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

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

Coverage rankings for Benton County, WA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 91.0. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile91.095.2%95.2%87.1%74.6% -89 dBm
2AT&T75.895.3%95.1%71.5%43.0% -113 dBm
3Verizon66.697.5%97.5%29.4%16.3% -94 dBm

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

Cell phone coverage map for Benton 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 Benton County, WA

#1

T-Mobile

Coverage Score 91.0
In Benton County, WA
Overall
95.2%
4G LTE
95.2%
5G
87.1%
Fast 5G
74.6%
Average Signal -89 dBm
#2

AT&T

Coverage Score 75.8
In Benton County, WA
Overall
95.3%
4G LTE
95.1%
5G
71.5%
Fast 5G
43.0%
Average Signal -113 dBm
#3

Verizon

Coverage Score 66.6
In Benton County, WA
Overall
97.5%
4G LTE
97.5%
5G
29.4%
Fast 5G
16.3%
Average Signal -94 dBm
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Coverage by city in Benton County, WA

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

CityVerizonAT&TT-Mobile
Benton City, WA 100.0% 100.0% 9.4% 3.1% -83 dBm 100.0% 100.0% 100.0% 98.4% -103 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Finley, WA 100.0% 100.0% 76.3% 64.8% -87 dBm 100.0% 100.0% 100.0% 76.3% -102 dBm 100.0% 100.0% 100.0% 100.0% -86 dBm
Kennewick, WA 100.0% 100.0% 86.6% 76.5% -83 dBm 100.0% 100.0% 97.2% 66.1% -103 dBm 100.0% 100.0% 100.0% 98.7% -81 dBm
Paterson, WA 95.5% 95.5% 20.4% 11.1% -97 dBm 92.4% 92.4% 53.0% 22.2% -116 dBm 91.3% 91.3% 81.3% 65.0% -92 dBm
Plymouth, WA 99.0% 99.0% 21.8% 12.1% -91 dBm 96.7% 96.6% 74.2% 50.7% -113 dBm 97.7% 97.7% 92.7% 88.9% -85 dBm
Prosser, WA 100.0% 100.0% 97.0% 83.0% -84 dBm 100.0% 100.0% 99.3% 78.5% -98 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Richland, WA 100.0% 100.0% 93.1% 80.4% -86 dBm 99.9% 99.9% 97.7% 71.0% -101 dBm 100.0% 100.0% 99.9% 96.9% -82 dBm
West Richland, WA 100.0% 100.0% 76.6% 45.7% -90 dBm 100.0% 99.7% 85.5% 50.9% -111 dBm 100.0% 100.0% 98.8% 90.8% -86 dBm
Grandview, WA 100.0% 100.0% 89.8% 69.5% -86 dBm 100.0% 100.0% 99.4% 62.1% -100 dBm 100.0% 100.0% 100.0% 100.0% -79 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 Benton 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.