10 Best Internet Providers in South Boulder, Boulder, CO
Find internet availability by address in South Boulder, Boulder, CO
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | South Boulder ISP Report Card | Business Internet in South Boulder
| South Boulder ISP Report Card | B | |
| Download Speed for Most Households | 1,880 Mbps | |
| Number of Internet Service Providers | 10 | |
| Real South Boulder Customer Ratings | 0 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
South Boulder has 10 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in South Boulder.
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South Boulder has 10 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in South Boulder.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
Centurylink
Connection
Customer Rating
Fiber
DSL
Quantum Fiber
Connection
Customer Rating
Fiber
EarthLink
Connection
Customer Rating
Fixed Wireless
Above are the top 4 providers in South Boulder, Boulder, CO for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your neighborhood.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local South Boulder ratings may vary and are shown below.
Who is the Best Internet Provider in South Boulder, Boulder, CO?
Verizon is the best internet provider in South Boulder based on Boulder customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Verizon had the best reviews at the local, state, and national levels versus all available providers in South Boulder, making it a solid recommendation among providers with reviews. Verizon is an option for 70.13% of the neighborhood.
or call 1-833-213-7018
The chart and table below show average customer ratings from customers in South Boulder, Colorado, and customers throughout the country.
Top Rated Internet Providers in South Boulder
Local, State, and National Ratings for all South Boulder Internet Providers
| ISP / Tech Type | South Boulder Overall | Colorado Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (4) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| XFINITY | (0) | (107) | (2164) | View Plans | ||
| Centurylink | (0) | (13) | (163) | View Plans | ||
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
Based on 139 reviews from Boulder internet customers, Verizon is the best internet service provider for South Boulder residents. Verizon was rated at an average of 4.00 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Boulder, with 3.50 out of 5 stars and 95.9% coverage in South Boulder.
At a national level, based on 4359 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.04 out of 5.
Which Providers are Available at my Home in South Boulder?
a different provider.

Internet Availability Key
Speeds and coverage vary within the neighborhood, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in South Boulder?
According to unbiased feedback from real internet customers in the neighborhood, they reported being happiest with speeds provided by Verizon. On the other hand, based on data provided by the internet providers to the FCC, Quantum Fiber should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in South Boulder
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Quantum Fiber | 2,000 Mbps | ||
| XFINITY from Comcast | 2,000 Mbps | ||
| Ayva Networks | 1,000 Mbps | ||
| Centurylink | 1,000 Mbps | ||
| Verizon | 300 Mbps | ||
| Live Wire Networks | 250 Mbps | ||
| Rise Broadband | 100 Mbps | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in South Boulder
| ISP / Tech Type | South Boulder Speed | Colorado Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (4) | (723) | View Plans | ||
| XFINITY | (0) | (107) | (2164) | View Plans | ||
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| Centurylink | (0) | (13) | (163) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
Based on data reported by South Boulder ISPs to the FCC, the fastest speeds in the neighborhood are available through Quantum Fiber. The company offers speeds up to 2,000 Mbps in South Boulder. Therefore, the average customer can get up to 2,000 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the neighborhood rated their satisfaction with internet speed highest with Verizon. This indicates Verizon reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in South Boulder?
Boulder customers rate Quantum Fiber as the cheapest internet service provider in city. Data comes from customers in the city rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Quantum Fiber received a local rating of 4.00 out of 5, which is lower than the average across all internet providers in the country. Centurylink is rated in second place for affordability by the company’s South Boulder customers with an average price rating of 3.31 out of 5.
The chart and graph below show how customers in South Boulder, Boulder, and the United States rated the affordability of their internet service.
Rated Affordability in South Boulder
| ISP / Tech Type | South Boulder Affordability | Colorado Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| Centurylink | (0) | (13) | (163) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| XFINITY | (0) | (107) | (2164) | View Plans | ||
| Verizon | (0) | (4) | (723) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
South Boulder Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the neighborhood and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for South Boulder below, including the metrics used and how South Boulder compares to the rest of Boulder and nation.
| Metric
(hover for details)
|
South Boulder | Colorado | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in South Boulder that have a Fiber internet connection available to their home. | 69.40% | 47.05% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 1,880 Mbps | 1,665 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for South Boulder. | 8.1 | 7.8 | 6.8 |
| Average Household SizeA larger household size in a neighborhood indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.4 | 2.4 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 40% | 33% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 99% | 98% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 95% | 94% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 90% | 85% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 90% | 91% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
South Boulder ISP Report Card & Digital Connectivity Index
The ISP Report Card in South Boulder is B, which is much better than other neighborhoods. The local demand for broadband internet connectivity in South Boulder is high with a score of 83 / 100 in our Digital Connectivity Index. This means that internet service providers operating in South Boulder have done a great job meeting the needs of its residents.
The South Boulder ISP Report Card evaluates the neighborhood on availability and speed metrics compared to other neighborhoods in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a neighborhood needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
95% of South Boulder households have an internet connection despite having 99.95% availability. 90% of households have fiber, cable, or DSL, 2% have satellite, 0% are still on dial-up, and 2% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 90% of households have a broadband connection such as fiber, cable or DSL available to their home, 90% subscribe to it. A very large amount of South Boulder residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Neighborhoods Compare to South Boulder?
- ISP Report Card: B-
- Digital Connectivity Index: 73 / 100
- ISP Report Card: B
- Digital Connectivity Index: 93 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 81 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 67 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 76 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 81 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 69 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 76 / 100
- ISP Report Card: C
- Digital Connectivity Index: 87 / 100
How Much Speed does a South Boulder Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in South Boulder is 2.4, which is larger than the Boulder average of 2.4 and smaller than the national average of 2.7. South Boulder's average household income is $141,459 which is much higher than the Boulder average of $99,728 and much higher than the national average of $90,606. Homes with fewer people living in them and with higher incomes tend to indicate a fairly average device usage pattern.
South Boulder also has 22% of its population enrolled in school between the 6th grade and college level, this is lower than the Boulder average of 35%. Additionally, 40% of residents work from home, which is higher than the 33% of residents in Boulder who work from home. This and other factors you can see above show us that the community of South Boulder has a very high need for internet connectivity and speeds.
Compared to the rest of the country, South Boulder households are much more technology-engaged. 99% of households have some sort of computing device, 98% have desktops or laptops in the home, and 97% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in South Boulder?
Quantum Fiber in South Boulder, Boulder, CO
Quantum Fiber offers Fiber service to 69.4% of South Boulder homes. Across the neighborhood, Quantum Fiber is the only type of service available from the company, with speeds up to 2,000 Mbps
Centurylink Fiber in South Boulder, Boulder, CO
Centurylink offers Fiber service to 69.2% of South Boulder homes. Across the neighborhood, Centurylink Fiber has speeds up to 958 Mbps, with speeds from 100 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 100 and as high as 1,000, with an average of 946 Mbps throughout the neighborhood. Centurylink Fiber is rated higher than other types of internet service available in South Boulder from Centurylink in terms of customer satisfaction.
Which Cable Internet Providers are Available in South Boulder?
XFINITY Cable in South Boulder, Boulder, CO
XFINITY from Comcast offers Cable service to 100.0% of South Boulder homes. Across the neighborhood, XFINITY Cable is the only type of service available from the company, with speeds up to 1,530 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 250, with an average of 124 Mbps throughout the neighborhood.
Which DSL Internet Providers are Available in South Boulder?
Centurylink DSL in South Boulder, Boulder, CO
Centurylink offers DSL service to 71.0% of South Boulder homes. Across the neighborhood, Centurylink DSL has speeds up to 66 Mbps, with speeds from 10 Mpbs up to 140 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 100, with an average of 8.2 Mbps throughout the neighborhood. Centurylink DSL is rated lower than other types of internet service available in South Boulder from Centurylink in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in South Boulder?
Ayva Fixed Wireless in South Boulder, Boulder, CO
Ayva Networks offers Fixed Wireless service to 99.5% of South Boulder homes. Across the neighborhood, Ayva Fixed Wireless is the only type of service available from the company, with speeds up to 1,000 Mbps
Live Wire Networks Fixed Wireless in South Boulder, Boulder, CO
Live Wire Networks offers Fixed Wireless service to 99.4% of South Boulder homes. Across the neighborhood, Live Wire Networks Fixed Wireless is the only type of service available from the company, with speeds up to 250 Mbps
T-Mobile Home Internet Fixed Wireless in South Boulder, Boulder, CO
T-Mobile Home Internet offers Fixed Wireless service to 95.9% of South Boulder homes. Across the neighborhood, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 71 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 13 Mbps throughout the neighborhood.
Verizon Fixed Wireless in South Boulder, Boulder, CO
Verizon offers Fixed Wireless service to 70.1% of South Boulder homes. Across the neighborhood, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
EarthLink Fixed Wireless in South Boulder, Boulder, CO
EarthLink offers Fixed Wireless service to 47.8% of South Boulder homes. Across the neighborhood, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 42 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.9 Mbps throughout the neighborhood.
AT&T Fixed Wireless in South Boulder, Boulder, CO
AT&T offers Fixed Wireless service to 47.8% of South Boulder homes. Across the neighborhood, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 42 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.9 Mbps throughout the neighborhood.
Rise Broadband Fixed Wireless in South Boulder, Boulder, CO
Rise Broadband offers Fixed Wireless service to 36.8% of South Boulder homes. Across the neighborhood, Rise Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 50 Mbps, with speeds from 50 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 10 and as high as 20, with an average of 10 Mbps throughout the neighborhood.
Which ISP Should You Choose in South Boulder?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in South Boulder is Verizon.
- The fastest internet provider should be Quantum Fiber. Considering speed for the money and reliability in speeds, Verizon may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in South Boulder is Quantum Fiber.
- XFINITY from Comcast, Viasat, HughesNet, and Centurylink has the broadest coverage in South Boulder, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does South Boulder compare to other cities with a similar population?
To see how South Boulder stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to South Boulder's B ISP Report Card and 83 / 100 Digital Connectivity Index.
- ISP Report Card: A-
- Digital Connectivity Index: 95 / 100
- ISP Report Card: A
- Digital Connectivity Index: 50 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 89 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 75 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 85 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 78 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 74 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 55 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 58 / 100
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