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

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

Coverage rankings for Walla Walla County, WA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 61.0. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile61.064.3%64.2%48.3%35.0% -94 dBm
2Verizon48.172.9%72.9%10.1%6.2% -96 dBm
3AT&T42.164.5%64.5%15.5%8.9% -112 dBm

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

Cell phone coverage map for Walla Walla 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 Walla Walla County, WA

#1

T-Mobile

Coverage Score 61.0
In Walla Walla County, WA
Overall
64.3%
4G LTE
64.2%
5G
48.3%
Fast 5G
35.0%
Average Signal -94 dBm
#2

Verizon

Coverage Score 48.1
In Walla Walla County, WA
Overall
72.9%
4G LTE
72.9%
5G
10.1%
Fast 5G
6.2%
Average Signal -96 dBm
#3

AT&T

Coverage Score 42.1
In Walla Walla County, WA
Overall
64.5%
4G LTE
64.5%
5G
15.5%
Fast 5G
8.9%
Average Signal -112 dBm
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Coverage by city in Walla Walla County, WA

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

CityVerizonAT&TT-Mobile
Burbank, WA 100.0% 100.0% 26.0% 20.7% -80 dBm 100.0% 100.0% 99.0% 76.9% -113 dBm 100.0% 100.0% 99.5% 98.6% -83 dBm
College Place, WA 100.0% 100.0% 96.7% 88.0% -83 dBm 98.9% 97.8% 73.9% 46.7% -109 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Dixie, WA 91.7% 91.7% 0.0% 0.0% -70 dBm 83.3% 83.3% 0.0% 0.0% -88 dBm 83.3% 83.3% 83.3% 83.3% -64 dBm
Garrett, WA 100.0% 100.0% 98.5% 90.9% -91 dBm 98.5% 98.5% 69.7% 27.3% -112 dBm 100.0% 100.0% 100.0% 100.0% -85 dBm
Prescott, WA 100.0% 100.0% 0.0% 0.0% -95 dBm 100.0% 100.0% 0.0% 0.0% -111 dBm 100.0% 100.0% 80.0% 10.0% -100 dBm
Touchet, WA 100.0% 100.0% 0.0% 0.0% -75 dBm 100.0% 100.0% 0.0% 0.0% -94 dBm 100.0% 100.0% 100.0% 100.0% -83 dBm
Waitsburg, WA 100.0% 100.0% 100.0% 100.0% -75 dBm 100.0% 100.0% 0.0% 0.0% -83 dBm 100.0% 100.0% 100.0% 100.0% -71 dBm
Walla Walla, WA 100.0% 100.0% 96.7% 80.7% -84 dBm 99.2% 99.2% 84.2% 54.2% -108 dBm 100.0% 100.0% 100.0% 92.1% -82 dBm
Walla Walla East, WA 100.0% 100.0% 98.3% 91.4% -83 dBm 100.0% 100.0% 91.4% 58.6% -109 dBm 100.0% 100.0% 100.0% 81.0% -93 dBm
Wallula, WA 100.0% 100.0% 0.0% 0.0% -70 dBm 100.0% 100.0% 100.0% 100.0% -110 dBm 100.0% 100.0% 100.0% 100.0% -80 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 Walla Walla 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.