: more fiber coverage, slower speeds