Carrierlytics County Coverage Guide

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

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

Using FCC mobile coverage data across cities and ZIP codes in Douglas County, CO, Carrierlytics compares the top-performing networks and the cheapest plans that use them.

Douglas County, CO

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 Carrierlytics.

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Cell phone coverage rankings by network in Douglas County, CO

#1

T-Mobile

Coverage Score 74.1
In Douglas County, CO
Overall
78.3%
4G LTE
77.9% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
5G
66.3% avg. -90 dBm 5G signal where 5G coverage exists: avg. -90 dBm
Fast 5G
46.8% avg. -86 dBm Fast 5G signal where Fast 5G coverage exists: avg. -86 dBm
#2

Verizon

Coverage Score 72.7
In Douglas County, CO
Overall
80.1%
4G LTE
79.5% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
5G
60.3% avg. -92 dBm 5G signal where 5G coverage exists: avg. -92 dBm
Fast 5G
44.4% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
#3

AT&T

Coverage Score 65.5
In Douglas County, CO
Overall
85.5%
4G LTE
85.4% avg. -104 dBm 4G LTE signal where 4G LTE coverage exists: avg. -104 dBm
5G
62.7% avg. -110 dBm 5G signal where 5G coverage exists: avg. -110 dBm
Fast 5G
47.8% avg. -109 dBm Fast 5G signal where Fast 5G coverage exists: avg. -109 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.

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

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics 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.