Beaverhead County, MT Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Beaverhead County, MT

Coverage rankings for Beaverhead County, MT

T-Mobile currently ranks first for coverage in this area, with a coverage score of 29.2. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile29.221.3%21.3%17.3%12.6% -93 dBm
2Verizon26.028.8%28.7%6.7%3.6% -100 dBm
3AT&T22.426.7%26.7%7.3%6.3% -113 dBm

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

Cell phone coverage map for Beaverhead County, MT

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 Beaverhead County, MT

#1

T-Mobile

Coverage Score 29.2
In Beaverhead County, MT
Overall
21.3%
4G LTE
21.3%
5G
17.3%
Fast 5G
12.6%
Average Signal -93 dBm
#2

Verizon

Coverage Score 26.0
In Beaverhead County, MT
Overall
28.8%
4G LTE
28.7%
5G
6.7%
Fast 5G
3.6%
Average Signal -100 dBm
#3

AT&T

Coverage Score 22.4
In Beaverhead County, MT
Overall
26.7%
4G LTE
26.7%
5G
7.3%
Fast 5G
6.3%
Average Signal -113 dBm
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Coverage by city in Beaverhead County, MT

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

CityVerizonAT&TT-Mobile
Argenta, MT 14.3% 14.3% 0.0% 0.0% -100 dBm 57.1% 57.1% 0.0% 0.0% -110 dBm N/A N/A N/A N/A N/A
Dell, MT 64.3% 64.3% 0.0% 0.0% -98 dBm 64.3% 64.3% 57.1% 57.1% -118 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Dewey, MT N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Dillon, MT 100.0% 100.0% 0.0% 0.0% -78 dBm 100.0% 100.0% 0.0% 0.0% -93 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
Glen, MT 100.0% 100.0% 100.0% 100.0% -95 dBm 100.0% 100.0% 100.0% 100.0% -102 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Grant, MT 94.9% 94.9% 0.0% 0.0% -101 dBm 100.0% 100.0% 0.0% 0.0% -112 dBm N/A N/A N/A N/A N/A
Jackson, MT 100.0% 100.0% 0.0% 0.0% -70 dBm 100.0% 100.0% 100.0% 92.0% -86 dBm N/A N/A N/A N/A N/A
Lakeview, MT N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Lima, MT 100.0% 100.0% 0.0% 0.0% -65 dBm 100.0% 100.0% 100.0% 73.3% -83 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Maverick Mountain, MT N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.3% 2.3% 2.3% 2.3% -100 dBm
Polaris, MT 1.9% 1.9% 0.0% 0.0% -110 dBm 14.5% 14.5% 0.0% 0.0% -120 dBm 22.7% 22.7% 19.0% 15.4% -91 dBm
Wisdom, MT 100.0% 100.0% 100.0% 96.2% -90 dBm N/A N/A N/A N/A N/A 100.0% 100.0% 100.0% 100.0% -71 dBm
Wise River, MT N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Anaconda-Deer Lodge County, MT 49.3% 49.2% 3.9% 1.6% -98 dBm 45.7% 45.7% 33.3% 32.0% -115 dBm 34.2% 34.2% 31.6% 25.1% -89 dBm
Butte-Silver Bow (balance), MT 67.8% 67.8% 11.1% 6.4% -98 dBm 63.2% 63.2% 42.9% 29.4% -115 dBm 54.1% 53.9% 49.3% 38.4% -90 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 Beaverhead County, MT 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.