Mercer County, OH Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Mercer County, OH

Coverage rankings for Mercer County, OH

AT&T currently ranks first for coverage in this area, with a coverage score of 88.5. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T88.599.8%99.8%86.1%83.1% -112 dBm
2Verizon80.098.6%98.5%63.6%38.9% -94 dBm
3T-Mobile77.686.3%86.2%72.7%44.8% -94 dBm

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

Cell phone coverage map for Mercer County, OH

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 Mercer County, OH

#1

AT&T

Coverage Score 88.5
In Mercer County, OH
Overall
99.8%
4G LTE
99.8%
5G
86.1%
Fast 5G
83.1%
Average Signal -112 dBm
#2

Verizon

Coverage Score 80.0
In Mercer County, OH
Overall
98.6%
4G LTE
98.5%
5G
63.6%
Fast 5G
38.9%
Average Signal -94 dBm
#3

T-Mobile

Coverage Score 77.6
In Mercer County, OH
Overall
86.3%
4G LTE
86.2%
5G
72.7%
Fast 5G
44.8%
Average Signal -94 dBm
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Coverage by city in Mercer County, OH

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

CityVerizonAT&TT-Mobile
Burkettsville, OH 100.0% 100.0% 60.0% 40.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -100 dBm 100.0% 100.0% 100.0% 80.0% -96 dBm
Celina, OH 100.0% 100.0% 43.5% 43.5% -76 dBm 100.0% 100.0% 100.0% 100.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Chickasaw, OH 100.0% 100.0% 100.0% 100.0% -71 dBm 100.0% 100.0% 100.0% 100.0% -85 dBm 87.5% 87.5% 62.5% 0.0% -103 dBm
Coldwater, OH 100.0% 100.0% 100.0% 95.8% -76 dBm 100.0% 100.0% 100.0% 100.0% -91 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Fort Recovery, OH 100.0% 100.0% 100.0% 100.0% -81 dBm 100.0% 100.0% 3.3% 3.3% -87 dBm 100.0% 100.0% 100.0% 100.0% -69 dBm
Maria Stein, OH 100.0% 100.0% 96.0% 85.6% -89 dBm 100.0% 100.0% 100.0% 99.2% -101 dBm 92.8% 92.0% 89.6% 24.0% -99 dBm
Mendon, OH 92.9% 92.9% 71.4% 42.9% -101 dBm 85.7% 85.7% 35.7% 21.4% -120 dBm 35.7% 35.7% 14.3% 7.1% -106 dBm
Montezuma, OH 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -120 dBm 100.0% 100.0% 100.0% 33.3% -97 dBm
Rockford, OH 100.0% 100.0% 100.0% 90.5% -86 dBm 100.0% 100.0% 85.7% 85.7% -120 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Saint Henry, OH 100.0% 100.0% 100.0% 97.7% -79 dBm 100.0% 100.0% 100.0% 97.7% -99 dBm 100.0% 100.0% 86.4% 50.0% -98 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 Mercer County, OH 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.