Internet Speeds in Boulder, CO

In Boulder there are 2 internet service providers, with Xfinity being the most popular. Xfinity offers cable and fiber internet service. In recent tests, Xfinity customers had an average download speed of 188 Mbps and an average upload speed of 17 Mbps. In addition to Xfinity, DSL and fiber internet service is also available from CenturyLink.

While our research has shown these to be the real speeds that users experience, there are many factors that can affect the actual download and upload speeds you will encounter. These may include the type of internet connection you have, the distance between your device and the router, the number of users on the network, and the strength of the signal.

Last updated on March 18, 2024
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
Fiber
View Details →
188 Mbps17 Mbps8 ms
CenturyLink
DSL
Fiber
View Details →
89 Mbps91 Mbps5 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Boulder, CO

Xfinity

Cable
Fiber

Download Speed

188Mbps

Upload Speed

17Mbps

Latency

8ms

Overview

Xfinity is the most popular provider in Boulder offering cable and fiber internet service. Users have been getting 188 Mbps for download speeds and 17 Mbps for upload speeds over 30,911 recent tests.

Performance Breakdown

Xfinity has the fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Boulder. 28% of users saw download speeds between 250-500 Mbps, and 49% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Boulder

DateDownload SpeedUpload SpeedLatency
March 16, 20241 Mbps1 Mbps14 ms
March 16, 2024161 Mbps22 Mbps18 ms
March 16, 2024191 Mbps40 Mbps12 ms
March 16, 2024169 Mbps24 Mbps8 ms
March 16, 2024322 Mbps22 Mbps4 ms
March 16, 2024113 Mbps21 Mbps11 ms
March 16, 202444 Mbps41 Mbps9 ms
March 16, 2024294 Mbps40 Mbps4 ms
March 16, 2024321 Mbps41 Mbps4 ms
March 16, 2024875 Mbps23 Mbps5 ms

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Frequently Asked Questions

What internet providers are available in Boulder, CO?

Xfinity and CenturyLink currently operate in Boulder.

What is the most popular internet provider in Boulder, CO?

Xfinity is currently the most popular internet provider in Boulder based on the number of speed tests in the last 3 months.

What is the fastest internet provider in Boulder, CO?

The fastest internet provider for you is going to differ based on your needs, and which providers actually serve your home. However, when it comes to the real speeds users in Boulder are getting, Xfinity provides the fastest download and upload speeds.

Is there fiber internet in Boulder, CO?

CenturyLink and Xfinity provide fiber internet in Boulder.