In Marlborough there is 1 residential DSL provider covering 24.11% of the city. The average home can get speeds up to 27 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 DSL internet providers in Marlborough, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Marlborough, NH please click below.
Marlborough, NH Availability Maps
DSL Internet Service Provider in Marlborough
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 Marlborough are not shown.
Marlborough 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 Marlborough is DSL internet available?
DSL Internet Availability Key
DSL is available in 24.11% of Marlborough. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Fidium. Call one of the companies with service in Marlborough above to see who has service at your home.
How fast is DSL internet in Marlborough?
The map below shows maximum DSL internet speeds by area in Marlborough.
DSL Internet Speed Key
The average Marlborough home can get up to 27 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 80 Mbps, which 5.88% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 18.23% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Marlborough.
DSL internet speeds tend to be faster in the west parts of Marlborough, and slower in the southeast areas of the city.
Is DSL the fastest internet I can get in Marlborough?
The fastest internet for you may vary based on where in Marlborough you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 97.89% of Marlborough homes.
- Cable is fastest for less than 1% 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 Marlborough homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Marlborough, along with details on where in Marlborough and at what speeds.
Fidium Fiber DSL in Marlborough, NH
Fidium DSL coverage
About 24.11%, or 549 people, have Fidium DSL internet available to them in the city. The company covers the west, southeast, southwest, central, northwest, and northeast Marlborough area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marlborough.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Marlborough. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 2 different maximum speeds throughout Marlborough. The fastest plan anyone in Marlborough can order from Fidium goes up to 80 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Marlborough customers is up to 27 Mbps.
Show all download speeds
- 24.4% up to 80.0 Mbps
- 75.6% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Marlborough download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and the fastest compared to other Marlborough DSL providers. Fidium 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 Marlborough is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 5.6 Mbps.
Show all upload speeds
- 24.4% up to 20.0 Mbps
- 75.6% up to 1.0 Mbps
Marlborough DSL by Area
This information is most helpful to those looking for homes or considering moving to Marlborough or any of the areas nearby.
How does DSL internet in Marlborough compare to the rest of New Hampshire?
DSL internet speeds in Marlborough are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 27 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in New Hampshire is 0.00% versus 24.11% in Marlborough.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Marlborough are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL 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
- North Swanzey, NH: more DSL coverage, slower speeds
- Troy, NH: more DSL coverage, faster speeds
- Swanzey, NH: more DSL coverage, slower speeds
- Keene, NH: more DSL coverage, slower speeds
- Harrisville, NH: less DSL coverage, slower speeds
- Sullivan, NH: more DSL coverage, faster speeds
- West Swanzey, NH: more DSL coverage, slower speeds
- Nelson, NH: more DSL coverage, faster speeds
- Dublin, NH: less DSL coverage, slower speeds
- Munsonville, NH: more DSL coverage, slower speeds
Cities with Similar Populations
- Teachey, NC: more DSL coverage, faster speeds
- Keuka Park, NY: less DSL coverage, slower speeds
- Kure Beach, NC: more DSL coverage, slower speeds
- Manson, IA: more DSL coverage, faster speeds
- Monteagle, TN: less DSL coverage, slower speeds
- Readyville, TN: more DSL coverage, faster speeds
- Sabana Seca, PR: more DSL coverage, slower speeds
- Shady Spring, WV: more DSL coverage, faster speeds
- South China, ME: more DSL coverage, faster speeds
- St. George, MO: more DSL coverage, faster speeds