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

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

Coverage rankings for Putnam County, IN

AT&T currently ranks first for coverage in this area, with a coverage score of 74.5. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T74.594.5%94.4%76.3%37.8% -113 dBm
2Verizon66.797.0%97.0%31.8%18.6% -98 dBm
3T-Mobile66.367.2%67.2%58.0%41.5% -92 dBm

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

Cell phone coverage map for Putnam 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 Putnam County, IN

#1

AT&T

Coverage Score 74.5
In Putnam County, IN
Overall
94.5%
4G LTE
94.4%
5G
76.3%
Fast 5G
37.8%
Average Signal -113 dBm
#2

Verizon

Coverage Score 66.7
In Putnam County, IN
Overall
97.0%
4G LTE
97.0%
5G
31.8%
Fast 5G
18.6%
Average Signal -98 dBm
#3

T-Mobile

Coverage Score 66.3
In Putnam County, IN
Overall
67.2%
4G LTE
67.2%
5G
58.0%
Fast 5G
41.5%
Average Signal -92 dBm
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Coverage by city in Putnam County, IN

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

CityVerizonAT&TT-Mobile
Bainbridge, IN 100.0% 100.0% 0.0% 0.0% -94 dBm 100.0% 100.0% 100.0% 100.0% -86 dBm 10.0% 10.0% 0.0% 0.0% -110 dBm
Cloverdale, IN 100.0% 100.0% 52.3% 39.5% -90 dBm 100.0% 100.0% 100.0% 51.2% -108 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Fillmore, IN 100.0% 100.0% 62.7% 7.8% -102 dBm 100.0% 100.0% 92.2% 31.4% -115 dBm 96.1% 96.1% 88.2% 66.7% -93 dBm
Greencastle, IN 100.0% 100.0% 65.6% 32.8% -93 dBm 100.0% 100.0% 100.0% 74.8% -99 dBm 100.0% 100.0% 99.2% 94.7% -84 dBm
Groveland, IN 100.0% 100.0% 64.3% 25.0% -90 dBm 100.0% 100.0% 96.4% 10.7% -114 dBm 60.7% 60.7% 39.3% 3.6% -102 dBm
Heritage Lake, IN 100.0% 100.0% 58.5% 40.2% -92 dBm 100.0% 100.0% 100.0% 41.5% -104 dBm 80.5% 80.5% 56.1% 28.0% -99 dBm
Putnamville, IN 100.0% 100.0% 84.3% 62.7% -85 dBm 100.0% 100.0% 100.0% 96.1% -96 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Roachdale, IN 100.0% 100.0% 0.0% 0.0% -108 dBm 100.0% 100.0% 100.0% 33.3% -117 dBm N/A N/A N/A N/A N/A
Russellville, IN 100.0% 100.0% 0.0% 0.0% -104 dBm 100.0% 100.0% 100.0% 40.0% -112 dBm 100.0% 100.0% 100.0% 80.0% -94 dBm
Van Bibber Lake, IN 100.0% 100.0% 16.7% 16.7% -100 dBm 100.0% 100.0% 100.0% 66.7% -115 dBm 50.0% 50.0% 50.0% 0.0% -100 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 Putnam 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.