In South Deerfield there are 2 residential Fiber providers covering 84.80% of the city. The average home can get speeds up to 2,000 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 Deerfield, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in South Deerfield, NH please click below.
South Deerfield, NH Availability Maps
Fiber Internet Service Providers in South Deerfield
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 Deerfield are not shown.
South Deerfield 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 Deerfield is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 84.80% of South Deerfield. Areas in green have fiber 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 South Deerfield above to see who has service at your home.
How fast is fiber internet in South Deerfield?
The map below shows maximum fiber internet speeds by area in South Deerfield.
Fiber Internet Speed Key
The average South Deerfield home can get up to 2,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 2,000 Mbps, which 84.80% of residents can get.
Is fiber the fastest internet I can get in South Deerfield?
The fastest internet for you may vary based on where in South Deerfield you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 84.80% of South Deerfield homes.
- Cable is fastest for 15.20% 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 Deerfield homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in South Deerfield, along with details on where in South Deerfield and at what speeds.
XFINITY from Comcast Fiber in South Deerfield, NH
XFINITY fiber coverage
About 70.73%, or 749 people, have XFINITY fiber internet available to them in the city. The company covers the east, central, north, and west South Deerfield area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in much of South Deerfield.
XFINITY from Comcast fiber download speeds
XFINITY is above average when comparing download speeds to all other internet providers in South Deerfield. Versus other fiber providers in the area, XFINITY fiber is the slowest. There are 2 different maximum speeds throughout South Deerfield. The fastest plan anyone in South Deerfield can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the city-wide average maximum speed for South Deerfield customers is up to 1,938 Mbps.
Show all download speeds
- 92.3% up to 2,000.0 Mbps
- 7.7% up to 1,200.0 Mbps
XFINITY from Comcast fiber upload speeds
In South Deerfield download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is above average where upload speeds are concerned, and the slowest compared to other South Deerfield fiber providers. XFINITY 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 Deerfield is up to 2,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 1,848 Mbps.
Show all upload speeds
- 92.3% up to 2,000.0 Mbps
- 7.7% up to 35.0 Mbps
Fidium Fiber Fiber in South Deerfield, NH
Fidium fiber coverage
About 64.21%, or 680 people, have Fidium fiber internet available to them in the city. The company covers the east, north, west, and southeast South Deerfield area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of South Deerfield.
Fidium Fiber fiber download speeds
Fidium is the fastest when comparing download speeds to all other internet providers in South Deerfield. Versus other fiber providers in the area, Fidium fiber is the fastest. There are no different maximum speeds throughout South Deerfield. The fastest plan anyone in South Deerfield can order from Fidium goes up to 2,000 Mbps, and all South Deerfield customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Fidium Fiber fiber upload speeds
In South Deerfield download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is the fastest where upload speeds are concerned, and the fastest compared to other South Deerfield fiber providers. Fidium offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in South Deerfield is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
South Deerfield Fiber by Area
This information is most helpful to those looking for homes or considering moving to South Deerfield or any of the areas nearby.
How does fiber internet in South Deerfield compare to the rest of New Hampshire?
Fiber internet speeds in South Deerfield are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 2,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in New Hampshire is 0.00% versus 84.80% in South Deerfield.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around South Deerfield 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
- Deerfield, NH: more fiber coverage, similar speeds
- Deerfield Parade, NH: more fiber coverage, similar speeds
- Candia Four Corners, NH: more fiber coverage, similar speeds
- Candia, NH: less fiber coverage, similar speeds
- Leavitts Hill, NH: less fiber coverage, similar speeds
- Raymond, NH: more fiber coverage, similar speeds
- Short Falls, NH: more fiber coverage, similar speeds
- Severance, NH: more fiber coverage, similar speeds
- Northwood, NH: more fiber coverage, similar speeds
- Epsom, NH: more fiber coverage, slower speeds
Cities with Similar Populations
- Brunswick, MO: less fiber coverage, slower speeds
- Cushing, MN: more fiber coverage, slower speeds
- West Chesterfield, NH: more fiber coverage, slower speeds
- White Lake, NC: less fiber coverage, slower speeds
- Bonfield, IL: less fiber coverage, slower speeds
- Wilbur Park, MO: more fiber coverage, faster speeds
- Willeyton, NC: more fiber coverage, similar speeds
- Bloomington, WI: less fiber coverage, slower speeds
- Windsor, GA: more fiber coverage, faster speeds
- Blackstock, SC: less fiber coverage, faster speeds