Best Internet in Boulder, CO
1000 Mbps avg · 18 ZIP codes · 100% fiber · 10 providers/ZIP
Internet Providers in Boulder
| Provider | ZIP Codes Served | % of Area |
|---|---|---|
| Rise Broadband | 18 | 100% |
| CenturyLink | 18 | 100% |
| Comcast | 18 | 100% |
| KellinCommunications | 18 | 100% |
| T-Mobile | 18 | 100% |
| Aerux Broadband | 18 | 100% |
| Charter Communications INC | 18 | 100% |
| Pci | 18 | 100% |
ZIP Codes in Boulder
See how your connection compares to the 1000 Mbps average in Boulder.
Frequently Asked Questions
What is the average internet speed in Boulder, CO?
Boulder, Colorado has an average maximum download speed of 1000 Mbps across 18 ZIP codes. The fastest available speed is 1000 Mbps. 100% of ZIP codes have fiber internet.
Who are the best internet providers in Boulder?
The most widely available providers in Boulder are Rise Broadband (18 ZIPs), CenturyLink (18 ZIPs), Comcast (18 ZIPs). Check individual ZIP codes for exact availability at your address.
Is fiber internet available in Boulder?
Yes, fiber internet is available in 100% of Boulder's ZIP codes. Fiber coverage is good in this area. Search your specific ZIP code for exact fiber availability.
How does Boulder compare to the rest of Colorado?
Boulder has an average Broadband Grade of A (93/100). The Boulder area averages 10 providers per ZIP code with 100% fiber access. Check the Colorado overview for statewide comparison.
this entity is one of the data points covered by this site’s U.S. internet availability and broadband speed dataset. The detail above comes directly from the FCC Broadband Data Collection (BDC); the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
Every number on this page links back to the FCC Broadband Data Collection (BDC); the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FCC Broadband Data Collection, 2026.