In South Boulder there are 2 residential Fiber providers covering 69.40% of the neighborhood. 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 Boulder, Boulder, CO.
To see availability maps for all providers including fiber, cable, DSL, and more in South Boulder, Boulder, CO please click below.
South Boulder, Boulder, CO Availability Maps
Fiber Internet Service Providers in South 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 South Boulder are not shown.
South 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 South Boulder is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 69.40% of South Boulder. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Quantum Fiber. Call one of the companies with service in South Boulder above to see who has service at your home.
How fast is fiber internet in South Boulder?
The map below shows maximum fiber internet speeds by area in South Boulder.
Fiber Internet Speed Key
The average South Boulder home can get up to 2,000 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 2,000 Mbps, which 69.40% of residents can get.
Is fiber the fastest internet I can get in South Boulder?
The fastest internet for you may vary based on where in South Boulder you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 69.40% of South Boulder homes.
- Cable is fastest for 30.55% 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 South Boulder homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in South Boulder, along with details on where in South Boulder and at what speeds.
Quantum Fiber Fiber in South Boulder, Boulder, CO
Quantum Fiber fiber coverage
About 69.40%, or 11,863 people, have Quantum Fiber fiber internet available to them in the neighborhood. The company covers the entire South Boulder area. Quantum Fiber is one of the largest internet service providers internet service providers in the US, with internet service available in much of South Boulder.
Quantum Fiber fiber download speeds
Quantum Fiber is the fastest when comparing download speeds to all other internet providers in South Boulder. Versus other fiber providers in the area, Quantum Fiber fiber is the fastest. There are no different maximum speeds throughout South Boulder. The fastest plan anyone in South Boulder can order from Quantum Fiber goes up to 2,000 Mbps, and all South Boulder customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Quantum Fiber fiber upload speeds
In South Boulder download speeds tend to be faster than than upload speeds for Quantum Fiber fiber. Compared to other ISPs, Quantum Fiber is one of the fastest where upload speeds are concerned, and the fastest compared to other South Boulder fiber providers. Quantum Fiber offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in South Boulder is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Centurylink Fiber in South Boulder, Boulder, CO
Centurylink fiber coverage
About 69.23%, or 11,835 people, have Centurylink fiber internet available to them in the neighborhood. The company covers the entire South Boulder area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of South Boulder.
Centurylink fiber download speeds
Centurylink is above average when comparing download speeds to all other internet providers in South Boulder. Versus other fiber providers in the area, Centurylink fiber is the slowest. There are 4 different maximum speeds throughout South Boulder. The fastest plan anyone in South Boulder can order from Centurylink goes up to 1,000 Mbps, the slowest package only goes up to 100 Mbps, and the neighborhood-wide average maximum speed for South Boulder customers is up to 958 Mbps.
Show all download speeds
- 57.4% up to 1,000.0 Mbps
- 40.7% up to 940.0 Mbps
- 0.4% up to 200.0 Mbps
- 1.6% up to 100.0 Mbps
Centurylink fiber upload speeds
In South Boulder download speeds tend to be faster than than upload speeds for Centurylink fiber. Compared to other ISPs, Centurylink is above average where upload speeds are concerned, and the slowest compared to other South Boulder fiber providers. Centurylink offers 4 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 South Boulder is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 100 Mbps. On average, Centurylink customers can get speeds up to 946 Mbps.
Show all upload speeds
- 57.4% up to 1,000.0 Mbps
- 39.1% up to 940.0 Mbps
- 2.0% up to 200.0 Mbps
- 1.6% up to 100.0 Mbps
South Boulder Fiber by Area
This information is most helpful to those looking for homes or considering moving to South Boulder or any of the areas nearby.
How does fiber internet in South Boulder compare to the rest of Boulder?
Fiber internet speeds in South Boulder are much faster versus the average speeds in Boulder: 0.00 Mbps in Boulder versus 2,000 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in Boulder is 0.00% versus 69.40% in South Boulder.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around South Boulder 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 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
- Southeast Boulder, Boulder, CO: less fiber coverage, slower speeds
- Colorado University, Boulder, CO: less fiber coverage, slower speeds
- Central Boulder, Boulder, CO: more fiber coverage, slower speeds
- Crossroads, Boulder, CO: less fiber coverage, slower speeds
- East Boulder, Boulder, CO: less fiber coverage, slower speeds
- Washington Village, Boulder, CO: more fiber coverage, slower speeds
- Palo Park, Boulder, CO: less fiber coverage, slower speeds
- North Boulder, Boulder, CO: less fiber coverage, slower speeds
- Walnut Grove, Broomfield, CO: less fiber coverage, similar speeds
- Brandywine, Broomfield, CO: less fiber coverage, slower speeds
Neighborhoods with Similar Populations
- Woodbury, Irvine, CA: more fiber coverage, faster speeds
- Kamms Corner, Cleveland, OH: more fiber coverage, faster speeds
- Great Bridge East, Chesapeake, VA: more fiber coverage, slower speeds
- South Evanston, Evanston, IL: less fiber coverage, slower speeds
- Cedar Hills-Cedar Mill, Portland, OR: more fiber coverage, faster speeds
- Calallen, Corpus Christi, TX: more fiber coverage, faster speeds
- Byberry, Philadelphia, PA: more fiber coverage, slower speeds
- Buffalo, Las Vegas, NV: less fiber coverage, faster speeds
- Broadmoor-Anderson Isle-Shreve Isle, Shreveport, LA: more fiber coverage, faster speeds
- Blueberry Hill-Brigadoon-Stoneybrook, Lexington, KY: more fiber coverage, faster speeds