Sweetwater County, WY Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Sweetwater County, WY

Coverage rankings for Sweetwater County, WY

T-Mobile currently ranks first for coverage in this area, with a coverage score of 40.4. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile40.446.9%46.8%22.8%12.2% -98 dBm
2AT&T34.961.4%61.4%0.6%0.5% -112 dBm
3Verizon29.440.8%40.8%1.7%1.2% -101 dBm

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

Cell phone coverage map for Sweetwater County, WY

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 Sweetwater County, WY

#1

T-Mobile

Coverage Score 40.4
In Sweetwater County, WY
Overall
46.9%
4G LTE
46.8%
5G
22.8%
Fast 5G
12.2%
Average Signal -98 dBm
#2

AT&T

Coverage Score 34.9
In Sweetwater County, WY
Overall
61.4%
4G LTE
61.4%
5G
0.6%
Fast 5G
0.5%
Average Signal -112 dBm
#3

Verizon

Coverage Score 29.4
In Sweetwater County, WY
Overall
40.8%
4G LTE
40.8%
5G
1.7%
Fast 5G
1.2%
Average Signal -101 dBm
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Coverage by city in Sweetwater County, WY

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

CityVerizonAT&TT-Mobile
Arrowhead Springs, WY 84.0% 84.0% 0.0% 0.0% -108 dBm 100.0% 100.0% 0.0% 0.0% -100 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Bairoil, WY N/A N/A N/A N/A N/A 100.0% 100.0% 0.0% 0.0% -115 dBm 39.4% 39.4% 0.0% 0.0% -110 dBm
Clearview Acres, WY 100.0% 100.0% 100.0% 100.0% -80 dBm 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Eden, WY 100.0% 100.0% 0.0% 0.0% -89 dBm 98.1% 98.1% 0.0% 0.0% -101 dBm 100.0% 100.0% 100.0% 99.4% -83 dBm
Farson, WY 99.6% 99.6% 0.0% 0.0% -90 dBm 99.6% 99.6% 0.0% 0.0% -101 dBm 100.0% 100.0% 99.6% 97.5% -82 dBm
Granger, WY 100.0% 100.0% 0.0% 0.0% -91 dBm 100.0% 100.0% 0.0% 0.0% -105 dBm 100.0% 100.0% 100.0% 100.0% -67 dBm
Green River, WY 99.7% 99.7% 93.5% 83.8% -81 dBm 89.7% 89.7% 0.0% 0.0% -98 dBm 18.4% 18.4% 7.8% 3.4% -98 dBm
James Town, WY 97.4% 97.4% 34.2% 18.4% -84 dBm 82.9% 82.9% 0.0% 0.0% -104 dBm 31.6% 31.6% 0.0% 0.0% -108 dBm
Little America, WY 100.0% 100.0% 0.0% 0.0% -77 dBm 100.0% 100.0% 0.0% 0.0% -98 dBm 100.0% 100.0% 85.9% 43.8% -96 dBm
McKinnon, WY N/A N/A N/A N/A N/A 100.0% 100.0% 0.0% 0.0% -102 dBm N/A N/A N/A N/A N/A
North Rock Springs, WY 98.6% 98.6% 67.0% 57.5% -91 dBm 98.0% 98.0% 0.0% 0.0% -104 dBm 100.0% 100.0% 89.5% 58.4% -91 dBm
Point Of Rocks, WY 100.0% 100.0% 0.0% 0.0% -80 dBm 96.0% 96.0% 0.0% 0.0% -96 dBm 80.0% 80.0% 40.0% 6.0% -104 dBm
Purple Sage, WY 100.0% 100.0% 100.0% 90.0% -91 dBm 100.0% 100.0% 0.0% 0.0% -95 dBm 100.0% 100.0% 100.0% 100.0% -88 dBm
Reliance, WY 96.7% 96.7% 73.9% 52.2% -94 dBm 95.7% 95.7% 0.0% 0.0% -97 dBm 80.4% 80.4% 48.9% 17.4% -100 dBm
Rock Springs, WY 100.0% 100.0% 88.6% 84.2% -79 dBm 100.0% 100.0% 0.0% 0.0% -96 dBm 100.0% 100.0% 99.8% 95.0% -77 dBm
Superior, WY 74.1% 74.1% 0.0% 0.0% -104 dBm 3.7% 3.7% 0.0% 0.0% -110 dBm 59.3% 59.3% 22.2% 11.1% -101 dBm
Table Rock, WY 100.0% 100.0% 0.0% 0.0% -81 dBm 100.0% 100.0% 0.0% 0.0% -109 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Wamsutter, WY 100.0% 100.0% 0.0% 0.0% -74 dBm 100.0% 100.0% 0.0% 0.0% -102 dBm 100.0% 100.0% 37.8% 0.0% -100 dBm
Washam, WY N/A N/A N/A N/A N/A 84.0% 84.0% 42.7% 28.0% -118 dBm 100.0% 100.0% 97.3% 89.3% -82 dBm
Fontenelle, WY 10.0% 10.0% 0.0% 0.0% -110 dBm 46.3% 46.3% 0.0% 0.0% -115 dBm 100.0% 100.0% 0.0% 0.0% -90 dBm
Lonetree, WY N/A N/A N/A N/A N/A 91.7% 91.7% 0.0% 0.0% -112 dBm 1.0% 1.0% 0.0% 0.0% -110 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 Sweetwater County, WY 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.