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

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

Coverage rankings for Adams County, WA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 81.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile81.186.2%86.2%72.3%56.8% -91 dBm
2AT&T72.390.8%90.8%59.2%44.7% -113 dBm
3Verizon57.886.0%86.0%20.0%11.8% -96 dBm

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

Cell phone coverage map for Adams 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 Adams County, WA

#1

T-Mobile

Coverage Score 81.1
In Adams County, WA
Overall
86.2%
4G LTE
86.2%
5G
72.3%
Fast 5G
56.8%
Average Signal -91 dBm
#2

AT&T

Coverage Score 72.3
In Adams County, WA
Overall
90.8%
4G LTE
90.8%
5G
59.2%
Fast 5G
44.7%
Average Signal -113 dBm
#3

Verizon

Coverage Score 57.8
In Adams County, WA
Overall
86.0%
4G LTE
86.0%
5G
20.0%
Fast 5G
11.8%
Average Signal -96 dBm
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Coverage by city in Adams County, WA

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

CityVerizonAT&TT-Mobile
Benge, WA 51.7% 51.7% 0.0% 0.0% -103 dBm 55.9% 55.9% 13.6% 9.8% -119 dBm 31.7% 31.7% 16.7% 8.7% -99 dBm
Hatton, WA 100.0% 100.0% 90.0% 70.0% -91 dBm 100.0% 100.0% 20.0% 20.0% -106 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Lind, WA 100.0% 100.0% 0.0% 0.0% -85 dBm 100.0% 100.0% 83.3% 73.3% -112 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Othello, WA 100.0% 100.0% 98.4% 96.0% -80 dBm 100.0% 100.0% 100.0% 77.6% -93 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Ritzville, WA 100.0% 100.0% 93.0% 86.0% -80 dBm 100.0% 100.0% 91.2% 80.7% -109 dBm 100.0% 100.0% 100.0% 100.0% -72 dBm
Washtucna, WA 87.5% 87.5% 0.0% 0.0% -88 dBm 93.8% 93.8% 81.3% 81.3% -105 dBm 100.0% 100.0% 100.0% 87.5% -83 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 Adams 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.