In Sullivan County there is 1 residential Cable provider covering 85.54% of the county. The average home can get speeds up to 1,461 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 Sullivan County, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Sullivan County, NH please click below.
Sullivan County, NH Availability Maps
Cable Internet Service Provider in Sullivan 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 Sullivan County are not shown.
Sullivan 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 Sullivan County is cable internet available?
Cable Internet Availability Key
Cable is available in 85.54% of Sullivan County. 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 Sullivan County above to see who has service at your home.
How fast is cable internet in Sullivan County?
The map below shows maximum cable internet speeds by area in Sullivan County.
Cable Internet Speed Key
The average Sullivan County home can get up to 1,461 Mbps on their cable internet plan. The fastest cable download speed in the county is 2,000 Mbps, which 27.93% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 57.61% of homes can only purchase plans up to 1,200 Mbps. See the internet provider details below for info about their speed and coverage in Sullivan County.
Cable internet speeds tend to be faster in the west parts of Sullivan County, and slower in the southwest areas of the county.
Is cable the fastest internet I can get in Sullivan County?
The fastest internet for you may vary based on where in Sullivan County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 57.99% of Sullivan County homes.
- Cable is fastest for 40.86% 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 Sullivan County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Sullivan County, along with details on where in Sullivan County and at what speeds.
XFINITY from Comcast Cable in Sullivan County, NH
XFINITY cable coverage
About 85.54%, or 36,835 people, have XFINITY cable internet available to them in the county. The company covers the entire Sullivan County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Sullivan County.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Sullivan County. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 1,461 Mbps.
Show all download speeds
- 32.7% up to 2,000.0 Mbps
- 67.3% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Sullivan County 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 Sullivan County cable providers. XFINITY offers 2 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 Sullivan County is up to 250 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 105 Mbps.
Show all upload speeds
- 32.7% up to 250.0 Mbps
- 67.3% up to 35.0 Mbps
Sullivan County Cable by Area
This information is most helpful to those looking for homes or considering moving to Sullivan County or any of the areas nearby.
How does cable internet in Sullivan County compare to the rest of New Hampshire?
Cable internet speeds in Sullivan County are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 1,461 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in New Hampshire is 0.00% versus 85.54% in Sullivan County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Sullivan County 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 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
- Merrimack County, NH: more cable coverage, faster speeds
- Washington County, NY: less cable coverage, slower speeds
- Strafford County, NH: more cable coverage, faster speeds
- Warren County, NY: more cable coverage, slower speeds
- York County, ME: more cable coverage, slower speeds
- Oswego County, NY: more cable coverage, slower speeds
- Orleans County, NY: more cable coverage, slower speeds
- Sanilac County, MI: less cable coverage, slower speeds
- Tuscola County, MI: less cable coverage, slower speeds
- Saginaw County, MI: more cable coverage, slower speeds
Counties with Similar Populations
- Campbell County, WY: less cable coverage, slower speeds
- Tioga County, PA: less cable coverage, faster speeds
- Chambers County, TX: less cable coverage, faster speeds
- Cayey Municipio, PR: more cable coverage, slower speeds
- Cass County, MI: less cable coverage, slower speeds
- Cass County, IN: less cable coverage, slower speeds
- Carter County, OK: less cable coverage, slower speeds
- Carroll County, NH: more cable coverage, slower speeds
- Caroline County, MD: less cable coverage, faster speeds
- Carlton County, MN: less cable coverage, slower speeds