Glynn County, GA Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Glynn County, GA

Coverage rankings for Glynn County, GA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 71.0. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile71.071.2%71.2%62.5%48.7% -91 dBm
2AT&T67.590.0%89.4%52.6%32.5% -112 dBm
3Verizon66.699.1%99.1%26.5%16.2% -95 dBm

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

Cell phone coverage map for Glynn County, GA

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 Glynn County, GA

#1

T-Mobile

Coverage Score 71.0
In Glynn County, GA
Overall
71.2%
4G LTE
71.2%
5G
62.5%
Fast 5G
48.7%
Average Signal -91 dBm
#2

AT&T

Coverage Score 67.5
In Glynn County, GA
Overall
90.0%
4G LTE
89.4%
5G
52.6%
Fast 5G
32.5%
Average Signal -112 dBm
#3

Verizon

Coverage Score 66.6
In Glynn County, GA
Overall
99.1%
4G LTE
99.1%
5G
26.5%
Fast 5G
16.2%
Average Signal -95 dBm
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Coverage by city in Glynn County, GA

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

CityVerizonAT&TT-Mobile
Brunswick, GA 100.0% 100.0% 99.2% 95.8% -84 dBm 96.8% 96.8% 91.7% 72.5% -99 dBm 99.4% 99.4% 99.4% 99.4% -80 dBm
Country Club Estates, GA 100.0% 100.0% 96.8% 77.0% -86 dBm 99.2% 99.2% 96.0% 51.6% -103 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Dock Junction, GA 100.0% 100.0% 92.5% 75.9% -87 dBm 100.0% 100.0% 100.0% 79.4% -103 dBm 100.0% 100.0% 100.0% 98.4% -84 dBm
Everett, GA 100.0% 100.0% 0.0% 0.0% -94 dBm 100.0% 100.0% 65.2% 65.2% -119 dBm 91.3% 91.3% 73.9% 4.3% -101 dBm
Jekyll Island, GA 100.0% 100.0% 27.5% 4.0% -92 dBm 89.6% 89.6% 66.9% 47.4% -111 dBm 90.4% 90.4% 76.1% 56.6% -92 dBm
Saint Simons Island, GA 98.8% 98.8% 33.1% 15.2% -93 dBm 93.3% 93.1% 74.4% 44.1% -110 dBm 87.4% 87.3% 81.6% 72.0% -89 dBm
Sea Island, GA 100.0% 100.0% 21.7% 18.3% -83 dBm 80.0% 80.0% 80.0% 59.2% -105 dBm 78.3% 77.5% 70.8% 65.8% -87 dBm
St. Simons, GA 100.0% 100.0% 46.8% 26.8% -89 dBm 98.2% 98.0% 86.0% 54.5% -107 dBm 99.6% 99.6% 98.4% 91.8% -84 dBm
Sterling, GA 100.0% 100.0% 0.0% 0.0% -86 dBm 100.0% 100.0% 100.0% 54.2% -105 dBm 100.0% 100.0% 98.3% 89.0% -87 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 Glynn County, GA 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.