In Merrimack County there are 5 residential Fiber providers covering 82.93% of the county. The average home can get speeds up to 1,863 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 Merrimack County, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Merrimack County, NH please click below.
Merrimack County, NH Availability Maps
Fiber Internet Service Providers in Merrimack 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 Merrimack County are not shown.
Merrimack 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 Merrimack County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 82.93% of Merrimack County. Areas in green have fiber 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 Merrimack County above to see who has service at your home.
How fast is fiber internet in Merrimack County?
The map below shows maximum fiber internet speeds by area in Merrimack County.
Fiber Internet Speed Key
The average Merrimack County home can get up to 1,863 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 8,000 Mbps, which 3.64% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 32.79% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Merrimack County.
Fiber internet speeds tend to be faster in the west parts of Merrimack County, and slower in the southwest areas of the county.
Is fiber the fastest internet I can get in Merrimack County?
The fastest internet for you may vary based on where in Merrimack County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 60.02% of Merrimack County homes.
- Cable is fastest for 38.72% 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 1.08% of Merrimack County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Merrimack County, along with details on where in Merrimack County and at what speeds.
Fidium Fiber Fiber in Merrimack County, NH
Fidium fiber coverage
About 47.46%, or 72,995 people, have Fidium fiber internet available to them in the county. The company covers the southeast, south, east, central, northwest, northeast, north, and west Merrimack County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in some of Merrimack County.
Fidium Fiber fiber download speeds
Fidium is above average when comparing download speeds to all other internet providers in Merrimack County. Versus other fiber providers in the area, Fidium fiber is below average. There are 2 different maximum speeds throughout Merrimack County. The fastest plan anyone in Merrimack County can order from Fidium goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Merrimack County customers is up to 1,961 Mbps.
Show all download speeds
- 96.1% up to 2,000.0 Mbps
- 3.9% up to 1,000.0 Mbps
Fidium Fiber fiber upload speeds
In Merrimack County download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is above average where upload speeds are concerned, and below average compared to other Merrimack County fiber providers. Fidium 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 Merrimack County is up to 2,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Fidium customers can get speeds up to 1,961 Mbps.
Show all upload speeds
- 96.1% up to 2,000.0 Mbps
- 3.9% up to 1,000.0 Mbps
Atlantic Broadband Fiber in Merrimack County, NH
Atlantic Broadband fiber coverage
About 32.75%, or 50,368 people, have Atlantic Broadband fiber internet available to them in the county. The company covers the central, east, south, north, southeast, northeast, and northwest Merrimack County area. Atlantic Broadband is a large internet service provider internet service providers in the US, with internet service available in a small portion of Merrimack County.
Atlantic Broadband fiber download speeds
Atlantic Broadband is below average when comparing download speeds to all other internet providers in Merrimack County. Versus other fiber providers in the area, Atlantic Broadband fiber is one of the slowest. There are no different maximum speeds throughout Merrimack County. The fastest plan anyone in Merrimack County can order from Atlantic Broadband goes up to 1,000 Mbps, and all Merrimack County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband fiber upload speeds
In Merrimack County download speeds tend to be equal to than upload speeds for Atlantic Broadband fiber. Compared to other ISPs, Atlantic Broadband is below average where upload speeds are concerned, and below average compared to other Merrimack County fiber providers. Atlantic Broadband offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Merrimack County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
TDS Fiber in Merrimack County, NH
TDS fiber coverage
About 24.31%, or 37,397 people, have TDS fiber internet available to them in the county. The company covers the northwest, west, southwest, east, central, north, south, and northeast Merrimack County area. TDS is a large internet service provider internet service providers in the US, with internet service available in a small portion of Merrimack County.
TDS fiber download speeds
TDS is above average when comparing download speeds to all other internet providers in Merrimack County. Versus other fiber providers in the area, TDS fiber is below average. There are 2 different maximum speeds throughout Merrimack County. The fastest plan anyone in Merrimack County can order from TDS goes up to 8,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Merrimack County customers is up to 2,039 Mbps.
Show all download speeds
- 14.8% up to 8,000.0 Mbps
- 85.2% up to 1,000.0 Mbps
TDS fiber upload speeds
In Merrimack County download speeds tend to be equal to than upload speeds for TDS fiber. Compared to other ISPs, TDS is above average where upload speeds are concerned, and below average compared to other Merrimack County fiber providers. TDS 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 Merrimack County is up to 8,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, TDS customers can get speeds up to 2,039 Mbps.
Show all upload speeds
- 14.8% up to 8,000.0 Mbps
- 85.2% up to 1,000.0 Mbps
XFINITY from Comcast Fiber in Merrimack County, NH
XFINITY fiber coverage
About 7.17%, or 11,027 people, have XFINITY fiber internet available to them in the county. The company covers the north, northeast, and east Merrimack County 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 Merrimack County.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in Merrimack County. Versus other fiber providers in the area, XFINITY fiber is below average. There are 3 different maximum speeds throughout Merrimack County. The fastest plan anyone in Merrimack County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Merrimack County customers is up to 1,114 Mbps.
Show all download speeds
- 9.5% up to 2,000.0 Mbps
- 9.9% up to 1,200.0 Mbps
- 80.7% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In Merrimack County 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 Merrimack County fiber 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 Merrimack County 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 948 Mbps.
Show all upload speeds
- 94.6% up to 1,000.0 Mbps
- 5.4% up to 35.0 Mbps
Dunbarton Telephone Company Fiber in Merrimack County, NH
Dunbarton Telephone Company fiber coverage
About 3.08%, or 4,732 people, have Dunbarton Telephone Company fiber internet available to them in the county. The company covers the south and southeast Merrimack County area. Dunbarton Telephone Company is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Merrimack County.
Dunbarton Telephone Company fiber download speeds
Dunbarton Telephone Company is below average when comparing download speeds to all other internet providers in Merrimack County. Versus other fiber providers in the area, Dunbarton Telephone Company fiber is one of the slowest. There are no different maximum speeds throughout Merrimack County. The fastest plan anyone in Merrimack County can order from Dunbarton Telephone Company goes up to 1,000 Mbps, and all Merrimack County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Dunbarton Telephone Company fiber upload speeds
In Merrimack County download speeds tend to be equal to than upload speeds for Dunbarton Telephone Company fiber. Compared to other ISPs, Dunbarton Telephone Company is below average where upload speeds are concerned, and below average compared to other Merrimack County fiber providers. Dunbarton Telephone Company offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Merrimack County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Merrimack County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Merrimack County or any of the areas nearby.
How does fiber internet in Merrimack County compare to the rest of New Hampshire?
Fiber internet speeds in Merrimack County are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 1,863 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in New Hampshire is 0.00% versus 82.93% in Merrimack County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Merrimack County 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 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
- Strafford County, NH: less fiber coverage, slower speeds
- Sullivan County, NH: less fiber coverage, faster speeds
- Washington County, NY: less fiber coverage, slower speeds
- Warren County, NY: less fiber coverage, slower speeds
- Oneida County, NY: less fiber coverage, slower speeds
- Oswego County, NY: less fiber coverage, slower speeds
- Wayne County, NY: less fiber coverage, slower speeds
- Monroe County, NY: less fiber coverage, faster speeds
- Orleans County, NY: less fiber coverage, slower speeds
- Niagara County, NY: less fiber coverage, faster speeds
Counties with Similar Populations
- Bibb County, GA: more fiber coverage, faster speeds
- Carolina Municipio, PR: less fiber coverage, slower speeds
- Catawba County, NC: less fiber coverage, faster speeds
- Citrus County, FL: less fiber coverage, slower speeds
- Cumberland County, NJ: less fiber coverage, slower speeds
- Scott County, MN: less fiber coverage, faster speeds
- Monroe County, MI: less fiber coverage, faster speeds
- Orange County, NC: less fiber coverage, faster speeds
- Ouachita Parish, LA: less fiber coverage, faster speeds
- Parker County, TX: less fiber coverage, faster speeds