In Chelmsford there is 1 residential Cable provider covering 100.00% of the city. The average home can get speeds up to 1,758 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 Chelmsford, MA.
To see availability maps for all providers including fiber, cable, DSL, and more in Chelmsford, MA please click below.
Chelmsford, MA Availability Maps
Cable Internet Service Provider in Chelmsford
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 Chelmsford are not shown.
Chelmsford 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 Chelmsford is cable internet available?
Cable Internet Availability Key
Cable is available in 100.00% of Chelmsford. 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 Chelmsford above to see who has service at your home.
How fast is cable internet in Chelmsford?
The map below shows maximum cable internet speeds by area in Chelmsford.
Cable Internet Speed Key
The average Chelmsford home can get up to 1,758 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 69.74% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 30.26% 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 Chelmsford.
Cable internet speeds tend to be faster in the east parts of Chelmsford, and slower in the northwest areas of the city.
Is cable the fastest internet I can get in Chelmsford?
The fastest internet for you may vary based on where in Chelmsford you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 71.66% of Chelmsford homes.
- Cable is fastest for 28.34% 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 Chelmsford homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Chelmsford, along with details on where in Chelmsford and at what speeds.
XFINITY from Comcast Cable in Chelmsford, MA
XFINITY cable coverage
About 100.00%, or 26,785 people, have XFINITY cable internet available to them in the city. The company covers the entire Chelmsford area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Chelmsford.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Chelmsford. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Chelmsford. The fastest plan anyone in Chelmsford 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 Chelmsford customers is up to 1,758 Mbps.
Show all download speeds
- 69.7% up to 2,000.0 Mbps
- 30.3% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Chelmsford 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 Chelmsford cable providers. XFINITY offers 3 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 Chelmsford 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 383 Mbps.
Show all upload speeds
- 11.3% up to 2,000.0 Mbps
- 58.4% up to 250.0 Mbps
- 30.3% up to 35.0 Mbps
Chelmsford Cable by Area
This information is most helpful to those looking for homes or considering moving to Chelmsford or any of the areas nearby.
How does cable internet in Chelmsford compare to the rest of Massachusetts?
Cable internet speeds in Chelmsford are much faster versus the average speeds in Massachusetts: 0.00 Mbps in Massachusetts versus 1,758 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Massachusetts is 0.00% versus 100.00% in Chelmsford.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Chelmsford 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 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 Chelmsford, MA: less cable coverage, faster speeds
- North Billerica, MA: less cable coverage, faster speeds
- Lowell, MA: less cable coverage, faster speeds
- Westford, MA: less cable coverage, faster speeds
- Carlisle, MA: equal cable coverage, faster speeds
- Riverside, MA: equal cable coverage, faster speeds
- Billerica, MA: less cable coverage, faster speeds
- Graniteville, MA: equal cable coverage, faster speeds
- Tyngsboro, MA: less cable coverage, faster speeds
- Dracut, MA: less cable coverage, faster speeds
Cities with Similar Populations
- Red Bluff, CA: less cable coverage, slower speeds
- Lapeer, MI: less cable coverage, slower speeds
- Leisure City, FL: less cable coverage, slower speeds
- Alabaster, AL: less cable coverage, slower speeds
- Macungie, PA: less cable coverage, slower speeds
- Murrells Inlet, SC: less cable coverage, slower speeds
- Peyton, CO: less cable coverage, faster speeds
- Plum, PA: equal cable coverage, slower speeds
- Powell, TN: less cable coverage, faster speeds
- Ramsey, MN: less cable coverage, slower speeds