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

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

Coverage rankings for Posey County, IN

AT&T currently ranks first for coverage in this area, with a coverage score of 81.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T81.197.2%97.1%81.6%52.8% -111 dBm
2T-Mobile78.280.4%80.4%71.6%55.8% -91 dBm
3Verizon68.796.7%96.7%36.9%20.4% -95 dBm

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

Cell phone coverage map for Posey 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 Posey County, IN

#1

AT&T

Coverage Score 81.1
In Posey County, IN
Overall
97.2%
4G LTE
97.1%
5G
81.6%
Fast 5G
52.8%
Average Signal -111 dBm
#2

T-Mobile

Coverage Score 78.2
In Posey County, IN
Overall
80.4%
4G LTE
80.4%
5G
71.6%
Fast 5G
55.8%
Average Signal -91 dBm
#3

Verizon

Coverage Score 68.7
In Posey County, IN
Overall
96.7%
4G LTE
96.7%
5G
36.9%
Fast 5G
20.4%
Average Signal -95 dBm
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Coverage by city in Posey County, IN

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

CityVerizonAT&TT-Mobile
Blairsville, IN 100.0% 100.0% 0.0% 0.0% -92 dBm 100.0% 100.0% 100.0% 70.0% -111 dBm 96.7% 96.7% 96.7% 76.7% -91 dBm
Cynthiana, IN 100.0% 100.0% 77.8% 0.0% -103 dBm 100.0% 100.0% 100.0% 44.4% -118 dBm 100.0% 100.0% 100.0% 100.0% -89 dBm
Griffin, IN 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
Mount Vernon, IN 100.0% 100.0% 40.5% 9.5% -90 dBm 100.0% 100.0% 100.0% 85.1% -103 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
New Harmony, IN 100.0% 100.0% 0.0% 0.0% -96 dBm 100.0% 100.0% 36.4% 0.0% -113 dBm 100.0% 100.0% 95.5% 54.5% -96 dBm
Parkers Settlement, IN 100.0% 100.0% 26.7% 0.0% -82 dBm 100.0% 100.0% 100.0% 93.3% -98 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Poseyville, IN 100.0% 100.0% 0.0% 0.0% -73 dBm 100.0% 100.0% 88.2% 11.8% -119 dBm 100.0% 100.0% 100.0% 88.2% -92 dBm
St. Wendel, IN 100.0% 100.0% 2.3% 0.0% -103 dBm 100.0% 100.0% 100.0% 93.2% -100 dBm 86.4% 86.4% 50.0% 18.2% -102 dBm
Stewartsville, IN 100.0% 100.0% 0.0% 0.0% -86 dBm 100.0% 100.0% 85.7% 85.7% -116 dBm 100.0% 100.0% 85.7% 57.1% -91 dBm
Wadesville, IN 100.0% 100.0% 0.0% 0.0% -68 dBm 100.0% 100.0% 100.0% 82.8% -93 dBm 79.3% 79.3% 44.8% 13.8% -101 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 Posey 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.