Coverage rankings for Snohomish County, WA
T-Mobile currently ranks first for coverage in this area, with a coverage score of 46.6. 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 | 46.6 | 40.2% | 40.2% | 35.3% | 27.7% | -90 dBm |
| 2 | Verizon | 45.9 | 54.4% | 54.3% | 22.9% | 17.9% | -97 dBm |
| 3 | AT&T | 43.8 | 49.9% | 49.9% | 35.8% | 23.0% | -112 dBm |
Scores include coverage area, network type, and average signal strength.
Cell phone coverage map for Snohomish County, WA
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
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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 Snohomish County, WA
#1
T-Mobile
Coverage Score 46.6
In Snohomish County, WA
- Overall
- 40.2%
- 4G LTE
- 40.2%
- 5G
- 35.3%
- Fast 5G
- 27.7%
Average Signal -90 dBm
#2
Verizon
Coverage Score 45.9
In Snohomish County, WA
- Overall
- 54.4%
- 4G LTE
- 54.3%
- 5G
- 22.9%
- Fast 5G
- 17.9%
Average Signal -97 dBm
#3
AT&T
Coverage Score 43.8
In Snohomish County, WA
- Overall
- 49.9%
- 4G LTE
- 49.9%
- 5G
- 35.8%
- Fast 5G
- 23.0%
Average Signal -112 dBm
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Coverage by city in Snohomish County, WA
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Alderwood Manor, WA | 100.0% 100.0% 100.0% 100.0% -85 dBm | 100.0% 100.0% 100.0% 57.7% -102 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Arlington, WA | 100.0% 100.0% 82.2% 57.1% -92 dBm | 100.0% 100.0% 99.6% 76.0% -103 dBm | 100.0% 100.0% 100.0% 97.5% -84 dBm |
| Arlington Heights, WA | 99.6% 99.6% 49.2% 23.9% -97 dBm | 98.7% 98.7% 97.1% 73.1% -112 dBm | 97.1% 97.1% 93.3% 79.4% -89 dBm |
| Bothell East, WA | 100.0% 100.0% 100.0% 98.1% -87 dBm | 100.0% 100.0% 100.0% 68.5% -97 dBm | 100.0% 100.0% 100.0% 100.0% -81 dBm |
| Bothell West, WA | 100.0% 100.0% 100.0% 95.6% -85 dBm | 100.0% 100.0% 100.0% 69.9% -99 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Brier, WA | 100.0% 100.0% 100.0% 98.4% -86 dBm | 100.0% 100.0% 100.0% 62.3% -103 dBm | 100.0% 100.0% 100.0% 100.0% -83 dBm |
| Bryant, WA | 97.1% 97.1% 24.0% 4.0% -104 dBm | 100.0% 100.0% 89.1% 22.3% -115 dBm | 100.0% 100.0% 97.1% 78.9% -89 dBm |
| Bunk Foss, WA | 100.0% 100.0% 100.0% 98.1% -92 dBm | 99.1% 99.1% 95.3% 64.2% -105 dBm | 100.0% 100.0% 99.1% 86.8% -88 dBm |
| Canyon Creek, WA | 87.3% 87.3% 37.6% 19.7% -99 dBm | 75.1% 75.1% 69.4% 50.3% -111 dBm | 68.2% 68.2% 48.6% 23.7% -99 dBm |
| Cathcart, WA | 100.0% 100.0% 95.5% 88.2% -91 dBm | 100.0% 100.0% 100.0% 67.3% -106 dBm | 99.1% 99.1% 99.1% 90.0% -87 dBm |
| Cavalero, WA | 100.0% 100.0% 100.0% 87.5% -80 dBm | 100.0% 100.0% 100.0% 43.8% -106 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Chain Lake, WA | 99.7% 99.7% 42.2% 25.6% -98 dBm | 97.7% 97.3% 74.1% 51.5% -116 dBm | 99.7% 99.7% 95.3% 81.4% -89 dBm |
| Clearview, WA | 100.0% 100.0% 99.2% 95.4% -94 dBm | 100.0% 100.0% 100.0% 60.0% -105 dBm | 100.0% 100.0% 100.0% 89.2% -89 dBm |
| Darrington, WA | 100.0% 100.0% 66.0% 28.0% -91 dBm | 100.0% 100.0% 0.0% 0.0% -110 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Eastmont, WA | 100.0% 100.0% 98.6% 94.4% -94 dBm | 100.0% 100.0% 99.3% 54.2% -108 dBm | 100.0% 100.0% 100.0% 92.3% -82 dBm |
| Edmonds, WA | 100.0% 100.0% 97.2% 94.4% -89 dBm | 100.0% 100.0% 97.2% 74.5% -99 dBm | 100.0% 100.0% 100.0% 96.8% -81 dBm |
| Esperance, WA | 100.0% 100.0% 100.0% 100.0% -74 dBm | 100.0% 100.0% 100.0% 72.2% -93 dBm | 100.0% 100.0% 100.0% 100.0% -75 dBm |
| Everett, WA | 98.1% 98.1% 85.2% 83.0% -87 dBm | 96.5% 96.4% 90.0% 53.7% -104 dBm | 88.4% 88.4% 86.9% 85.1% -80 dBm |
| Fobes Hill, WA | 100.0% 100.0% 100.0% 99.2% -89 dBm | 89.4% 87.9% 84.1% 42.4% -107 dBm | 100.0% 100.0% 97.0% 90.9% -88 dBm |
| Gold Bar, WA | 100.0% 100.0% 0.0% 0.0% -91 dBm | 100.0% 100.0% 100.0% 96.6% -107 dBm | 100.0% 100.0% 100.0% 93.1% -88 dBm |
| Granite Falls, WA | 100.0% 100.0% 62.3% 47.5% -93 dBm | 98.4% 98.4% 90.2% 54.1% -109 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Hat Island, WA | 100.0% 100.0% 77.8% 61.1% -98 dBm | 100.0% 100.0% 94.4% 16.7% -116 dBm | 100.0% 100.0% 100.0% 100.0% -82 dBm |
| High Bridge, WA | 100.0% 100.0% 82.8% 52.0% -100 dBm | 100.0% 100.0% 92.4% 62.6% -113 dBm | 96.5% 96.5% 83.3% 57.1% -94 dBm |
| Index, WA | 28.6% 28.6% 0.0% 0.0% -110 dBm | 85.7% 85.7% 0.0% 0.0% -120 dBm | N/A N/A N/A N/A N/A |
| Kayak Point, WA | 100.0% 100.0% 15.9% 3.2% -99 dBm | 98.7% 98.7% 65.0% 39.5% -118 dBm | 84.7% 84.7% 67.5% 47.1% -95 dBm |
| Lake Bosworth, WA | 100.0% 100.0% 20.4% 6.5% -98 dBm | 100.0% 100.0% 58.3% 28.7% -119 dBm | 75.9% 75.9% 57.4% 27.8% -98 dBm |
| Lake Cassidy, WA | 100.0% 100.0% 66.4% 55.6% -95 dBm | 99.3% 99.3% 88.5% 58.3% -110 dBm | 99.0% 99.0% 96.3% 75.9% -88 dBm |
| Lake Goodwin, WA | 100.0% 100.0% 37.6% 19.1% -94 dBm | 100.0% 100.0% 99.4% 83.4% -110 dBm | 100.0% 100.0% 100.0% 93.0% -85 dBm |
| Lake Ketchum, WA | 100.0% 100.0% 6.8% 2.3% -88 dBm | 92.0% 92.0% 51.1% 14.8% -118 dBm | 95.5% 95.5% 47.7% 25.0% -97 dBm |
| Lake Roesiger, WA | 100.0% 100.0% 1.0% 0.0% -96 dBm | 100.0% 100.0% 99.0% 94.2% -105 dBm | 99.0% 99.0% 84.6% 51.9% -95 dBm |
| Lake Stevens, WA | 100.0% 100.0% 100.0% 99.3% -89 dBm | 100.0% 100.0% 100.0% 82.2% -99 dBm | 100.0% 100.0% 100.0% 98.2% -80 dBm |
| Lake Stickney, WA | 100.0% 100.0% 100.0% 100.0% -87 dBm | 100.0% 100.0% 100.0% 79.3% -97 dBm | 100.0% 100.0% 100.0% 98.3% -81 dBm |
| Larch Way, WA | 100.0% 100.0% 100.0% 100.0% -86 dBm | 100.0% 100.0% 100.0% 62.5% -95 dBm | 100.0% 100.0% 100.0% 100.0% -75 dBm |
| Lochsloy, WA | 100.0% 100.0% 46.9% 19.8% -101 dBm | 99.0% 99.0% 72.9% 25.6% -116 dBm | 95.2% 95.2% 70.5% 44.4% -96 dBm |
| Lynnwood, WA | 99.5% 99.5% 99.5% 98.2% -81 dBm | 100.0% 100.0% 99.5% 71.4% -94 dBm | 100.0% 100.0% 100.0% 99.1% -77 dBm |
| Machias, WA | 100.0% 100.0% 97.2% 62.0% -102 dBm | 100.0% 100.0% 98.6% 63.4% -109 dBm | 100.0% 100.0% 100.0% 95.8% -83 dBm |
| Maltby, WA | 100.0% 100.0% 97.8% 93.1% -90 dBm | 99.8% 99.8% 98.1% 68.8% -106 dBm | 100.0% 100.0% 99.1% 88.8% -87 dBm |
| Martha Lake, WA | 100.0% 100.0% 96.9% 91.4% -90 dBm | 100.0% 100.0% 100.0% 73.4% -99 dBm | 100.0% 100.0% 100.0% 97.7% -81 dBm |
| Marysville, WA | 100.0% 100.0% 92.8% 75.8% -87 dBm | 100.0% 100.0% 100.0% 72.4% -96 dBm | 100.0% 100.0% 100.0% 99.5% -80 dBm |
| May Creek, WA | 100.0% 100.0% 0.0% 0.0% -93 dBm | 100.0% 100.0% 94.1% 76.5% -119 dBm | 100.0% 100.0% 100.0% 35.3% -98 dBm |
| Meadowdale, WA | 92.6% 92.6% 88.9% 81.5% -95 dBm | 96.3% 96.3% 77.8% 63.0% -113 dBm | 88.9% 88.9% 81.5% 74.1% -86 dBm |
| Mill Creek, WA | 100.0% 100.0% 98.4% 96.1% -88 dBm | 100.0% 100.0% 100.0% 63.8% -101 dBm | 100.0% 100.0% 100.0% 100.0% -79 dBm |
| Mill Creek East, WA | 100.0% 100.0% 100.0% 95.9% -86 dBm | 100.0% 100.0% 100.0% 73.0% -97 dBm | 100.0% 100.0% 100.0% 98.4% -82 dBm |
| Monroe, WA | 100.0% 100.0% 92.0% 82.3% -86 dBm | 100.0% 100.0% 100.0% 77.7% -100 dBm | 100.0% 100.0% 100.0% 96.0% -82 dBm |
| Monroe North, WA | 100.0% 100.0% 74.1% 60.3% -91 dBm | 100.0% 100.0% 100.0% 81.0% -107 dBm | 100.0% 100.0% 100.0% 93.1% -86 dBm |
| Mountlake Terrace, WA | 100.0% 100.0% 98.2% 92.0% -85 dBm | 100.0% 100.0% 100.0% 77.0% -95 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Mukilteo, WA | 100.0% 100.0% 94.8% 90.2% -92 dBm | 99.4% 99.4% 92.5% 57.8% -107 dBm | 99.4% 99.4% 99.4% 97.1% -79 dBm |
| North Lynnwood, WA | 100.0% 100.0% 100.0% 100.0% -86 dBm | 100.0% 100.0% 100.0% 81.8% -96 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| North Sultan, WA | 93.8% 93.8% 0.0% 0.0% -95 dBm | 100.0% 100.0% 100.0% 93.8% -109 dBm | 100.0% 100.0% 100.0% 93.8% -80 dBm |
| Northwest Stanwood, WA | 100.0% 100.0% 35.0% 10.0% -100 dBm | 100.0% 100.0% 80.0% 35.0% -114 dBm | 100.0% 100.0% 20.0% 5.0% -96 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 Snohomish County, WA 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.