Jo Daviess County, IL Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Jo Daviess County, IL

Coverage rankings for Jo Daviess County, IL

Verizon currently ranks first for coverage in this area, with a coverage score of 63.6. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1Verizon63.699.5%99.5%21.2%11.2% -97 dBm
2T-Mobile63.368.3%68.3%53.1%34.3% -94 dBm
3AT&T50.074.8%68.2%24.5%17.3% -112 dBm

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

Cell phone coverage map for Jo Daviess County, IL

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 Jo Daviess County, IL

#1

Verizon

Coverage Score 63.6
In Jo Daviess County, IL
Overall
99.5%
4G LTE
99.5%
5G
21.2%
Fast 5G
11.2%
Average Signal -97 dBm
#2

T-Mobile

Coverage Score 63.3
In Jo Daviess County, IL
Overall
68.3%
4G LTE
68.3%
5G
53.1%
Fast 5G
34.3%
Average Signal -94 dBm
#3

AT&T

Coverage Score 50.0
In Jo Daviess County, IL
Overall
74.8%
4G LTE
68.2%
5G
24.5%
Fast 5G
17.3%
Average Signal -112 dBm
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Coverage by city in Jo Daviess County, IL

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

CityVerizonAT&TT-Mobile
Apple Canyon Lake, IL 100.0% 100.0% 1.1% 0.0% -100 dBm 46.2% 43.0% 6.5% 1.1% -119 dBm 100.0% 100.0% 91.4% 76.3% -89 dBm
Apple River, IL 100.0% 100.0% 0.0% 0.0% -102 dBm 41.2% 35.3% 5.9% 0.0% -117 dBm 70.6% 70.6% 35.3% 5.9% -102 dBm
East Dubuque, IL 100.0% 100.0% 75.7% 54.1% -91 dBm 100.0% 100.0% 73.0% 20.3% -115 dBm 98.6% 98.6% 86.5% 55.4% -96 dBm
Elizabeth, IL 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 12.0% 8.0% -104 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Galena, IL 100.0% 100.0% 63.4% 45.5% -90 dBm 100.0% 100.0% 21.4% 20.5% -99 dBm 100.0% 100.0% 100.0% 99.1% -82 dBm
Hanover, IL 100.0% 100.0% 0.0% 0.0% -101 dBm 96.8% 96.8% 0.0% 0.0% -111 dBm 61.3% 61.3% 12.9% 0.0% -107 dBm
Menominee, IL 100.0% 100.0% 48.9% 28.9% -93 dBm 100.0% 100.0% 86.7% 66.7% -110 dBm 100.0% 100.0% 93.3% 73.3% -90 dBm
Nora, IL 100.0% 100.0% 68.4% 0.0% -101 dBm 89.5% 73.7% 84.2% 68.4% -116 dBm 63.2% 63.2% 26.3% 0.0% -104 dBm
Scales Mound, IL 100.0% 100.0% 0.0% 0.0% -96 dBm 26.7% 26.7% 0.0% 0.0% -120 dBm 100.0% 100.0% 100.0% 100.0% -61 dBm
Stockton, IL 100.0% 100.0% 95.7% 65.2% -91 dBm 97.8% 50.0% 87.0% 71.7% -108 dBm 100.0% 100.0% 100.0% 93.5% -90 dBm
The Galena Territory, IL 100.0% 100.0% 22.3% 14.6% -94 dBm 98.9% 98.9% 4.0% 3.3% -110 dBm 98.9% 98.9% 79.2% 40.1% -96 dBm
Warren, IL 100.0% 100.0% 0.0% 0.0% -100 dBm 80.0% 40.0% 76.0% 48.0% -115 dBm 12.0% 12.0% 8.0% 0.0% -103 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 Jo Daviess County, IL 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.