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

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

Coverage rankings for Decatur County, IN

Verizon currently ranks first for coverage in this area, with a coverage score of 80.2. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1Verizon80.299.7%99.7%59.4%39.2% -93 dBm
2AT&T80.198.9%98.9%86.8%44.1% -112 dBm
3T-Mobile65.968.5%68.5%57.1%39.4% -93 dBm

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

Cell phone coverage map for Decatur 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 Decatur County, IN

#1

Verizon

Coverage Score 80.2
In Decatur County, IN
Overall
99.7%
4G LTE
99.7%
5G
59.4%
Fast 5G
39.2%
Average Signal -93 dBm
#2

AT&T

Coverage Score 80.1
In Decatur County, IN
Overall
98.9%
4G LTE
98.9%
5G
86.8%
Fast 5G
44.1%
Average Signal -112 dBm
#3

T-Mobile

Coverage Score 65.9
In Decatur County, IN
Overall
68.5%
4G LTE
68.5%
5G
57.1%
Fast 5G
39.4%
Average Signal -93 dBm
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Coverage by city in Decatur County, IN

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

CityVerizonAT&TT-Mobile
Adams, IN 100.0% 100.0% 100.0% 75.0% -100 dBm 100.0% 100.0% 100.0% 75.0% -108 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Burney, IN 100.0% 100.0% 100.0% 100.0% -80 dBm 100.0% 100.0% 100.0% 0.0% -120 dBm 33.3% 33.3% 33.3% 0.0% -100 dBm
Clarksburg, IN 100.0% 100.0% 100.0% 100.0% -75 dBm 100.0% 100.0% 100.0% 18.2% -116 dBm 9.1% 9.1% 0.0% 0.0% -110 dBm
Greensburg, IN 100.0% 100.0% 95.5% 81.5% -87 dBm 100.0% 100.0% 100.0% 38.7% -100 dBm 100.0% 100.0% 100.0% 99.6% -75 dBm
Lake Santee, IN 100.0% 100.0% 69.4% 67.7% -87 dBm 85.5% 83.9% 58.1% 25.8% -118 dBm N/A N/A N/A N/A N/A
Letts, IN 100.0% 100.0% 0.0% 0.0% -98 dBm 100.0% 100.0% 100.0% 50.0% -100 dBm 100.0% 100.0% 75.0% 25.0% -100 dBm
Milford Census Place 1849302, IN 100.0% 100.0% 75.0% 75.0% -95 dBm 75.0% 75.0% 75.0% 0.0% -120 dBm 75.0% 75.0% 75.0% 25.0% -97 dBm
Millhousen, IN 100.0% 100.0% 100.0% 100.0% -80 dBm 100.0% 100.0% 100.0% 100.0% -92 dBm 26.1% 26.1% 4.3% 4.3% -105 dBm
New Point, IN 100.0% 100.0% 100.0% 100.0% -84 dBm 100.0% 100.0% 57.1% 57.1% -117 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Sandusky, IN 100.0% 100.0% 0.0% 0.0% -87 dBm 66.7% 66.7% 66.7% 0.0% -120 dBm 33.3% 33.3% 33.3% 0.0% -100 dBm
Sardinia, IN 100.0% 100.0% 0.0% 0.0% -80 dBm 100.0% 100.0% 25.0% 25.0% -100 dBm 100.0% 100.0% 50.0% 0.0% -105 dBm
St. Omer, IN 100.0% 100.0% 100.0% 66.7% -97 dBm 100.0% 100.0% 100.0% 66.7% -105 dBm 100.0% 100.0% 100.0% 100.0% -65 dBm
St. Paul, IN 100.0% 100.0% 100.0% 100.0% -76 dBm 100.0% 100.0% 87.5% 0.0% -119 dBm 62.5% 62.5% 37.5% 0.0% -104 dBm
Westport, IN 100.0% 100.0% 13.3% 0.0% -81 dBm 100.0% 100.0% 100.0% 100.0% -92 dBm 100.0% 100.0% 100.0% 100.0% -79 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 Decatur 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.