In Boulder there is 1 residential Cable provider covering 91.06% of the city. The average home can get speeds up to 1,449 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 Boulder, CO.
To see availability maps for all providers including fiber, cable, DSL, and more in Boulder, CO please click below.
Cable Internet Service Provider in Boulder
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 Boulder are not shown.
Boulder 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 Boulder is cable internet available?
Cable Internet Availability Key
Cable is available in 91.06% of Boulder. 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 Boulder above to see who has service at your home.
How fast is cable internet in Boulder?
The map below shows maximum cable internet speeds by area in Boulder.
Cable Internet Speed Key
The average Boulder home can get up to 1,449 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 28.39% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 62.67% 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 Boulder.
Cable internet speeds tend to be faster in the southwest parts of Boulder, and slower in the east areas of the city.
Is cable the fastest internet I can get in Boulder?
The fastest internet for you may vary based on where in Boulder you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 35.89% of Boulder homes.
- Cable is fastest for 55.57% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 2.03%.
- Satellite internet may be the only option for 6.32% of Boulder homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Boulder, along with details on where in Boulder and at what speeds.
XFINITY from Comcast Cable in Boulder, CO
XFINITY cable coverage
About 91.06%, or 108,073 people, have XFINITY cable internet available to them in the city. The company covers the entire Boulder area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Boulder.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Boulder. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Boulder. The fastest plan anyone in Boulder 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 Boulder customers is up to 1,449 Mbps.
Show all download speeds
- 31.2% up to 2,000.0 Mbps
- 68.8% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Boulder 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 Boulder 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 Boulder 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 109 Mbps.
Show all upload speeds
- 0.4% up to 2,000.0 Mbps
- 30.8% up to 250.0 Mbps
- 68.8% up to 35.0 Mbps
Boulder Cable by Area
This information is most helpful to those looking for homes or considering moving to Boulder or any of the areas nearby.
How does cable internet in Boulder compare to the rest of Colorado?
Cable internet speeds in Boulder are much faster versus the average speeds in Colorado: 0.00 Mbps in Colorado versus 1,449 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Colorado is 0.00% versus 91.06% in Boulder.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Boulder 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
- Gunbarrel, CO: more cable coverage, faster speeds
- Eldorado Springs, CO: less cable coverage, faster speeds
- Louisville, CO: more cable coverage, faster speeds
- Niwot, CO: more cable coverage, faster speeds
- Superior, CO: more cable coverage, faster speeds
- Jamestown, CO: less cable coverage, faster speeds
- Lafayette, CO: more cable coverage, faster speeds
- Erie, CO: less cable coverage, faster speeds
- Broomfield, CO: more cable coverage, faster speeds
- Longmont, CO: more cable coverage, slower speeds
Cities with Similar Populations
- Denver, CO: more cable coverage, faster speeds
- Daytona Beach, FL: more cable coverage, slower speeds
- Cordova, TN: more cable coverage, faster speeds
- Dallas, GA: more cable coverage, faster speeds
- Denham Springs, LA: more cable coverage, faster speeds
- Concord, NC: more cable coverage, slower speeds
- Compton, CA: more cable coverage, slower speeds
- Dallas, TX: less cable coverage, slower speeds
- Danbury, CT: more cable coverage, faster speeds
- Detroit, MI: more cable coverage, faster speeds