T-Mobile currently ranks first for coverage in this area, with a coverage score of 45.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.Coverage rankings for Idaho
| Rank | Carrier | Score | Overall | 4G LTE | 5G | Fast 5G | Average Signal |
|---|---|---|---|---|---|---|---|
| 1 | T-Mobile | 45.1 | 38.8% | 37.5% | 35.3% | 26.5% | -91 dBm |
| 2 | AT&T | 36.8 | 45.2% | 45.2% | 24.3% | 16.2% | -114 dBm |
| 3 | Verizon | 35.3 | 44.9% | 44.9% | 11.8% | 6.4% | -99 dBm |
Scores include coverage area, network type, and average signal strength.
Cell phone coverage map for Idaho
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.
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 Idaho
T-Mobile
- Overall
- 38.8%
- 4G LTE
- 37.5%
- 5G
- 35.3%
- Fast 5G
- 26.5%
AT&T
- Overall
- 45.2%
- 4G LTE
- 45.2%
- 5G
- 24.3%
- Fast 5G
- 16.2%
Verizon
- Overall
- 44.9%
- 4G LTE
- 44.9%
- 5G
- 11.8%
- Fast 5G
- 6.4%
Coverage varies by neighborhood. Your carrier shouldn’t.
US Mobile lets you switch between all three major networks, so you can choose the one that works best where you actually use your phone.
Pricing, network access, switching terms, and home internet availability may vary.
Coverage by county in Idaho
Counties are shown for statewide comparison. Coverage percentages use land-area only coverage.
| County | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Ada County, ID | 96.7% 96.7% 53.5% 41.8% -94 dBm | 91.8% 91.7% 59.4% 34.7% -110 dBm | 94.4% 89.9% 93.2% 77.8% -87 dBm |
| Adams County, ID | 57.3% 57.1% 9.4% 5.8% -101 dBm | 49.0% 49.0% 14.4% 10.2% -114 dBm | 35.2% 35.2% 22.8% 16.7% -93 dBm |
| Bannock County, ID | 84.7% 84.6% 18.4% 13.1% -94 dBm | 80.2% 80.1% 26.0% 17.8% -109 dBm | 71.2% 69.8% 68.4% 57.6% -89 dBm |
| Bear Lake County, ID | 55.8% 55.5% 10.1% 3.8% -96 dBm | 53.3% 53.3% 26.3% 23.1% -114 dBm | 44.3% 44.2% 38.7% 28.0% -93 dBm |
| Benewah County, ID | 38.9% 38.9% 1.3% 0.1% -100 dBm | 44.3% 44.3% 28.9% 23.8% -113 dBm | 37.6% 37.6% 30.9% 22.7% -93 dBm |
| Bingham County, ID | 79.4% 79.4% 31.8% 12.7% -98 dBm | 80.9% 80.8% 46.1% 28.6% -114 dBm | 74.0% 73.4% 69.8% 53.9% -90 dBm |
| Blaine County, ID | 55.3% 55.3% 8.0% 4.0% -100 dBm | 46.3% 46.3% 15.0% 10.7% -112 dBm | 40.4% 37.8% 32.7% 20.4% -93 dBm |
| Boise County, ID | 36.3% 36.3% 3.6% 2.2% -101 dBm | 23.0% 22.9% 8.4% 6.4% -112 dBm | 17.8% 17.2% 15.9% 9.7% -94 dBm |
| Bonner County, ID | 62.3% 62.3% 1.0% 0.5% -99 dBm | 50.4% 50.4% 40.5% 31.5% -116 dBm | 35.1% 34.8% 30.0% 19.4% -94 dBm |
| Bonneville County, ID | 68.6% 68.6% 24.2% 14.6% -96 dBm | 65.5% 65.5% 35.8% 20.0% -113 dBm | 56.2% 55.1% 53.5% 42.5% -89 dBm |
| Boundary County, ID | 37.0% 37.0% 1.0% 0.5% -100 dBm | 38.9% 38.9% 29.3% 26.2% -116 dBm | 29.9% 29.8% 24.4% 15.0% -95 dBm |
| Butte County, ID | 59.4% 59.4% 13.2% 4.0% -99 dBm | 57.6% 57.6% 7.1% 3.6% -112 dBm | 50.2% 48.6% 48.1% 34.9% -92 dBm |
| Camas County, ID | 52.6% 52.6% 0.0% 0.0% -99 dBm | 45.7% 45.7% 3.6% 3.0% -111 dBm | 40.0% 36.9% 37.6% 28.9% -92 dBm |
| Canyon County, ID | 99.5% 99.5% 80.0% 67.4% -89 dBm | 97.6% 97.4% 87.8% 57.1% -110 dBm | 99.2% 98.8% 99.0% 94.8% -81 dBm |
| Caribou County, ID | 46.9% 46.9% 8.0% 4.7% -99 dBm | 40.5% 40.5% 11.5% 10.4% -114 dBm | 37.9% 37.6% 30.1% 25.0% -93 dBm |
| Cassia County, ID | 67.7% 67.7% 22.6% 10.8% -98 dBm | 76.8% 76.8% 47.4% 21.3% -113 dBm | 66.7% 64.7% 64.7% 56.0% -89 dBm |
| Clark County, ID | 56.5% 56.5% 0.9% 0.0% -101 dBm | 61.0% 61.0% 11.6% 2.8% -112 dBm | 43.1% 34.3% 39.6% 25.3% -95 dBm |
| Clearwater County, ID | 5.3% 5.3% 0.0% 0.0% -104 dBm | 8.4% 8.3% 2.9% 2.5% -117 dBm | 9.1% 9.1% 6.5% 4.4% -95 dBm |
| Custer County, ID | 0.0% 0.0% 0.0% 0.0% -105 dBm | 10.2% 10.2% 4.5% 3.0% -112 dBm | 5.8% 5.7% 5.3% 4.1% -90 dBm |
| Elmore County, ID | 55.2% 55.2% 13.4% 7.6% -99 dBm | 54.8% 54.8% 39.8% 34.6% -114 dBm | 48.8% 46.6% 47.4% 37.9% -89 dBm |
| Franklin County, ID | 61.3% 61.1% 29.1% 19.6% -98 dBm | 53.2% 53.1% 28.8% 24.4% -113 dBm | 50.6% 48.5% 47.0% 35.8% -91 dBm |
| Fremont County, ID | 80.0% 79.9% 30.8% 13.0% -101 dBm | 77.8% 77.8% 28.7% 9.4% -112 dBm | 72.4% 70.1% 68.4% 48.1% -92 dBm |
| Gem County, ID | 79.6% 79.6% 23.5% 12.0% -100 dBm | 47.2% 47.2% 27.3% 20.4% -116 dBm | 63.7% 62.8% 61.1% 48.6% -90 dBm |
| Gooding County, ID | 95.1% 95.0% 50.3% 24.5% -97 dBm | 91.7% 91.6% 52.5% 31.8% -112 dBm | 90.1% 89.3% 89.1% 79.0% -87 dBm |
| Idaho County, ID | 12.5% 12.5% 0.3% 0.2% -101 dBm | 11.3% 11.3% 7.1% 6.7% -117 dBm | 9.1% 9.1% 6.8% 4.5% -95 dBm |
| Jefferson County, ID | 99.6% 99.6% 59.2% 30.5% -96 dBm | 99.1% 99.1% 62.4% 38.8% -111 dBm | 97.2% 97.0% 94.9% 80.9% -88 dBm |
| Jerome County, ID | 100.0% 100.0% 53.0% 27.7% -96 dBm | 99.7% 99.5% 89.7% 45.3% -114 dBm | 99.7% 99.7% 99.1% 92.3% -86 dBm |
| Kootenai County, ID | 72.4% 72.3% 26.9% 19.8% -99 dBm | 66.2% 66.1% 50.2% 31.8% -114 dBm | 59.6% 59.5% 52.4% 38.7% -91 dBm |
| Latah County, ID | 64.2% 64.2% 3.4% 1.8% -100 dBm | 58.1% 58.1% 38.6% 29.3% -114 dBm | 61.3% 61.3% 54.3% 40.3% -92 dBm |
| Lemhi County, ID | 16.9% 16.9% 3.7% 2.2% -101 dBm | 26.0% 26.0% 14.4% 11.6% -116 dBm | 14.9% 12.7% 13.9% 8.8% -94 dBm |
| Lewis County, ID | 71.7% 71.7% 0.5% 0.4% -97 dBm | 69.8% 69.8% 54.9% 46.8% -115 dBm | 69.2% 69.2% 51.9% 30.7% -97 dBm |
| Lincoln County, ID | 98.6% 98.6% 9.8% 1.0% -99 dBm | 95.5% 95.5% 69.0% 39.4% -114 dBm | 94.2% 93.6% 88.7% 68.4% -92 dBm |
| Madison County, ID | 87.8% 87.8% 56.6% 35.9% -97 dBm | 89.5% 89.5% 63.3% 25.0% -113 dBm | 91.5% 90.9% 88.3% 79.5% -87 dBm |
| Minidoka County, ID | 74.9% 74.9% 34.8% 16.3% -100 dBm | 83.7% 83.6% 60.8% 32.9% -115 dBm | 69.0% 57.2% 67.4% 46.1% -90 dBm |
| Nez Perce County, ID | 55.1% 55.1% 7.4% 4.0% -100 dBm | 58.5% 58.2% 40.1% 24.5% -115 dBm | 60.5% 60.5% 50.6% 39.8% -91 dBm |
| Oneida County, ID | 61.0% 61.0% 15.1% 6.8% -97 dBm | 75.7% 75.7% 38.3% 35.6% -113 dBm | 45.7% 44.0% 43.2% 34.3% -91 dBm |
| Owyhee County, ID | 25.3% 25.2% 5.2% 1.1% -104 dBm | 35.5% 35.5% 18.9% 9.2% -118 dBm | 24.8% 22.6% 22.3% 9.6% -97 dBm |
| Payette County, ID | 87.9% 87.7% 47.7% 35.3% -97 dBm | 81.4% 81.4% 46.3% 41.3% -112 dBm | 85.2% 84.5% 81.1% 68.0% -85 dBm |
| Power County, ID | 66.3% 66.3% 22.7% 10.5% -100 dBm | 78.4% 78.3% 33.8% 26.4% -113 dBm | 63.1% 61.2% 60.5% 44.2% -90 dBm |
| Shoshone County, ID | 14.1% 14.1% 0.5% 0.3% -103 dBm | 13.5% 13.5% 7.5% 6.2% -117 dBm | 12.3% 12.2% 8.5% 5.7% -96 dBm |
| Teton County, ID | 93.5% 93.5% 39.8% 22.9% -99 dBm | 92.0% 92.0% 39.7% 24.8% -110 dBm | 88.8% 88.4% 85.8% 75.7% -86 dBm |
| Twin Falls County, ID | 81.6% 81.6% 24.0% 13.3% -97 dBm | 79.6% 79.5% 40.9% 27.5% -113 dBm | 74.7% 74.0% 71.7% 60.7% -89 dBm |
| Valley County, ID | 24.9% 24.9% 5.6% 3.2% -101 dBm | 17.5% 17.5% 8.1% 6.2% -112 dBm | 13.5% 13.3% 9.0% 5.9% -95 dBm |
| Washington County, ID | 67.3% 67.1% 9.3% 6.1% -101 dBm | 58.9% 58.9% 34.9% 26.5% -113 dBm | 45.7% 43.6% 38.0% 25.4% -94 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 Idaho 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.