Internet Speeds in Thornton, CO

Residents of Thornton have 2 internet providers to choose from. The most popular provider is Xfinity, which offers cable internet service. Over 12,066 recent tests, our research shows that Xfinity customers have been getting 194 Mbps for download speeds and 21 Mbps for upload speeds. In addition to Xfinity, DSL and fiber internet service is also available from CenturyLink.

While these are the real speeds we have been seeing in recent tests, there are many factors that affect download and upload speeds, so your actual service may differ.

Last updated on February 24, 2024
ProviderDownload SpeedUpload SpeedLatency
View Details →
194 Mbps21 Mbps8 ms
View Details →
84 Mbps24 Mbps12 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Thornton, CO



Download Speed


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Xfinity is the most popular provider in Thornton offering cable internet service. Users have been getting 194 Mbps for download speeds and 21 Mbps for upload speeds over 12,066 recent tests.

Performance Breakdown

Xfinity has the fastest average download speed, the 2nd fastest average upload speed, and the lowest latency out of all of the providers in Thornton. 28% of users saw download speeds between 100-250 Mbps, and 39% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Thornton

DateDownload SpeedUpload SpeedLatency
February 23, 202490 Mbps70 Mbps8 ms
February 23, 2024118 Mbps116 Mbps7 ms
February 23, 202486 Mbps41 Mbps16 ms
February 23, 2024226 Mbps99 Mbps4 ms
February 23, 2024546 Mbps11 Mbps9 ms
February 23, 2024677 Mbps234 Mbps6 ms
February 23, 202491 Mbps12 Mbps7 ms
February 23, 2024119 Mbps18 Mbps6 ms
February 23, 202492 Mbps30 Mbps6 ms
February 23, 2024119 Mbps41 Mbps7 ms

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Frequently Asked Questions

What internet providers are available in Thornton, CO?

Xfinity and CenturyLink currently operate in Thornton.

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

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

What is the fastest internet provider in Thornton, 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 Thornton are getting, Xfinity provides the fastest download and upload speeds.

Is there fiber internet in Thornton, CO?

CenturyLink provides fiber internet in Thornton.