Denver's internet is led by cable, with fiber expanding and 5G home internet widely available. As the city grows, newer neighborhoods tend to have the best options while some older areas rely on cable or DSL.
What the Public Data Says
City-level speeds vary by provider and technology more than by any single average. For how Denver compares nationally, the Ookla Speedtest Global Index and BroadbandNow publish metro-level availability and speed data, and the FCC's Measuring Broadband America program tracks real-world US broadband performance. These are more reliable than any single test for comparing neighborhoods.
Major Internet Providers in Denver
Major providers include Xfinity (cable), CenturyLink/Quantum (fiber/DSL), Ting (fiber in some areas), Starry (fixed wireless), and T-Mobile/Verizon 5G home.
| Connection Type | Typical Download Range | Notes |
|---|---|---|
| Fiber | 300 Mbps – 1 Gbps+ | Quantum, Ting in wired areas |
| Cable | 100 Mbps – 1.2 Gbps | Xfinity — the main cable provider |
| Fixed wireless / 5G | 50 – 300 Mbps | Starry, T-Mobile, Verizon |
Cable Default, Fiber Growing
Xfinity cable covers most of Denver; fiber (Quantum, Ting) is expanding and 5G home is a solid alternative. If fiber reaches your address, it's usually the best pick. Test wired and compare with your plan.
How to Test Your Speed in Denver
The number that matters is your own connection, at your address. Run a speed test on a wired Ethernet connection, with other devices paused, at a couple of different times of day. Then compare your result with your plan's advertised speed. If it's consistently well below, read why your speed is lower than your plan and work through our slow internet guide before you call your provider.
See how other cities compare in our city internet speed index, or compare countries in the global index.