FCC Data · Updated April 2026
Colorado Internet Overview
873 Mbps avg · 528 ZIP codes · 99% fiber · 64 counties
873
Avg Mbps
99%
Fiber Access
10
Avg Providers
528
ZIP Codes
County Grade Distribution
A
17
B
25
C
14
D
8
F
0
Best Broadband Counties in Colorado
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Phillips | A | 1000 Mbps | 100% | 4 |
| Montrose | A | 1000 Mbps | 100% | 8 |
| Delta | A | 1000 Mbps | 100% | 6 |
| Costilla | A | 1000 Mbps | 100% | 6 |
| Morgan | A | 1000 Mbps | 100% | 7 |
| Boulder | A | 1000 Mbps | 100% | 18 |
| Larimer | A | 1000 Mbps | 100% | 18 |
| Moffat | A | 1000 Mbps | 100% | 5 |
| Logan | A | 1000 Mbps | 100% | 8 |
| Denver | A | 1000 Mbps | 100% | 31 |
| Conejos | A | 1000 Mbps | 100% | 6 |
| Yuma | A | 1000 Mbps | 100% | 7 |
| Mineral | A | 100 Mbps | 100% | 1 |
| Gunnison | A | 1000 Mbps | 100% | 10 |
| Rio Grande | A | 1000 Mbps | 100% | 3 |
Slowest Counties in Colorado
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Lincoln | D | 100 Mbps | 100% | 7 |
| Baca | D | 100 Mbps | 100% | 6 |
| Crowley | D | 1000 Mbps | 100% | 4 |
| San Juan | D | 100 Mbps | 0% | 1 |
| Kiowa | D | 100 Mbps | 100% | 4 |
| Hinsdale | D | 100 Mbps | 100% | 1 |
| Cheyenne | D | 25 Mbps | 100% | 4 |
| Bent | D | 100 Mbps | 100% | 4 |
| Custer | C | 100 Mbps | 100% | 2 |
| Washington | C | 1000 Mbps | 100% | 6 |
| Dolores | C | 100 Mbps | 100% | 5 |
| Jackson | C | 1000 Mbps | 100% | 4 |
| Huerfano | C | 1000 Mbps | 100% | 4 |
| Park | C | 1000 Mbps | 100% | 10 |
| Las Animas | C | 100 Mbps | 100% | 9 |
All 64 Counties in Colorado
APhillips
AMontrose
ADelta
ACostilla
AMorgan
ABoulder
ALarimer
AMoffat
ALogan
ADenver
AConejos
AYuma
AMineral
AGunnison
ARio Grande
AArapahoe
AAlamosa
BJefferson
BAdams
BBroomfield
BDouglas
BEl Paso
BWeld
BEagle
BRoutt
BSaguache
BElbert
BOuray
BArchuleta
BGilpin
BSedgwick
BPitkin
BPueblo
BGrand
BLa Plata
BChaffee
BGarfield
BClear Creek
BMesa
BSummit
BOtero
BMontezuma
CKit Carson
CLake
CTeller
CFremont
CSan Miguel
CLas Animas
CProwers
CRio Blanco
CPark
CHuerfano
CJackson
CDolores
CWashington
CCuster
DBent
DCheyenne
DKiowa
DHinsdale
DSan Juan
DBaca
DCrowley
DLincoln
Internet Providers in Colorado
| Provider | ZIP Codes | Max Speed |
|---|---|---|
| T-Mobile | — | 25 Mbps |
| Charter (Spectrum) | — | 1,000 Mbps |
| Comcast (Xfinity) | — | 2,000 Mbps |
| Lumen (CenturyLink) | — | 940 Mbps |
| Rise Broadband | 528 | 250 Mbps |
| KellinCommunications | 528 | 50 Mbps |
| Aerux Broadband | 528 | 100 Mbps |
| Pci | 528 | 50 Mbps |
Cities in Colorado
Neighboring States
Test Your Speed
See how your connection compares to the 873 Mbps average in Colorado.
Frequently Asked Questions
What is the average internet speed in Colorado?
Colorado has an average maximum download speed of 873 Mbps across 528 ZIP codes. 99% of areas have fiber internet access, and the state averages 10 providers per ZIP code.
Which counties in Colorado have the best internet?
The counties with the best broadband in Colorado include Phillips (Grade A), Montrose (Grade A), Delta (Grade A). These areas have the fastest average speeds and most provider competition.
How does Colorado compare to the national average?
The national average download speed is 876 Mbps, while Colorado averages 873 Mbps — below the national average. Nationally, 96% of areas have fiber, compared to 99% in Colorado.
Sources: FCC Broadband Data Collection