Washington County, MN Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Washington County, MN

Coverage rankings for Washington County, MN

T-Mobile currently ranks first for coverage in this area, with a coverage score of 96.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile96.398.2%98.2%95.4%87.2% -84 dBm
2Verizon95.099.7%99.7%95.6%84.0% -93 dBm
3AT&T85.299.5%98.7%92.3%57.7% -108 dBm

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

Cell phone coverage map for Washington County, MN

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.

Loading coverage map...

Cell phone coverage by network in Washington County, MN

#1

T-Mobile

Coverage Score 96.3
In Washington County, MN
Overall
98.2%
4G LTE
98.2%
5G
95.4%
Fast 5G
87.2%
Average Signal -84 dBm
#2

Verizon

Coverage Score 95.0
In Washington County, MN
Overall
99.7%
4G LTE
99.7%
5G
95.6%
Fast 5G
84.0%
Average Signal -93 dBm
#3

AT&T

Coverage Score 85.2
In Washington County, MN
Overall
99.5%
4G LTE
98.7%
5G
92.3%
Fast 5G
57.7%
Average Signal -108 dBm
Sponsored US Mobile

Coverage varies by neighborhood. Your carrier shouldn’t.

US Mobile lets you switch between all three major networks, so you can choose the one that works best where you actually use your phone.

Choose your network
Dark Star Light Speed Warp 5G
Unlimited plans from
$22.50/mo
Phone + home internet bundle from
$47/mo
Shop US Mobile

Pricing, network access, switching terms, and home internet availability may vary.

Coverage by city in Washington County, MN

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

CityVerizonAT&TT-Mobile
Afton, MN 99.8% 99.8% 98.5% 84.6% -93 dBm 100.0% 100.0% 94.0% 56.6% -112 dBm 94.8% 94.8% 87.4% 72.2% -88 dBm
Bayport, MN 100.0% 100.0% 100.0% 100.0% -85 dBm 100.0% 100.0% 100.0% 40.5% -110 dBm 100.0% 100.0% 100.0% 95.2% -80 dBm
Birchwood Village, MN 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 100.0% 66.7% -107 dBm 100.0% 100.0% 100.0% 100.0% -87 dBm
Cottage Grove, MN 100.0% 100.0% 99.6% 90.3% -90 dBm 99.9% 99.9% 97.6% 59.5% -106 dBm 99.9% 99.9% 99.6% 97.0% -80 dBm
Dellwood, MN 100.0% 100.0% 100.0% 86.2% -99 dBm 98.5% 96.9% 98.5% 47.7% -107 dBm 100.0% 100.0% 100.0% 89.2% -90 dBm
Forest Lake, MN 100.0% 100.0% 99.2% 88.8% -92 dBm 99.4% 99.4% 97.6% 62.1% -108 dBm 100.0% 100.0% 100.0% 92.9% -85 dBm
Grant, MN 100.0% 100.0% 94.4% 88.3% -91 dBm 99.5% 93.2% 98.8% 57.9% -107 dBm 100.0% 100.0% 100.0% 95.9% -83 dBm
Hugo, MN 100.0% 100.0% 100.0% 91.6% -91 dBm 98.4% 96.8% 93.8% 56.1% -106 dBm 100.0% 100.0% 99.7% 97.1% -82 dBm
Lake Elmo, MN 100.0% 100.0% 100.0% 96.9% -91 dBm 100.0% 100.0% 99.8% 62.6% -105 dBm 100.0% 100.0% 99.4% 92.5% -84 dBm
Lake St. Croix Beach, MN 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 100.0% 75.0% -117 dBm 100.0% 100.0% 100.0% 58.3% -98 dBm
Lakeland, MN 100.0% 100.0% 100.0% 97.9% -95 dBm 100.0% 100.0% 100.0% 41.7% -111 dBm 100.0% 100.0% 100.0% 91.7% -89 dBm
Lakeland Shores, MN 100.0% 100.0% 100.0% 100.0% -94 dBm 100.0% 100.0% 100.0% 57.1% -107 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Landfall, MN 100.0% 100.0% 100.0% 100.0% -73 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -63 dBm
Mahtomedi, MN 100.0% 100.0% 93.8% 82.7% -89 dBm 100.0% 100.0% 100.0% 79.0% -103 dBm 100.0% 100.0% 100.0% 97.5% -83 dBm
Marine On Saint Croix, MN 98.9% 98.9% 79.3% 47.8% -103 dBm 91.3% 83.7% 68.5% 28.3% -114 dBm 92.4% 92.4% 89.1% 66.3% -91 dBm
Newport, MN 100.0% 100.0% 100.0% 97.7% -89 dBm 100.0% 100.0% 100.0% 46.0% -102 dBm 100.0% 100.0% 100.0% 94.3% -82 dBm
Oak Park Heights, MN 100.0% 100.0% 100.0% 97.1% -89 dBm 100.0% 100.0% 100.0% 52.9% -108 dBm 100.0% 100.0% 100.0% 98.5% -83 dBm
Oakdale, MN 100.0% 100.0% 100.0% 98.8% -89 dBm 100.0% 99.6% 99.6% 73.8% -101 dBm 100.0% 100.0% 100.0% 99.2% -80 dBm
Pine Springs, MN 100.0% 100.0% 95.0% 90.0% -90 dBm 100.0% 100.0% 100.0% 100.0% -97 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Scandia, MN 96.9% 96.8% 77.5% 57.3% -98 dBm 99.3% 99.3% 52.9% 34.6% -112 dBm 96.2% 96.2% 92.3% 80.3% -86 dBm
St. Marys Point, MN 100.0% 100.0% 100.0% 100.0% -87 dBm 100.0% 100.0% 100.0% 22.2% -120 dBm 88.9% 88.9% 55.6% 11.1% -103 dBm
Saint Paul Park, MN 100.0% 100.0% 100.0% 81.2% -91 dBm 100.0% 100.0% 100.0% 68.1% -97 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Stillwater, MN 100.0% 100.0% 100.0% 96.8% -92 dBm 100.0% 98.4% 98.9% 74.9% -103 dBm 100.0% 100.0% 99.5% 97.9% -83 dBm
Willernie, MN 100.0% 100.0% 100.0% 75.0% -93 dBm 100.0% 100.0% 100.0% 75.0% -108 dBm 100.0% 100.0% 100.0% 100.0% -88 dBm
Woodbury, MN 100.0% 100.0% 99.3% 95.3% -88 dBm 99.9% 99.9% 98.5% 69.9% -104 dBm 100.0% 100.0% 99.9% 98.3% -81 dBm
Chisago City, MN 100.0% 100.0% 99.8% 88.5% -92 dBm 100.0% 100.0% 99.0% 67.1% -105 dBm 100.0% 100.0% 99.8% 89.8% -84 dBm
Columbus, MN 99.9% 99.9% 94.9% 71.8% -99 dBm 99.8% 99.8% 97.1% 52.2% -110 dBm 100.0% 100.0% 95.8% 74.5% -91 dBm
Hastings, MN 100.0% 100.0% 94.1% 86.6% -90 dBm 100.0% 100.0% 97.9% 92.0% -113 dBm 100.0% 100.0% 100.0% 99.6% -82 dBm
Lino Lakes, MN 100.0% 100.0% 100.0% 97.9% -92 dBm 98.9% 98.2% 97.3% 52.1% -105 dBm 100.0% 100.0% 99.7% 94.5% -83 dBm
Maplewood, MN 100.0% 100.0% 97.5% 92.6% -91 dBm 99.3% 99.3% 97.0% 74.1% -99 dBm 100.0% 100.0% 100.0% 99.5% -80 dBm
North St. Paul, MN 100.0% 100.0% 100.0% 95.5% -89 dBm 100.0% 100.0% 100.0% 89.4% -97 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Saint Paul, MN 100.0% 100.0% 99.8% 98.9% -86 dBm 99.5% 99.3% 98.6% 69.7% -95 dBm 100.0% 100.0% 100.0% 98.1% -77 dBm
White Bear Lake, MN 100.0% 100.0% 100.0% 95.2% -87 dBm 100.0% 100.0% 100.0% 80.7% -100 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Wyoming, MN 100.0% 100.0% 99.0% 85.5% -95 dBm 100.0% 100.0% 90.8% 50.6% -115 dBm 100.0% 100.0% 100.0% 99.8% -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 Washington County, MN 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.