Carrierlytics State Coverage Guide

Montana Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Montana.

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



Cell phone coverage map for Montana

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 Montana

#1

T-Mobile

Coverage Score 47.9
In Montana
Overall
41.9%
4G LTE
41.8% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
5G
32.9% avg. -91 dBm 5G signal where 5G coverage exists: avg. -91 dBm
Fast 5G
21.9% avg. -87 dBm Fast 5G signal where Fast 5G coverage exists: avg. -87 dBm
#2

Verizon

Coverage Score 40.3
In Montana
Overall
48.6%
4G LTE
48.2% avg. -98 dBm 4G LTE signal where 4G LTE coverage exists: avg. -98 dBm
5G
10.6% avg. -94 dBm 5G signal where 5G coverage exists: avg. -94 dBm
Fast 5G
5.9% avg. -89 dBm Fast 5G signal where Fast 5G coverage exists: avg. -89 dBm
#3

AT&T

Coverage Score 29.8
In Montana
Overall
42.9%
4G LTE
42.9% avg. -111 dBm 4G LTE signal where 4G LTE coverage exists: avg. -111 dBm
5G
17.2% avg. -114 dBm 5G signal where 5G coverage exists: avg. -114 dBm
Fast 5G
13.8% avg. -114 dBm Fast 5G signal where Fast 5G coverage exists: avg. -114 dBm
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Coverage by county in Montana

Counties are shown for statewide comparison. Coverage percentages use land-area only coverage.

County Verizon AT&T T-Mobile
Beaverhead County, MT 28.8% 28.7% 6.7% 3.6% 26.7% 26.7% 7.3% 6.3% 21.3% 21.3% 17.3% 12.6%
Big Horn County, MT 46.0% 45.9% 5.2% 3.1% 44.2% 44.2% 18.4% 15.2% 36.7% 36.7% 29.4% 21.1%
Blaine County, MT 68.3% 68.2% 13.8% 4.8% 27.1% 27.1% 0.1% 0.0% 46.5% 46.5% 35.7% 22.1%
Broadwater County, MT 50.0% 50.0% 4.1% 1.0% 66.4% 66.4% 41.2% 25.6% 55.5% 55.5% 50.3% 36.4%
Carbon County, MT 67.8% 67.7% 14.6% 8.4% 60.7% 59.3% 34.6% 24.4% 64.7% 64.7% 55.9% 42.7%
Carter County, MT 59.8% 59.5% 12.8% 7.9% 36.1% 36.1% 0.0% 0.0% 12.6% 12.6% 8.0% 4.5%
Cascade County, MT 73.9% 73.9% 31.2% 22.1% 69.1% 69.1% 35.8% 22.1% 70.2% 70.2% 63.1% 48.2%
Chouteau County, MT 67.3% 67.0% 22.2% 10.4% 52.3% 52.3% 33.2% 27.6% 48.0% 48.0% 35.5% 22.2%
Custer County, MT 37.0% 36.5% 8.2% 4.8% 28.8% 28.8% 8.5% 7.2% 34.9% 34.9% 25.5% 15.7%
Daniels County, MT N/A N/A N/A N/A 88.6% 88.6% 0.0% 0.0% 31.7% 31.7% 21.6% 11.4%
Dawson County, MT 54.9% 54.8% 5.3% 3.2% 28.4% 28.4% 0.2% 0.1% 62.5% 62.5% 42.5% 25.9%
Deer Lodge County, MT 49.3% 49.2% 3.9% 1.6% 45.7% 45.7% 33.3% 32.0% 34.2% 34.2% 31.6% 25.1%
Fallon County, MT 67.7% 67.1% 32.2% 18.9% 58.6% 58.6% 31.4% 29.4% 30.4% 30.4% 23.5% 12.0%
Fergus County, MT 64.6% 64.3% 20.4% 11.4% 32.9% 32.7% 19.2% 16.4% 48.4% 48.4% 38.3% 23.5%
Flathead County, MT 24.9% 24.8% 10.4% 6.1% 24.6% 24.6% 18.3% 12.9% 24.8% 24.7% 21.3% 14.8%
Gallatin County, MT 53.5% 53.5% 25.1% 14.2% 54.0% 53.9% 34.1% 20.5% 53.8% 53.7% 48.4% 37.1%
Garfield County, MT 48.0% 48.0% 0.5% 0.2% 2.9% 2.9% 0.0% 0.0% 28.1% 28.1% 17.5% 10.0%
Glacier County, MT 55.0% 54.8% 15.6% 8.6% 54.8% 54.8% 24.4% 18.0% 33.5% 33.5% 27.4% 18.7%
Golden Valley County, MT 59.5% 59.3% 7.5% 2.2% 54.1% 54.1% 14.3% 14.0% 66.5% 66.5% 48.6% 31.0%
Granite County, MT 45.0% 44.9% 9.3% 4.5% 42.3% 42.3% 24.3% 21.1% 34.6% 34.5% 32.4% 22.3%
Hill County, MT 88.7% 88.7% 13.8% 5.4% 71.3% 71.3% 4.5% 4.0% 58.8% 58.8% 46.7% 28.7%
Jefferson County, MT 58.6% 58.5% 7.9% 4.6% 64.2% 64.2% 36.3% 31.5% 55.5% 55.3% 49.1% 35.6%
Judith Basin County, MT 61.1% 60.9% 18.5% 10.0% 56.3% 56.2% 26.1% 22.0% 60.3% 60.3% 49.0% 33.2%
Lake County, MT 55.4% 55.3% 18.3% 11.8% 62.8% 62.8% 44.6% 40.6% 54.8% 54.7% 46.2% 26.4%
Lewis and Clark County, MT 45.2% 45.2% 8.6% 5.3% 34.0% 34.0% 13.4% 8.5% 36.2% 36.0% 33.3% 23.4%
Liberty County, MT 82.1% 82.0% 11.9% 7.1% 63.6% 63.6% 15.0% 12.7% 61.4% 61.4% 49.6% 36.1%
Lincoln County, MT 13.8% 13.8% 0.7% 0.3% 16.5% 16.5% 10.0% 9.0% 14.6% 14.5% 12.9% 8.8%
Madison County, MT 40.3% 40.3% 5.3% 2.5% 48.6% 48.6% 28.8% 25.6% 48.1% 47.7% 42.1% 29.5%
McCone County, MT 56.6% 56.5% 9.6% 6.2% 38.5% 38.5% 0.0% 0.0% 49.2% 49.2% 28.3% 15.4%
Meagher County, MT 21.8% 21.8% 2.9% 1.4% 19.7% 19.7% 0.5% 0.4% 26.7% 26.7% 22.1% 15.8%
Mineral County, MT 32.8% 32.7% 5.9% 3.7% 40.2% 40.2% 14.4% 13.1% 24.8% 24.5% 22.5% 14.5%
Missoula County, MT 47.5% 47.4% 9.6% 5.4% 45.5% 45.5% 26.4% 22.5% 32.1% 31.8% 30.1% 21.3%
Musselshell County, MT 54.9% 54.6% 21.4% 13.1% 54.7% 54.7% 31.9% 28.3% 64.2% 64.2% 45.4% 26.4%
Park County, MT 42.0% 42.0% 1.8% 1.2% 39.1% 39.1% 27.2% 23.2% 36.6% 36.6% 32.7% 24.2%
Petroleum County, MT 53.2% 52.8% 23.5% 14.5% 4.8% 4.8% 0.5% 0.4% 48.7% 48.7% 31.5% 15.4%
Phillips County, MT 74.6% 74.5% 3.9% 1.0% 11.3% 11.2% 0.2% 0.0% 39.4% 39.4% 24.8% 14.3%
Pondera County, MT 76.8% 76.6% 22.9% 10.2% 75.9% 75.9% 47.5% 42.0% 67.9% 67.9% 54.9% 38.7%
Powder River County, MT 39.5% 39.2% 8.0% 4.3% 14.3% 14.3% 3.6% 1.7% 18.3% 18.3% 11.3% 5.9%
Powell County, MT 34.8% 34.8% 2.5% 1.2% 34.5% 34.5% 19.1% 17.3% 24.6% 24.5% 22.4% 15.8%
Prairie County, MT 61.9% 61.3% 11.6% 7.0% 27.7% 27.7% 1.3% 1.0% 39.2% 39.2% 7.8% 3.0%
Ravalli County, MT 39.7% 39.7% 7.5% 4.2% 29.9% 29.9% 22.0% 16.4% 24.9% 24.8% 24.0% 18.8%
Richland County, MT 61.2% 61.1% 4.8% 3.6% 48.3% 48.3% 10.6% 9.7% 58.6% 58.6% 36.8% 22.0%
Roosevelt County, MT 0.2% 0.1% 0.0% 0.0% 93.2% 93.2% 1.1% 0.9% 75.8% 75.8% 59.4% 38.8%
Rosebud County, MT 44.3% 44.1% 8.0% 5.4% 51.5% 51.5% 26.6% 21.9% 26.1% 26.1% 17.6% 10.3%
Sanders County, MT 32.4% 32.3% 5.2% 3.2% 31.9% 31.9% 9.6% 8.6% 28.4% 28.2% 24.5% 16.6%
Sheridan County, MT 0.1% 0.1% 0.0% 0.0% 91.6% 91.4% 15.1% 11.4% 35.5% 35.4% 31.0% 21.4%
Silver Bow County, MT 67.9% 67.9% 11.2% 6.5% 63.3% 63.3% 43.1% 29.4% 54.2% 54.1% 49.4% 38.5%
Stillwater County, MT 67.7% 67.6% 4.7% 2.7% 52.0% 51.9% 19.8% 16.4% 53.6% 53.6% 40.6% 27.3%
Sweet Grass County, MT 54.3% 54.3% 8.7% 5.7% 50.9% 50.9% 24.4% 23.3% 56.4% 56.4% 46.1% 32.6%
Teton County, MT 66.2% 66.0% 18.7% 11.0% 55.2% 55.2% 29.6% 26.7% 63.8% 63.8% 53.2% 34.3%
Toole County, MT 73.2% 72.9% 27.6% 13.3% 76.4% 76.4% 55.9% 33.7% 64.1% 64.1% 51.4% 34.8%
Treasure County, MT 51.3% 51.2% 2.5% 1.5% 56.3% 56.3% 35.0% 29.3% 54.0% 54.0% 39.5% 21.3%
Valley County, MT 9.6% 0.0% 9.6% 5.5% 54.1% 54.1% 0.0% 0.0% 39.3% 39.3% 30.4% 20.2%
Wheatland County, MT 59.0% 59.0% 0.0% 0.0% 69.2% 69.2% 0.0% 0.0% 70.1% 70.1% 55.8% 34.9%
Wibaux County, MT 42.6% 42.2% 7.1% 1.4% 53.2% 53.2% 13.4% 13.3% 38.6% 38.6% 30.5% 19.4%
Yellowstone County, MT 75.4% 75.2% 27.5% 20.1% 72.5% 72.5% 55.3% 44.1% 83.8% 83.8% 68.7% 50.2%

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 Montana 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.