In Portsmouth there is 1 residential Cable provider covering 100.00% of the neighborhood. The average home can get speeds up to 1,420 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 Portsmouth, Portland, OR.
To see availability maps for all providers including fiber, cable, DSL, and more in Portsmouth, Portland, OR please click below.
Portsmouth, Portland, OR Availability Maps
Cable Internet Service Provider in Portsmouth
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 Portsmouth are not shown.
Portsmouth 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 Portsmouth is cable internet available?
Cable Internet Availability Key
Cable is available in 100.00% of Portsmouth. 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 Portsmouth above to see who has service at your home.
How fast is cable internet in Portsmouth?
The map below shows maximum cable internet speeds by area in Portsmouth.
Cable Internet Speed Key
The average Portsmouth home can get up to 1,420 Mbps on their cable internet plan. The fastest cable download speed in the neighborhood is 2,000 Mbps, which 27.47% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 72.53% 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 Portsmouth.
Cable internet speeds tend to be faster in the southeast parts of Portsmouth, and slower in the west areas of the neighborhood.
Is cable the fastest internet I can get in Portsmouth?
The fastest internet for you may vary based on where in Portsmouth you live. In general, fiber competes most often with cable in the neighborhood.
- Fiber is the fastest internet type for 78.93% of Portsmouth homes.
- Cable is fastest for 21.07% of the neighborhood.
- 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 Portsmouth homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Portsmouth, along with details on where in Portsmouth and at what speeds.
XFINITY from Comcast Cable in Portsmouth, Portland, OR
XFINITY cable coverage
About 100.00%, or 10,078 people, have XFINITY cable internet available to them in the neighborhood. The company covers the entire Portsmouth area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Portsmouth.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Portsmouth. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the neighborhood-wide average maximum speed for Portsmouth customers is up to 1,420 Mbps.
Show all download speeds
- 27.5% up to 2,000.0 Mbps
- 72.5% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Portsmouth 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 Portsmouth cable providers. XFINITY offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Portsmouth 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 94 Mbps.
Show all upload speeds
- 27.5% up to 250.0 Mbps
- 72.5% up to 35.0 Mbps
Portsmouth Cable by Area
This information is most helpful to those looking for homes or considering moving to Portsmouth or any of the areas nearby.
How does cable internet in Portsmouth compare to the rest of Portland?
Cable internet speeds in Portsmouth are much faster versus the average speeds in Portland: 0.00 Mbps in Portland versus 1,420 Mbps in the neighborhood. The city has similar cable availability compared to the neighborhood. Average cable coverage in Portland is 0.00% versus 100.00% in Portsmouth.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Portsmouth 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 neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- University Park, Portland, OR: less cable coverage, slower speeds
- Kenton, Portland, OR: equal cable coverage, faster speeds
- St. Johns, Portland, OR: less cable coverage, slower speeds
- Cathedral Park, Portland, OR: equal cable coverage, faster speeds
- Arbor Lodge, Portland, OR: equal cable coverage, slower speeds
- Overlook, Portland, OR: less cable coverage, slower speeds
- Woodlawn, Portland, OR: equal cable coverage, faster speeds
- Bridgeton, Portland, OR: less cable coverage, faster speeds
- Boise, Portland, OR: less cable coverage, faster speeds
- Esther Short, Vancouver, WA: less cable coverage, faster speeds
Neighborhoods with Similar Populations
- Capitol Hill, Salt Lake City, UT: less cable coverage, faster speeds
- Center, Portland, OR: equal cable coverage, faster speeds
- Faneuil, Brighton, MA: equal cable coverage, faster speeds
- City Center West, Philadelphia, PA: less cable coverage, faster speeds
- Clark-Fulton, Cleveland, OH: equal cable coverage, slower speeds
- Concordia, Portland, OR: less cable coverage, faster speeds
- Airport, Riverside, CA: less cable coverage, slower speeds
- Downtown Minneapolis, St. Paul, MN: less cable coverage, faster speeds
- East Rock, New Haven, CT: equal cable coverage, faster speeds
- Downtown Pasadena, Pasadena, TX: equal cable coverage, faster speeds