Grant County, OK Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Grant County, OK

Coverage rankings for Grant County, OK

T-Mobile currently ranks first for coverage in this area, with a coverage score of 80.9. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile80.986.5%86.5%76.7%54.7% -94 dBm
2Verizon76.599.9%99.9%40.2%35.9% -91 dBm
3AT&T63.795.9%95.9%32.1%23.4% -113 dBm

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

Cell phone coverage map for Grant County, OK

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 Grant County, OK

#1

T-Mobile

Coverage Score 80.9
In Grant County, OK
Overall
86.5%
4G LTE
86.5%
5G
76.7%
Fast 5G
54.7%
Average Signal -94 dBm
#2

Verizon

Coverage Score 76.5
In Grant County, OK
Overall
99.9%
4G LTE
99.9%
5G
40.2%
Fast 5G
35.9%
Average Signal -91 dBm
#3

AT&T

Coverage Score 63.7
In Grant County, OK
Overall
95.9%
4G LTE
95.9%
5G
32.1%
Fast 5G
23.4%
Average Signal -113 dBm
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Coverage by city in Grant County, OK

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

CityVerizonAT&TT-Mobile
Deer Creek, OK 100.0% 100.0% 0.0% 0.0% -97 dBm 100.0% 100.0% 100.0% 33.3% -120 dBm 100.0% 100.0% 100.0% 33.3% -97 dBm
Jefferson, OK 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 60.0% 40.0% -114 dBm 100.0% 100.0% 100.0% 80.0% -98 dBm
Lamont, OK 100.0% 100.0% 0.0% 0.0% -71 dBm 100.0% 100.0% 12.5% 12.5% -86 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Manchester, OK 100.0% 100.0% 20.0% 0.0% -100 dBm 40.0% 40.0% 0.0% 0.0% -120 dBm N/A N/A N/A N/A N/A
Medford, OK 100.0% 100.0% 97.1% 94.3% -83 dBm 100.0% 100.0% 8.6% 8.6% -87 dBm 100.0% 100.0% 100.0% 100.0% -71 dBm
Nash, OK 100.0% 100.0% 0.0% 0.0% -94 dBm 100.0% 100.0% 28.6% 28.6% -91 dBm 100.0% 100.0% 85.7% 57.1% -94 dBm
Pond Creek, OK 100.0% 100.0% 94.4% 94.4% -89 dBm 100.0% 100.0% 94.4% 94.4% -114 dBm 100.0% 100.0% 100.0% 94.4% -83 dBm
Renfrow, OK 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 0.0% 0.0% -120 dBm 33.3% 33.3% 33.3% 0.0% -100 dBm
Wakita, OK 100.0% 100.0% 100.0% 100.0% -71 dBm 100.0% 100.0% 0.0% 0.0% -116 dBm 25.0% 25.0% 12.5% 0.0% -105 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 Grant County, OK 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.