Coverage rankings for St. Charles County, MO
T-Mobile currently ranks first for coverage in this area, with a coverage score of 89.0. 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 | T-Mobile | 89.0 | 91.5% | 90.9% | 86.3% | 72.8% | -88 dBm |
| 2 | Verizon | 85.6 | 96.9% | 96.9% | 75.1% | 59.0% | -96 dBm |
| 3 | AT&T | 81.5 | 97.1% | 95.5% | 83.4% | 53.5% | -110 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. Charles County, MO
#1
T-Mobile
Coverage Score 89.0
In St. Charles County, MO
- Overall
- 91.5%
- 4G LTE
- 90.9%
- 5G
- 86.3%
- Fast 5G
- 72.8%
Average Signal -88 dBm
#2
Verizon
Coverage Score 85.6
In St. Charles County, MO
- Overall
- 96.9%
- 4G LTE
- 96.9%
- 5G
- 75.1%
- Fast 5G
- 59.0%
Average Signal -96 dBm
#3
AT&T
Coverage Score 81.5
In St. Charles County, MO
- Overall
- 97.1%
- 4G LTE
- 95.5%
- 5G
- 83.4%
- Fast 5G
- 53.5%
Average Signal -110 dBm
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Coverage by city in St. Charles County, MO
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Augusta, MO | 100.0% 100.0% 8.0% 0.0% -100 dBm | 100.0% 100.0% 92.0% 36.0% -116 dBm | 84.0% 84.0% 76.0% 52.0% -92 dBm |
| Cottleville, MO | 100.0% 100.0% 89.7% 84.5% -87 dBm | 100.0% 100.0% 97.4% 64.7% -100 dBm | 100.0% 100.0% 100.0% 97.4% -83 dBm |
| Dardenne Prairie, MO | 100.0% 100.0% 96.8% 90.4% -90 dBm | 100.0% 100.0% 99.2% 72.8% -104 dBm | 100.0% 100.0% 100.0% 92.0% -86 dBm |
| Defiance, MO | 100.0% 100.0% 76.9% 38.5% -101 dBm | 100.0% 100.0% 92.3% 61.5% -114 dBm | 100.0% 100.0% 100.0% 96.2% -90 dBm |
| Flint Hill, MO | 100.0% 100.0% 98.6% 78.6% -92 dBm | 100.0% 100.0% 98.6% 71.4% -106 dBm | 100.0% 100.0% 94.3% 58.6% -93 dBm |
| Foristell, MO | 100.0% 100.0% 62.7% 33.3% -102 dBm | 100.0% 80.0% 100.0% 80.7% -103 dBm | 100.0% 100.0% 100.0% 96.0% -83 dBm |
| Josephville, MO | 100.0% 100.0% 84.5% 53.5% -101 dBm | 98.6% 93.0% 67.6% 33.8% -113 dBm | 98.6% 98.6% 91.5% 66.2% -95 dBm |
| Lake Saint Louis, MO | 100.0% 100.0% 88.5% 81.6% -87 dBm | 100.0% 95.4% 100.0% 85.3% -103 dBm | 100.0% 100.0% 100.0% 96.3% -84 dBm |
| New Melle, MO | 100.0% 100.0% 92.7% 73.2% -90 dBm | 100.0% 100.0% 100.0% 75.6% -106 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| O’Fallon, MO | 100.0% 100.0% 84.6% 71.8% -92 dBm | 99.7% 98.8% 96.1% 81.5% -102 dBm | 99.9% 99.9% 99.2% 93.7% -82 dBm |
| Portage Des Sioux, MO | 100.0% 100.0% 23.5% 11.8% -95 dBm | 100.0% 100.0% 94.1% 82.4% -116 dBm | 100.0% 100.0% 70.6% 29.4% -99 dBm |
| Saint Charles, MO | 100.0% 100.0% 90.4% 80.8% -89 dBm | 100.0% 99.8% 99.8% 84.4% -99 dBm | 100.0% 100.0% 100.0% 98.0% -79 dBm |
| St. Paul, MO | 100.0% 100.0% 83.4% 48.1% -102 dBm | 100.0% 100.0% 93.4% 66.3% -113 dBm | 100.0% 100.0% 100.0% 97.2% -81 dBm |
| Saint Peters, MO | 100.0% 100.0% 99.5% 93.9% -87 dBm | 99.8% 99.5% 98.6% 62.7% -103 dBm | 100.0% 100.0% 100.0% 98.0% -79 dBm |
| Weldon Spring, MO | 100.0% 100.0% 83.7% 67.4% -99 dBm | 98.4% 98.4% 93.2% 52.6% -110 dBm | 87.9% 87.9% 81.6% 61.6% -90 dBm |
| Weldon Spring Heights, MO | 100.0% 100.0% 100.0% 100.0% -93 dBm | 100.0% 100.0% 66.7% 66.7% -113 dBm | 100.0% 100.0% 100.0% 66.7% -83 dBm |
| Wentzville, MO | 100.0% 100.0% 91.9% 80.3% -89 dBm | 98.9% 96.8% 94.1% 79.6% -108 dBm | 100.0% 100.0% 99.1% 95.3% -83 dBm |
| West Alton, MO | 100.0% 100.0% 92.6% 78.1% -99 dBm | 98.2% 98.2% 83.3% 33.6% -114 dBm | 92.7% 92.7% 84.2% 65.4% -94 dBm |
| Three Creeks, MO | 100.0% 100.0% 77.1% 40.7% -97 dBm | 100.0% 100.0% 99.2% 59.3% -105 dBm | 100.0% 100.0% 100.0% 97.5% -85 dBm |
| Wildwood, MO | 96.7% 96.7% 65.9% 37.2% -102 dBm | 99.1% 99.1% 61.6% 45.1% -110 dBm | 85.2% 85.1% 73.0% 51.1% -92 dBm |