Coverage rankings for St. Clair County, MI
AT&T currently ranks first for coverage in this area, with a coverage score of 84.7. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.
| Rank | Carrier | Score | Overall | 4G LTE | 5G | Fast 5G | Average Signal |
|---|---|---|---|---|---|---|---|
| 1 | AT&T | 84.7 | 99.5% | 99.4% | 88.5% | 59.9% | -110 dBm |
| 2 | Verizon | 84.5 | 99.8% | 99.8% | 76.4% | 48.7% | -98 dBm |
| 3 | T-Mobile | 75.3 | 78.6% | 77.7% | 69.1% | 48.7% | -91 dBm |
Scores include coverage area, network type, and average signal strength.
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 St. Clair County, MI
#1
AT&T
Coverage Score 84.7
In St. Clair County, MI
- Overall
- 99.5%
- 4G LTE
- 99.4%
- 5G
- 88.5%
- Fast 5G
- 59.9%
Average Signal -110 dBm
#2
Verizon
Coverage Score 84.5
In St. Clair County, MI
- Overall
- 99.8%
- 4G LTE
- 99.8%
- 5G
- 76.4%
- Fast 5G
- 48.7%
Average Signal -98 dBm
#3
T-Mobile
Coverage Score 75.3
In St. Clair County, MI
- Overall
- 78.6%
- 4G LTE
- 77.7%
- 5G
- 69.1%
- Fast 5G
- 48.7%
Average Signal -91 dBm
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Coverage by city in St. Clair County, MI
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Algonac, MI | 100.0% 100.0% 76.5% 70.6% -98 dBm | 100.0% 100.0% 100.0% 100.0% -99 dBm | 100.0% 100.0% 100.0% 97.1% -81 dBm |
| Allenton, MI | 100.0% 100.0% 97.9% 77.6% -94 dBm | 100.0% 99.9% 98.5% 65.7% -111 dBm | 62.2% 55.8% 54.3% 20.5% -98 dBm |
| Avoca, MI | 99.9% 99.9% 79.8% 43.3% -100 dBm | 99.1% 99.0% 77.1% 47.0% -112 dBm | 46.7% 46.1% 32.8% 11.9% -99 dBm |
| Capac, MI | 100.0% 100.0% 100.0% 95.3% -86 dBm | 100.0% 100.0% 100.0% 100.0% -106 dBm | 100.0% 100.0% 100.0% 100.0% -75 dBm |
| Casco, MI | 100.0% 100.0% 70.1% 38.6% -96 dBm | 99.5% 99.5% 84.4% 49.3% -115 dBm | 86.0% 86.0% 74.1% 49.8% -92 dBm |
| Columbus, MI | 100.0% 100.0% 62.1% 27.1% -99 dBm | 99.9% 99.9% 98.8% 67.2% -111 dBm | 87.0% 87.0% 66.2% 40.1% -95 dBm |
| East China, MI | 100.0% 100.0% 55.2% 33.5% -102 dBm | 100.0% 100.0% 91.5% 66.3% -113 dBm | 78.5% 78.2% 70.3% 52.1% -92 dBm |
| Emmett, MI | 100.0% 100.0% 100.0% 100.0% -84 dBm | 100.0% 100.0% 100.0% 86.1% -104 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |
| Fair Haven, MI | 100.0% 100.0% 57.8% 34.6% -98 dBm | 98.8% 98.8% 92.6% 56.3% -109 dBm | 96.8% 96.8% 89.9% 68.4% -91 dBm |
| Fort Gratiot, MI | 100.0% 100.0% 93.0% 77.9% -94 dBm | 99.9% 99.9% 87.9% 62.1% -104 dBm | 87.7% 87.7% 79.8% 66.1% -86 dBm |
| Goodells, MI | 100.0% 100.0% 89.7% 48.5% -99 dBm | 99.5% 99.3% 95.7% 55.1% -111 dBm | 80.2% 80.2% 74.9% 56.8% -90 dBm |
| Harsens Island, MI | 100.0% 100.0% 45.3% 14.4% -103 dBm | 93.5% 93.5% 87.5% 60.7% -111 dBm | 89.2% 89.2% 86.6% 72.2% -89 dBm |
| Jeddo, MI | 82.0% 80.0% 67.3% 55.0% -96 dBm | 98.3% 98.3% 82.9% 67.1% -110 dBm | 43.0% 43.0% 29.2% 18.9% -96 dBm |
| Lakeport, MI | 100.0% 100.0% 100.0% 100.0% -90 dBm | 100.0% 100.0% 95.8% 50.0% -116 dBm | 83.3% 83.3% 66.7% 4.2% -101 dBm |
| Marine City, MI | 100.0% 100.0% 97.9% 81.3% -94 dBm | 100.0% 100.0% 100.0% 91.7% -102 dBm | 100.0% 100.0% 100.0% 100.0% -75 dBm |
| Marysville, MI | 100.0% 100.0% 94.2% 72.3% -103 dBm | 100.0% 100.0% 66.5% 52.0% -109 dBm | 100.0% 100.0% 99.4% 91.3% -87 dBm |
| North Street, MI | 97.3% 97.3% 59.0% 37.1% -101 dBm | 99.9% 99.9% 99.2% 51.6% -111 dBm | 94.6% 94.6% 75.2% 46.5% -95 dBm |
| Pearl Beach, MI | 100.0% 100.0% 20.0% 13.0% -98 dBm | 98.3% 98.3% 98.3% 75.7% -111 dBm | 99.1% 97.4% 99.1% 92.2% -84 dBm |
| Port Huron, MI | 100.0% 100.0% 100.0% 95.2% -95 dBm | 99.5% 99.5% 99.5% 81.9% -96 dBm | 99.5% 99.5% 99.5% 99.5% -74 dBm |
| Ruby, MI | 96.7% 96.7% 17.6% 1.1% -106 dBm | 100.0% 100.0% 100.0% 86.8% -100 dBm | 100.0% 100.0% 97.8% 87.9% -85 dBm |
| Saint Clair, MI | 100.0% 100.0% 68.2% 42.9% -101 dBm | 99.8% 99.8% 94.3% 75.8% -110 dBm | 94.9% 94.9% 84.3% 66.7% -89 dBm |
| Smiths Creek, MI | 100.0% 100.0% 81.1% 48.8% -100 dBm | 99.9% 99.9% 95.4% 45.8% -111 dBm | 80.2% 80.2% 71.3% 55.1% -92 dBm |
| St. Clair, MI | 100.0% 100.0% 94.4% 73.2% -102 dBm | 98.6% 98.6% 98.6% 84.5% -101 dBm | 98.6% 98.6% 98.6% 98.6% -76 dBm |
| Yale, MI | 100.0% 100.0% 100.0% 91.7% -91 dBm | 100.0% 100.0% 8.3% 8.3% -96 dBm | 100.0% 100.0% 100.0% 94.4% -89 dBm |
| Memphis, MI | 100.0% 100.0% 53.8% 46.2% -90 dBm | 100.0% 100.0% 100.0% 88.5% -109 dBm | 100.0% 100.0% 100.0% 84.6% -90 dBm |
| New Baltimore, MI | 100.0% 100.0% 72.0% 47.7% -94 dBm | 100.0% 100.0% 98.1% 86.9% -105 dBm | 100.0% 100.0% 100.0% 90.7% -86 dBm |
| Richmond, MI | 100.0% 100.0% 95.9% 87.7% -82 dBm | 100.0% 100.0% 100.0% 98.6% -94 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |