Douglas County, CO Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Douglas County, CO

Coverage rankings for Douglas County, CO

T-Mobile currently ranks first for coverage in this area, with a coverage score of 74.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile74.178.3%77.9%66.3%46.8% -92 dBm
2Verizon72.680.1%79.5%60.3%44.4% -95 dBm
3AT&T72.085.5%85.4%62.7%47.8% -111 dBm

Scores include coverage area, network type, and average signal strength.

Cell phone coverage map for Douglas County, CO

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.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.

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Cell phone coverage by network in Douglas County, CO

#1

T-Mobile

Coverage Score 74.1
In Douglas County, CO
Overall
78.3%
4G LTE
77.9%
5G
66.3%
Fast 5G
46.8%
Average Signal -92 dBm
#2

Verizon

Coverage Score 72.6
In Douglas County, CO
Overall
80.1%
4G LTE
79.5%
5G
60.3%
Fast 5G
44.4%
Average Signal -95 dBm
#3

AT&T

Coverage Score 72.0
In Douglas County, CO
Overall
85.5%
4G LTE
85.4%
5G
62.7%
Fast 5G
47.8%
Average Signal -111 dBm
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Coverage by city in Douglas County, CO

Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.

CityVerizonAT&TT-Mobile
Acres Green, CO 100.0% 100.0% 100.0% 100.0% -91 dBm 100.0% 100.0% 100.0% 61.5% -102 dBm 100.0% 100.0% 100.0% 92.3% -93 dBm
Castle Pines, CO 99.5% 99.5% 94.6% 84.6% -87 dBm 100.0% 100.0% 92.8% 82.8% -109 dBm 100.0% 100.0% 97.7% 85.1% -89 dBm
Castle Pines Village, CO 100.0% 100.0% 99.0% 94.2% -84 dBm 100.0% 100.0% 89.3% 76.7% -102 dBm 100.0% 100.0% 99.0% 83.5% -87 dBm
Castle Rock, CO 99.9% 99.9% 97.1% 93.6% -84 dBm 100.0% 100.0% 97.2% 87.4% -102 dBm 98.7% 98.7% 95.7% 82.6% -87 dBm
Franktown, CO 100.0% 100.0% 98.5% 96.9% -83 dBm 100.0% 100.0% 69.2% 61.5% -110 dBm 100.0% 100.0% 100.0% 86.2% -89 dBm
Grand View Estates, CO 100.0% 100.0% 100.0% 90.5% -89 dBm 100.0% 100.0% 100.0% 57.1% -104 dBm 100.0% 100.0% 100.0% 81.0% -90 dBm
Highlands Ranch, CO 100.0% 100.0% 92.2% 83.7% -90 dBm 99.8% 99.8% 98.0% 74.8% -103 dBm 99.8% 99.8% 92.9% 73.6% -87 dBm
Larkspur, CO 100.0% 100.0% 97.1% 80.0% -89 dBm 100.0% 100.0% 100.0% 97.1% -93 dBm 97.1% 94.3% 97.1% 94.3% -81 dBm
Lone Tree, CO 100.0% 100.0% 99.5% 88.7% -86 dBm 100.0% 100.0% 98.2% 70.1% -102 dBm 99.1% 99.1% 98.2% 91.4% -83 dBm
Louviers, CO 100.0% 100.0% 72.2% 58.3% -95 dBm 100.0% 100.0% 94.4% 94.4% -119 dBm 100.0% 100.0% 100.0% 97.2% -78 dBm
Meridian, CO 100.0% 100.0% 100.0% 93.4% -86 dBm 100.0% 100.0% 100.0% 75.4% -100 dBm 100.0% 100.0% 100.0% 96.7% -75 dBm
Meridian Village, CO 100.0% 100.0% 100.0% 100.0% -76 dBm 100.0% 100.0% 100.0% 80.0% -112 dBm 100.0% 100.0% 100.0% 60.0% -93 dBm
Parker, CO 100.0% 100.0% 98.0% 91.7% -85 dBm 100.0% 100.0% 99.2% 79.6% -103 dBm 100.0% 100.0% 97.6% 86.6% -84 dBm
Perry Park, CO 82.5% 77.8% 60.3% 21.6% -103 dBm 92.3% 92.3% 49.0% 47.4% -117 dBm 38.7% 38.1% 10.8% 1.5% -105 dBm
Roxborough Park, CO 99.5% 99.5% 72.9% 40.6% -97 dBm 95.2% 95.2% 59.9% 25.1% -114 dBm 97.1% 96.1% 77.8% 57.0% -91 dBm
Sedalia, CO 100.0% 100.0% 100.0% 100.0% -80 dBm 100.0% 100.0% 96.8% 96.8% -117 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
Sierra Ridge, CO 100.0% 100.0% 100.0% 92.3% -79 dBm 100.0% 100.0% 100.0% 46.2% -112 dBm 100.0% 100.0% 100.0% 76.9% -95 dBm
Stepping Stone, CO 100.0% 100.0% 100.0% 100.0% -71 dBm 100.0% 100.0% 100.0% 66.7% -107 dBm 100.0% 100.0% 100.0% 66.7% -93 dBm
Sterling Ranch, CO 100.0% 100.0% 92.1% 84.1% -89 dBm 100.0% 100.0% 92.9% 59.5% -114 dBm 100.0% 100.0% 92.9% 85.7% -87 dBm
Stonegate, CO 100.0% 100.0% 100.0% 87.8% -88 dBm 100.0% 100.0% 100.0% 56.1% -110 dBm 100.0% 100.0% 97.6% 90.2% -85 dBm
The Pinery, CO 100.0% 100.0% 98.3% 90.6% -86 dBm 99.6% 98.3% 97.9% 71.9% -111 dBm 94.0% 94.0% 78.3% 52.3% -92 dBm
Westcreek, CO N/A N/A N/A N/A N/A 17.2% 17.2% 3.4% 3.4% -120 dBm 13.8% 13.8% 6.9% 0.0% -105 dBm
Aurora, CO 99.8% 99.8% 89.1% 76.3% -87 dBm 99.8% 99.8% 97.8% 75.7% -104 dBm 99.8% 99.8% 97.8% 91.9% -83 dBm
Black Forest, CO 91.1% 91.0% 26.1% 16.6% -96 dBm 99.5% 99.5% 85.0% 77.2% -107 dBm 87.3% 87.2% 77.2% 57.4% -91 dBm
Centennial, CO 100.0% 100.0% 89.7% 69.2% -91 dBm 99.9% 99.9% 98.7% 77.8% -103 dBm 100.0% 100.0% 100.0% 96.2% -82 dBm
Dove Valley, CO 100.0% 100.0% 100.0% 97.3% -84 dBm 100.0% 100.0% 100.0% 71.2% -103 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Inverness, CO 100.0% 100.0% 95.8% 79.2% -88 dBm 100.0% 100.0% 100.0% 87.5% -93 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Littleton, CO 100.0% 100.0% 99.7% 91.7% -87 dBm 100.0% 100.0% 100.0% 82.1% -98 dBm 100.0% 100.0% 99.7% 97.2% -79 dBm
Palmer Lake, CO 100.0% 100.0% 95.6% 92.6% -82 dBm 100.0% 100.0% 58.8% 27.9% -109 dBm 88.2% 88.2% 77.9% 72.1% -90 dBm
Ponderosa Park, CO 100.0% 100.0% 92.4% 81.2% -84 dBm 100.0% 100.0% 41.3% 30.1% -102 dBm 100.0% 100.0% 100.0% 92.4% -84 dBm
Woodmoor, CO 100.0% 100.0% 82.5% 68.6% -87 dBm 100.0% 100.0% 59.9% 58.4% -109 dBm 100.0% 100.0% 100.0% 95.6% -86 dBm

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 Douglas County, CO 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.