Jefferson County, IN Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Jefferson County, IN

Coverage rankings for Jefferson County, IN

AT&T currently ranks first for coverage in this area, with a coverage score of 61.6. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T61.690.7%90.7%38.9%21.6% -114 dBm
2Verizon61.292.1%92.1%23.4%13.9% -99 dBm
3T-Mobile52.953.8%53.8%43.9%26.9% -95 dBm

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

Cell phone coverage map for Jefferson County, IN

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 Jefferson County, IN

#1

AT&T

Coverage Score 61.6
In Jefferson County, IN
Overall
90.7%
4G LTE
90.7%
5G
38.9%
Fast 5G
21.6%
Average Signal -114 dBm
#2

Verizon

Coverage Score 61.2
In Jefferson County, IN
Overall
92.1%
4G LTE
92.1%
5G
23.4%
Fast 5G
13.9%
Average Signal -99 dBm
#3

T-Mobile

Coverage Score 52.9
In Jefferson County, IN
Overall
53.8%
4G LTE
53.8%
5G
43.9%
Fast 5G
26.9%
Average Signal -95 dBm
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Coverage by city in Jefferson County, IN

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

CityVerizonAT&TT-Mobile
Brooksburg, IN 100.0% 100.0% 100.0% 0.0% -110 dBm 100.0% 100.0% 100.0% 100.0% -120 dBm 100.0% 100.0% 100.0% 0.0% -100 dBm
Canaan, IN 100.0% 100.0% 0.0% 0.0% -101 dBm 100.0% 100.0% 28.6% 0.0% -106 dBm 100.0% 100.0% 100.0% 28.6% -97 dBm
Deputy, IN 100.0% 100.0% 0.0% 0.0% -85 dBm 100.0% 100.0% 100.0% 0.0% -120 dBm N/A N/A N/A N/A N/A
Dupont, IN 100.0% 100.0% 8.0% 0.0% -77 dBm 100.0% 100.0% 0.0% 0.0% -117 dBm N/A N/A N/A N/A N/A
Hanover, IN 100.0% 100.0% 89.3% 85.7% -83 dBm 100.0% 100.0% 100.0% 96.4% -99 dBm 94.6% 94.6% 92.9% 83.9% -88 dBm
Kent, IN 100.0% 100.0% 100.0% 100.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -110 dBm 100.0% 100.0% 100.0% 0.0% -100 dBm
Madison, IN 100.0% 100.0% 86.0% 71.9% -88 dBm 100.0% 100.0% 91.0% 78.7% -112 dBm 100.0% 100.0% 99.5% 97.7% -81 dBm
Blocher, IN 100.0% 100.0% 0.0% 0.0% -75 dBm 100.0% 100.0% 100.0% 83.3% -109 dBm 100.0% 100.0% 100.0% 94.4% -90 dBm
Lamb, IN 100.0% 100.0% 93.8% 62.5% -94 dBm 100.0% 100.0% 100.0% 100.0% -104 dBm 93.8% 93.8% 87.5% 68.8% -93 dBm
Paris Crossing, IN 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 95.0% 10.0% -117 dBm 10.0% 10.0% 0.0% 0.0% -110 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 Jefferson County, IN 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.