Jefferson County, WA Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Jefferson County, WA

Coverage rankings for Jefferson County, WA

Verizon currently ranks first for coverage in this area, with a coverage score of 33.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1Verizon33.147.3%47.1%4.4%1.9% -100 dBm
2AT&T28.531.6%31.6%17.4%13.3% -114 dBm
3T-Mobile28.022.1%22.0%17.4%10.0% -96 dBm

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

Cell phone coverage map for Jefferson 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
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 Jefferson County, WA

#1

Verizon

Coverage Score 33.1
In Jefferson County, WA
Overall
47.3%
4G LTE
47.1%
5G
4.4%
Fast 5G
1.9%
Average Signal -100 dBm
#2

AT&T

Coverage Score 28.5
In Jefferson County, WA
Overall
31.6%
4G LTE
31.6%
5G
17.4%
Fast 5G
13.3%
Average Signal -114 dBm
#3

T-Mobile

Coverage Score 28.0
In Jefferson County, WA
Overall
22.1%
4G LTE
22.0%
5G
17.4%
Fast 5G
10.0%
Average Signal -96 dBm
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Coverage by city in Jefferson County, WA

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

CityVerizonAT&TT-Mobile
Brinnon, WA 100.0% 100.0% 56.1% 34.2% -101 dBm 96.7% 96.7% 78.1% 64.7% -113 dBm 77.3% 77.3% 68.8% 48.7% -93 dBm
Chimacum, WA 100.0% 100.0% 22.3% 12.9% -97 dBm 98.2% 98.2% 73.9% 55.2% -112 dBm 96.1% 96.1% 87.1% 56.0% -93 dBm
Marrowstone, WA 97.1% 97.1% 15.4% 8.6% -106 dBm 98.3% 98.3% 44.0% 23.4% -113 dBm 66.3% 66.3% 53.1% 38.9% -94 dBm
Nordland, WA 97.2% 97.2% 15.9% 8.5% -106 dBm 98.3% 98.3% 44.3% 23.9% -113 dBm 66.5% 66.5% 53.4% 39.2% -94 dBm
Port Hadlock, WA 100.0% 100.0% 18.2% 10.0% -100 dBm 98.5% 98.5% 64.7% 49.7% -111 dBm 91.8% 91.8% 75.0% 47.1% -94 dBm
Port Hadlock-Irondale, WA 100.0% 100.0% 9.3% 4.9% -98 dBm 99.5% 99.5% 86.9% 68.9% -113 dBm 97.8% 97.8% 92.9% 58.5% -92 dBm
Port Ludlow, WA 100.0% 100.0% 32.3% 20.2% -94 dBm 99.4% 99.4% 27.6% 15.2% -107 dBm 99.7% 99.7% 98.1% 81.7% -89 dBm
Port Townsend, WA 100.0% 100.0% 16.5% 8.2% -92 dBm 100.0% 100.0% 89.2% 78.4% -104 dBm 99.0% 99.0% 96.4% 78.4% -87 dBm
Quilcene, WA 99.2% 99.2% 0.4% 0.4% -94 dBm 84.9% 84.9% 53.0% 48.6% -112 dBm 66.9% 66.9% 59.0% 43.8% -92 dBm
Queets, WA 100.0% 100.0% 0.0% 0.0% -88 dBm 95.1% 95.1% 92.7% 90.2% -103 dBm 95.1% 95.1% 95.1% 78.0% -89 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 Jefferson 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.