Cell phone coverage map for Colorado
Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.
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Darker areas mean the carrier covers more of that location.
Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Carrierlytics.
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Cell phone coverage rankings by network in Colorado
#1
T-Mobile
Coverage Score
52.3
In Colorado
- Overall
- 49.1%
- 4G LTE
- 48.9% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
- 5G
- 38.3% avg. -92 dBm 5G signal where 5G coverage exists: avg. -92 dBm
- Fast 5G
- 25.0% avg. -87 dBm Fast 5G signal where Fast 5G coverage exists: avg. -87 dBm
#2
Verizon
Coverage Score
44.5
In Colorado
- Overall
- 56.0%
- 4G LTE
- 56.0% avg. -99 dBm 4G LTE signal where 4G LTE coverage exists: avg. -99 dBm
- 5G
- 14.3% avg. -93 dBm 5G signal where 5G coverage exists: avg. -93 dBm
- Fast 5G
- 8.6% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
#3
AT&T
Coverage Score
41.9
In Colorado
- Overall
- 69.0%
- 4G LTE
- 68.9% avg. -109 dBm 4G LTE signal where 4G LTE coverage exists: avg. -109 dBm
- 5G
- 24.3% avg. -114 dBm 5G signal where 5G coverage exists: avg. -114 dBm
- Fast 5G
- 17.8% avg. -113 dBm Fast 5G signal where Fast 5G coverage exists: avg. -113 dBm
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Coverage by county in Colorado
Counties are shown for statewide comparison. Coverage percentages use land-area only coverage.
| County | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Adams County, CO | 89.7% 89.6% 56.7% 35.8% | 99.9% 99.9% 72.9% 58.7% | 64.1% 64.1% 48.2% 36.5% |
| Alamosa County, CO | 96.4% 96.3% 60.4% 40.4% | 96.2% 96.2% 56.5% 36.3% | 77.4% 76.0% 42.3% 11.4% |
| Arapahoe County, CO | 97.0% 97.0% 73.6% 56.6% | 94.0% 94.0% 64.5% 49.0% | 78.7% 78.7% 69.9% 58.9% |
| Archuleta County, CO | 44.4% 44.3% 7.2% 3.2% | 45.0% 44.9% 24.8% 17.4% | 34.2% 33.3% 29.0% 17.8% |
| Baca County, CO | 39.9% 39.9% 0.0% 0.0% | 98.8% 98.8% 34.2% 29.6% | 69.9% 69.9% 53.4% 32.0% |
| Bent County, CO | 53.2% 53.2% 1.7% 0.2% | 90.2% 90.2% 11.0% 9.8% | 38.1% 38.0% 27.9% 18.4% |
| Boulder County, CO | 60.4% 60.2% 43.1% 32.7% | 68.8% 68.7% 45.9% 27.2% | 60.0% 59.1% 54.9% 41.4% |
| Broomfield County, CO | 100.0% 100.0% 99.5% 93.4% | 100.0% 100.0% 99.1% 81.8% | 100.0% 100.0% 99.2% 93.4% |
| Chaffee County, CO | 54.8% 54.7% 21.3% 12.6% | 53.1% 53.1% 30.3% 24.1% | 32.6% 32.6% 26.5% 16.5% |
| Cheyenne County, CO | 90.4% 90.4% 0.0% 0.0% | 92.0% 92.0% 22.5% 13.8% | 73.0% 72.5% 57.4% 32.0% |
| Clear Creek County, CO | 61.8% 61.7% 6.5% 1.7% | 68.5% 68.3% 28.7% 14.6% | 52.6% 52.4% 41.3% 25.5% |
| Conejos County, CO | 52.2% 52.2% 3.7% 0.2% | 54.0% 53.9% 24.4% 18.6% | 28.7% 28.7% 15.0% 5.1% |
| Costilla County, CO | 59.3% 59.3% 9.4% 2.5% | 68.6% 68.6% 27.6% 24.0% | 43.1% 42.9% 27.7% 12.0% |
| Crowley County, CO | 62.4% 62.4% 1.7% 1.6% | 99.7% 99.7% 28.3% 23.0% | 69.9% 69.8% 61.7% 45.3% |
| Custer County, CO | 62.0% 61.9% 1.8% 0.0% | 68.4% 68.3% 29.2% 25.0% | 60.8% 60.4% 52.2% 36.5% |
| Delta County, CO | 69.7% 69.6% 15.6% 3.6% | 57.1% 56.9% 28.5% 20.0% | 62.5% 62.3% 56.8% 43.1% |
| Denver County, CO | 99.7% 99.7% 95.0% 89.9% | 99.7% 99.7% 93.8% 72.1% | 98.8% 98.8% 96.5% 90.3% |
| Dolores County, CO | 31.4% 31.4% 0.0% 0.0% | 41.2% 41.2% 16.6% 12.3% | 20.4% 20.2% 18.1% 13.6% |
| Douglas County, CO | 80.1% 79.5% 60.3% 44.4% | 85.5% 85.4% 62.7% 47.8% | 78.3% 77.9% 66.3% 46.8% |
| Eagle County, CO | 34.5% 34.4% 2.5% 1.4% | 36.4% 36.3% 19.2% 12.5% | 28.2% 27.9% 22.6% 12.9% |
| El Paso County, CO | 80.1% 80.1% 36.3% 24.2% | 90.9% 88.8% 66.8% 44.5% | 77.6% 76.8% 66.6% 46.3% |
| Elbert County, CO | 86.4% 86.4% 16.3% 9.4% | 87.2% 87.0% 16.3% 12.9% | 71.8% 71.7% 57.7% 40.3% |
| Fremont County, CO | 57.9% 57.8% 17.6% 9.1% | 59.7% 59.7% 27.7% 22.7% | 35.2% 34.8% 29.4% 23.3% |
| Garfield County, CO | 29.4% 29.4% 3.5% 2.0% | 26.8% 26.8% 14.3% 11.1% | 25.4% 25.4% 20.0% 12.6% |
| Gilpin County, CO | 59.3% 59.0% 13.1% 6.5% | 74.5% 74.5% 47.3% 39.7% | 49.4% 49.2% 32.2% 17.2% |
| Grand County, CO | 54.9% 54.7% 14.3% 8.3% | 46.3% 46.3% 0.0% 0.0% | 22.2% 22.1% 15.4% 9.4% |
| Gunnison County, CO | 24.4% 24.3% 2.0% 1.2% | 24.2% 24.2% 6.2% 3.9% | 15.8% 15.8% 11.5% 6.7% |
| Hinsdale County, CO | 17.0% 17.0% 0.1% 0.0% | 26.1% 26.1% 0.3% 0.2% | 1.3% 1.3% 0.6% 0.1% |
| Huerfano County, CO | 66.4% 66.3% 9.7% 4.9% | 72.0% 72.0% 33.1% 23.9% | 64.0% 63.8% 52.5% 31.7% |
| Jackson County, CO | 33.2% 33.2% 0.0% 0.0% | 64.6% 64.6% 0.0% 0.0% | 52.4% 52.3% 39.3% 26.5% |
| Jefferson County, CO | 77.0% 76.9% 46.8% 33.4% | 79.9% 79.8% 53.7% 36.5% | 76.4% 75.6% 67.8% 53.8% |
| Kiowa County, CO | 53.2% 53.2% 0.0% 0.0% | 99.5% 99.5% 2.3% 1.9% | 76.1% 76.1% 59.9% 37.7% |
| Kit Carson County, CO | 91.8% 91.8% 24.3% 11.7% | 96.8% 96.8% 67.2% 53.6% | 50.9% 50.9% 35.9% 20.0% |
| La Plata County, CO | 66.7% 66.6% 18.5% 11.1% | 65.7% 65.7% 43.4% 32.3% | 60.7% 60.5% 53.7% 40.5% |
| Lake County, CO | 54.6% 54.3% 13.1% 4.7% | 58.3% 58.2% 25.0% 22.6% | 53.2% 53.2% 42.1% 21.8% |
| Larimer County, CO | 48.9% 48.7% 22.5% 14.9% | 51.9% 51.9% 35.0% 22.7% | 48.6% 48.3% 41.6% 29.8% |
| Las Animas County, CO | 36.7% 36.7% 4.9% 2.4% | 73.0% 73.0% 27.3% 24.7% | 44.2% 43.3% 36.8% 21.3% |
| Lincoln County, CO | 56.8% 56.7% 12.1% 6.7% | 96.4% 96.4% 14.5% 13.3% | 48.6% 48.5% 30.6% 17.5% |
| Logan County, CO | 88.0% 88.0% 40.4% 21.6% | 98.0% 98.0% 0.0% 0.0% | 75.1% 75.0% 61.2% 40.5% |
| Mesa County, CO | 51.3% 51.3% 10.4% 6.1% | 45.2% 45.1% 26.8% 14.2% | 39.1% 39.0% 32.1% 20.8% |
| Mineral County, CO | 35.5% 35.5% 0.4% 0.0% | 45.2% 44.9% 9.0% 2.3% | 25.5% 25.4% 15.6% 8.9% |
| Moffat County, CO | 21.1% 21.1% 1.9% 1.2% | 58.6% 58.6% 3.4% 2.7% | 24.0% 24.0% 9.2% 5.8% |
| Montezuma County, CO | 63.5% 63.5% 7.5% 3.3% | 61.8% 61.8% 25.1% 18.8% | 33.0% 31.7% 27.9% 19.6% |
| Montrose County, CO | 45.4% 45.3% 16.1% 10.0% | 41.0% 40.9% 19.0% 12.9% | 36.1% 35.4% 30.3% 17.5% |
| Morgan County, CO | 86.2% 83.9% 39.3% 24.1% | 98.9% 98.9% 0.8% 0.6% | 82.6% 82.5% 67.6% 47.4% |
| Otero County, CO | 54.5% 54.4% 28.0% 18.7% | 97.4% 97.4% 44.7% 36.8% | 64.1% 63.7% 52.3% 38.8% |
| Ouray County, CO | 67.9% 67.3% 29.9% 14.1% | 61.6% 61.5% 11.7% 9.1% | 48.4% 48.0% 35.3% 17.6% |
| Park County, CO | 74.5% 74.3% 4.0% 1.3% | 72.4% 72.3% 20.3% 15.9% | 42.2% 42.1% 32.8% 18.8% |
| Phillips County, CO | 96.1% 96.1% 14.4% 6.4% | 99.8% 99.8% 0.0% 0.0% | 78.0% 78.0% 61.7% 37.9% |
| Pitkin County, CO | 20.1% 20.0% 4.6% 1.9% | 23.6% 23.6% 12.2% 6.2% | 15.4% 15.4% 11.7% 7.5% |
| Prowers County, CO | 42.5% 42.5% 8.9% 5.8% | 98.6% 98.6% 58.0% 53.1% | 63.9% 63.3% 48.1% 31.1% |
| Pueblo County, CO | 80.2% 80.1% 35.2% 21.9% | 92.2% 92.2% 43.7% 29.6% | 79.6% 79.2% 70.6% 53.4% |
| Rio Blanco County, CO | 38.6% 38.6% 0.0% 0.0% | 51.9% 51.9% 5.4% 2.6% | 20.9% 20.8% 5.0% 2.0% |
| Rio Grande County, CO | 72.2% 72.2% 6.8% 0.0% | 65.9% 65.4% 45.4% 29.8% | 59.5% 59.4% 26.5% 11.1% |
| Routt County, CO | 37.1% 37.0% 4.8% 2.0% | 44.1% 44.1% 1.2% 1.0% | 26.7% 26.6% 21.1% 14.4% |
| Saguache County, CO | 39.3% 39.3% 9.4% 4.0% | 48.7% 48.6% 13.3% 9.1% | 39.0% 38.1% 28.9% 13.5% |
| San Juan County, CO | 20.0% 20.0% 1.8% 1.1% | 12.7% 12.7% 3.9% 3.2% | 13.4% 13.3% 10.5% 5.4% |
| San Miguel County, CO | 35.5% 35.5% 0.3% 0.1% | 60.3% 60.2% 15.9% 15.1% | 26.4% 26.4% 18.9% 10.6% |
| Sedgwick County, CO | 99.8% 99.8% 21.2% 8.0% | 99.9% 99.9% 0.0% 0.0% | 74.0% 74.0% 54.4% 33.2% |
| Summit County, CO | 64.7% 64.6% 18.0% 9.8% | 61.4% 61.4% 31.8% 18.9% | 36.7% 36.6% 30.6% 20.4% |
| Teller County, CO | 55.3% 55.0% 14.4% 7.3% | 53.5% 53.5% 19.4% 14.7% | 46.9% 46.7% 33.6% 19.5% |
| Washington County, CO | 83.8% 83.8% 7.5% 2.2% | 98.0% 98.0% 2.9% 2.6% | 88.0% 87.8% 76.4% 52.0% |
| Weld County, CO | 87.6% 87.5% 48.4% 33.3% | 95.6% 95.5% 67.0% 42.4% | 88.5% 88.5% 75.9% 55.0% |
| Yuma County, CO | 67.8% 67.7% 7.3% 3.6% | 98.0% 98.0% 0.6% 0.2% | 55.6% 55.6% 39.4% 21.7% |
About The Coverage Data
Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of Colorado where that carrier has coverage.
If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.