In Sullivan County there are 14 residential internet providers covering 99.39% of the county. The average home can get speeds up to 1,987 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.
Jump to Availability Maps
14 Internet Service Providers 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
Availability maps for all providers in Sullivan County
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 99.39% of Sullivan County. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is XFINITY. Now you can call companies in Sullivan County with more confidence that they might be available.
How fast are internet speeds in Sullivan County?
The map below shows maximum internet speeds by area in Sullivan County.
Internet Speed Key
The average Sullivan County home can get up to 1,987 Mbps on their internet plan. For most people, the fastest download speed in the county is 8,000 Mbps, which 3.53% 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 10 Mbps. See the internet provider details below for info about their speed and coverage in Sullivan County.
Internet speeds tend to be faster in the northeast parts of Sullivan County, and slower in the northwest areas of the county.
What type of internet should I choose in Sullivan County?
The fastest internet for you may vary based on where in Sullivan County you live. If speed is your main concern, fiber will be the fastest internet 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.
Internet Market Health in Sullivan County
Internet Competition Key
The map shows how competitive the Sullivan County internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Sullivan County based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.0 (healthy)
- Average types of service (fiber, cable, DSL, etc): 3.2 (healthy)
- Average providers with broadband (25 Mbps+) speeds: 4.6 (unhealthy)
Overall, competition is healthy.
Sullivan County internet customers have the ability to buy internet service from 1 to 9 different providers, depending on where they live. For different types of service, Sullivan County homes have between 1 and 4 options. The type(s) of service available are fixed wireless, cable, dsl, and fiber, though these may vary depending on the region within the county.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Sullivan County internet customers who want faster speeds have between 0 and 9 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Sullivan County is doing better than most.
TV & Internet 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
Fidium Fiber DSL in Sullivan County, NH
Fidium DSL coverage
About 71.14%, or 30,636 people, have Fidium DSL internet available to them in the county. The company covers the entire Sullivan County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in much of Sullivan County.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other DSL providers in the area, Fidium DSL is average. There are 5 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Fidium goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 24 Mbps.
Show all download speeds
- 6.4% up to 100.0 Mbps
- 3.3% up to 80.0 Mbps
- 7.6% up to 60.0 Mbps
- 5.8% up to 40.0 Mbps
- 76.9% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Sullivan County 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 average compared to other Sullivan County DSL providers. Fidium offers 4 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 40 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 6.0 Mbps.
Show all upload speeds
- 6.4% up to 40.0 Mbps
- 10.1% up to 20.0 Mbps
- 6.6% up to 10.0 Mbps
- 76.9% up to 1.0 Mbps
Fidium Fiber Fiber in Sullivan County, NH
Fidium fiber coverage
About 52.69%, or 22,690 people, have Fidium fiber internet available to them in the county. The company covers the east, northeast, southwest, central, south, west, north, and southeast Sullivan County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Sullivan County.
Fidium Fiber fiber download speeds
Fidium is above average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, Fidium fiber is below average. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan 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 Sullivan County customers is up to 1,978 Mbps.
Show all download speeds
- 97.8% up to 2,000.0 Mbps
- 2.2% up to 1,000.0 Mbps
Fidium Fiber fiber upload speeds
In Sullivan 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 Sullivan 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 Sullivan 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 1,978 Mbps.
Show all upload speeds
- 97.8% up to 2,000.0 Mbps
- 2.2% up to 1,000.0 Mbps
New Hampshire Electric Co-op Fiber in Sullivan County, NH
New Hampshire Electric Co-op fiber coverage
About 5.87%, or 2,526 people, have New Hampshire Electric Co-op fiber internet available to them in the county. The company covers the south, southeast, and southwest Sullivan County area. New Hampshire Electric Co-op is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
New Hampshire Electric Co-op fiber download speeds
New Hampshire Electric Co-op is above average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, New Hampshire Electric Co-op fiber is below average. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from New Hampshire Electric Co-op goes up to 2,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
New Hampshire Electric Co-op fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for New Hampshire Electric Co-op fiber. Compared to other ISPs, New Hampshire Electric Co-op is above average where upload speeds are concerned, and below average compared to other Sullivan County fiber providers. New Hampshire Electric Co-op offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
HUB66 Fiber in Sullivan County, NH
HUB66 fiber coverage
About 3.53%, or 1,520 people, have HUB66 fiber internet available to them in the county. The company covers the northeast and north Sullivan County area. HUB66 is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
HUB66 fiber download speeds
HUB66 is the fastest when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, HUB66 fiber is the fastest. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from HUB66 goes up to 8,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
HUB66 fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for HUB66 fiber. Compared to other ISPs, HUB66 is the fastest where upload speeds are concerned, and the fastest compared to other Sullivan County fiber providers. HUB66 offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
TDS DSL in Sullivan County, NH
TDS DSL coverage
About 3.06%, or 1,316 people, have TDS DSL internet available to them in the county. The company covers the north and northeast Sullivan County area. TDS is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
TDS DSL download speeds
TDS is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other DSL providers in the area, TDS DSL is the fastest. There are 4 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from TDS goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 67 Mbps.
Show all download speeds
- 52.4% up to 100.0 Mbps
- 17.5% up to 50.0 Mbps
- 18.6% up to 25.0 Mbps
- 11.6% up to 10.0 Mbps
TDS DSL upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for TDS DSL. Compared to other ISPs, TDS is below average where upload speeds are concerned, and the fastest compared to other Sullivan County DSL providers. TDS offers 5 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 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, TDS customers can get speeds up to 12 Mbps.
Show all upload speeds
- 35.9% up to 20.0 Mbps
- 16.5% up to 15.0 Mbps
- 17.5% up to 10.0 Mbps
- 18.6% up to 5.0 Mbps
- 11.6% up to 1.0 Mbps
Granite State Communications Fiber in Sullivan County, NH
Granite State Communications fiber coverage
About 2.75%, or 1,184 people, have Granite State Communications fiber internet available to them in the county. The company covers the southeast Sullivan County area. Granite State Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
Granite State Communications fiber download speeds
Granite State Communications is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, Granite State Communications fiber is one of the slowest. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Granite State Communications goes up to 1,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Granite State Communications fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for Granite State Communications fiber. Compared to other ISPs, Granite State Communications is above average where upload speeds are concerned, and one of the slowest compared to other Sullivan County fiber providers. Granite State Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan 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
T-Mobile Home Internet Fixed Wireless in Sullivan County, NH
T-Mobile Home Internet fixed wireless coverage
About 93.23%, or 40,146 people, have T-Mobile Home Internet fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of Sullivan County.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 55 Mbps.
Show all download speeds
- 40.5% up to 100.0 Mbps
- 59.5% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and above average compared to other Sullivan County fixed wireless providers. T-Mobile Home Internet 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 9.9 Mbps.
Show all upload speeds
- 40.5% up to 20.0 Mbps
- 59.5% up to 3.0 Mbps
US Cellular Fixed Wireless in Sullivan County, NH
US Cellular fixed wireless coverage
About 85.50%, or 36,818 people, have US Cellular fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. US Cellular is one of the largest internet service providers internet service providers in the US, with internet service available in most of Sullivan County.
US Cellular fixed wireless download speeds
US Cellular is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, US Cellular fixed wireless is below average. There are 3 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from US Cellular goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 18 Mbps.
Show all download speeds
- 0.9% up to 100.0 Mbps
- 45.7% up to 25.0 Mbps
- 53.4% up to 10.0 Mbps
US Cellular fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for US Cellular fixed wireless. Compared to other ISPs, US Cellular is below average where upload speeds are concerned, and below average compared to other Sullivan County fixed wireless providers. US Cellular offers 3 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 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, US Cellular customers can get speeds up to 2.1 Mbps.
Show all upload speeds
- 0.9% up to 20.0 Mbps
- 45.7% up to 3.0 Mbps
- 53.4% up to 1.0 Mbps
VTel Wireless Fixed Wireless in Sullivan County, NH
VTel Wireless fixed wireless coverage
About 81.34%, or 35,029 people, have VTel Wireless fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. VTel Wireless is a large internet service provider internet service providers in the US, with internet service available in much of Sullivan County.
VTel Wireless fixed wireless download speeds
VTel Wireless is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, VTel Wireless fixed wireless is the slowest. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from VTel Wireless goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 17 Mbps.
Show all download speeds
- 46.2% up to 25.0 Mbps
- 53.8% up to 10.0 Mbps
VTel Wireless fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for VTel Wireless fixed wireless. Compared to other ISPs, VTel Wireless is below average where upload speeds are concerned, and the slowest compared to other Sullivan County fixed wireless providers. VTel Wireless 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 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, VTel Wireless customers can get speeds up to 1.9 Mbps.
Show all upload speeds
- 46.2% up to 3.0 Mbps
- 53.8% up to 1.0 Mbps
EarthLink Fixed Wireless in Sullivan County, NH
EarthLink fixed wireless coverage
About 46.14%, or 19,870 people, have EarthLink fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Sullivan County.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 26 Mbps.
Show all download speeds
- 1.4% up to 100.0 Mbps
- 98.6% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other Sullivan County fixed wireless providers. EarthLink 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 3.2 Mbps.
Show all upload speeds
- 1.4% up to 20.0 Mbps
- 98.6% up to 3.0 Mbps
AT&T Fixed Wireless in Sullivan County, NH
AT&T fixed wireless coverage
About 46.14%, or 19,870 people, have AT&T fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Sullivan County.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 26 Mbps.
Show all download speeds
- 1.4% up to 100.0 Mbps
- 98.6% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other Sullivan County fixed wireless providers. AT&T 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 3.2 Mbps.
Show all upload speeds
- 1.4% up to 20.0 Mbps
- 98.6% up to 3.0 Mbps
Verizon Fixed Wireless in Sullivan County, NH
Verizon fixed wireless coverage
About 22.29%, or 9,597 people, have Verizon fixed wireless internet available to them in the county. The company covers the entire Sullivan County area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Sullivan County.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Verizon goes up to 300 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and the fastest compared to other Sullivan County fixed wireless providers. Verizon offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Sullivan County Internet 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 internet in Sullivan County compare to the rest of New Hampshire?
Internet speeds in Sullivan County are comparable versus the average speeds in New Hampshire: 1,970 Mbps in New Hampshire versus 1,987 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in New Hampshire is 98.83% versus 99.39% in Sullivan County.
What zip codes have widespread internet?
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 internet service 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: less internet coverage, slower speeds
- Washington County, NY: less internet coverage, slower speeds
- Strafford County, NH: less internet coverage, slower speeds
- Warren County, NY: less internet coverage, slower speeds
- York County, ME: more internet coverage, slower speeds
- Oswego County, NY: less internet coverage, slower speeds
- Orleans County, NY: less internet coverage, slower speeds
- Sanilac County, MI: more internet coverage, slower speeds
- Tuscola County, MI: more internet coverage, slower speeds
- Saginaw County, MI: less internet coverage, slower speeds
Counties with Similar Populations
- Campbell County, WY: less internet coverage, faster speeds
- Tioga County, PA: less internet coverage, faster speeds
- Chambers County, TX: more internet coverage, faster speeds
- Cayey Municipio, PR: more internet coverage, slower speeds
- Cass County, MI: more internet coverage, faster speeds
- Cass County, IN: more internet coverage, faster speeds
- Carter County, OK: more internet coverage, faster speeds
- Carroll County, NH: more internet coverage, slower speeds
- Caroline County, MD: more internet coverage, faster speeds
- Carlton County, MN: more internet coverage, slower speeds