Franklin County, ID Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Franklin County, ID

Coverage rankings for Franklin County, ID

T-Mobile currently ranks first for coverage in this area, with a coverage score of 55.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile55.350.6%48.5%47.0%35.8% -91 dBm
2Verizon50.561.3%61.1%29.1%19.6% -98 dBm
3AT&T44.053.2%53.1%28.8%24.4% -113 dBm

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

Cell phone coverage map for Franklin County, ID

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 Franklin County, ID

#1

T-Mobile

Coverage Score 55.3
In Franklin County, ID
Overall
50.6%
4G LTE
48.5%
5G
47.0%
Fast 5G
35.8%
Average Signal -91 dBm
#2

Verizon

Coverage Score 50.5
In Franklin County, ID
Overall
61.3%
4G LTE
61.1%
5G
29.1%
Fast 5G
19.6%
Average Signal -98 dBm
#3

AT&T

Coverage Score 44.0
In Franklin County, ID
Overall
53.2%
4G LTE
53.1%
5G
28.8%
Fast 5G
24.4%
Average Signal -113 dBm
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Coverage by city in Franklin County, ID

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

CityVerizonAT&TT-Mobile
Clifton, ID 100.0% 100.0% 89.3% 16.1% -99 dBm 100.0% 100.0% 16.1% 3.6% -114 dBm 100.0% 100.0% 100.0% 94.6% -86 dBm
Dayton, ID 100.0% 100.0% 93.8% 89.4% -91 dBm 97.5% 97.5% 93.8% 56.9% -112 dBm 96.3% 96.3% 95.6% 88.1% -90 dBm
Franklin, ID 100.0% 100.0% 10.3% 10.3% -97 dBm 100.0% 100.0% 100.0% 100.0% -108 dBm 100.0% 100.0% 100.0% 93.1% -88 dBm
Oxford, ID 100.0% 100.0% 0.0% 0.0% -105 dBm 100.0% 100.0% 0.0% 0.0% -120 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Preston, ID 100.0% 100.0% 95.5% 90.4% -78 dBm 100.0% 100.0% 96.8% 83.4% -98 dBm 100.0% 100.0% 100.0% 99.4% -75 dBm
Weston, ID 100.0% 100.0% 83.0% 76.6% -94 dBm 100.0% 100.0% 93.6% 91.5% -111 dBm 100.0% 100.0% 97.9% 83.0% -88 dBm