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

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

Coverage rankings for Champaign County, IL

T-Mobile currently ranks first for coverage in this area, with a coverage score of 93.5. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile93.598.5%98.5%94.4%75.5% -90 dBm
2Verizon92.999.8%99.8%93.8%71.0% -91 dBm
3AT&T88.099.9%99.8%96.4%67.7% -107 dBm

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

Cell phone coverage map for Champaign 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 Champaign County, IL

#1

T-Mobile

Coverage Score 93.5
In Champaign County, IL
Overall
98.5%
4G LTE
98.5%
5G
94.4%
Fast 5G
75.5%
Average Signal -90 dBm
#2

Verizon

Coverage Score 92.9
In Champaign County, IL
Overall
99.8%
4G LTE
99.8%
5G
93.8%
Fast 5G
71.0%
Average Signal -91 dBm
#3

AT&T

Coverage Score 88.0
In Champaign County, IL
Overall
99.9%
4G LTE
99.8%
5G
96.4%
Fast 5G
67.7%
Average Signal -107 dBm
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Coverage by city in Champaign County, IL

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

CityVerizonAT&TT-Mobile
Bondville, IL 100.0% 100.0% 100.0% 100.0% -94 dBm 100.0% 100.0% 100.0% 0.0% -111 dBm 100.0% 100.0% 100.0% 55.6% -96 dBm
Broadlands, IL 100.0% 100.0% 100.0% 44.4% -94 dBm 100.0% 100.0% 11.1% 11.1% -106 dBm 66.7% 66.7% 22.2% 0.0% -105 dBm
Champaign, IL 100.0% 100.0% 91.7% 73.6% -85 dBm 100.0% 100.0% 99.8% 70.8% -98 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Dewey, IL 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 100.0% 0.0% -110 dBm 100.0% 100.0% 100.0% 33.3% -97 dBm
Fisher, IL 100.0% 100.0% 83.9% 51.6% -92 dBm 100.0% 100.0% 100.0% 90.3% -93 dBm 100.0% 100.0% 100.0% 100.0% -85 dBm
Foosland, IL 100.0% 100.0% 100.0% 50.0% -100 dBm 100.0% 100.0% 50.0% 0.0% -115 dBm 100.0% 100.0% 100.0% 0.0% -100 dBm
Gifford, IL 100.0% 100.0% 100.0% 100.0% -80 dBm 100.0% 100.0% 100.0% 100.0% -92 dBm 76.9% 76.9% 61.5% 30.8% -98 dBm
Homer, IL 100.0% 100.0% 68.0% 48.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Ivesdale, IL 100.0% 100.0% 82.4% 0.0% -101 dBm 100.0% 100.0% 100.0% 29.4% -118 dBm 94.1% 94.1% 35.3% 0.0% -106 dBm
Lake of the Woods, IL 100.0% 100.0% 22.0% 17.1% -83 dBm 100.0% 100.0% 100.0% 85.4% -105 dBm 100.0% 100.0% 97.6% 43.9% -96 dBm
Longview, IL 100.0% 100.0% 100.0% 75.0% -93 dBm 100.0% 100.0% 100.0% 100.0% -118 dBm 50.0% 50.0% 50.0% 0.0% -100 dBm
Ludlow, IL 100.0% 100.0% 100.0% 100.0% -94 dBm 100.0% 100.0% 100.0% 100.0% -101 dBm 100.0% 100.0% 88.9% 22.2% -99 dBm
Mahomet, IL 100.0% 100.0% 79.7% 57.7% -89 dBm 100.0% 100.0% 100.0% 91.7% -103 dBm 100.0% 100.0% 98.3% 82.6% -89 dBm
Ogden, IL 100.0% 100.0% 93.8% 81.3% -89 dBm 100.0% 100.0% 100.0% 100.0% -111 dBm 100.0% 100.0% 93.8% 56.3% -95 dBm
Penfield, IL 100.0% 100.0% 16.7% 16.7% -97 dBm 100.0% 100.0% 100.0% 66.7% -113 dBm 100.0% 100.0% 100.0% 100.0% -83 dBm
Pesotum, IL 100.0% 100.0% 100.0% 88.9% -85 dBm 100.0% 100.0% 100.0% 72.2% -96 dBm 100.0% 100.0% 100.0% 83.3% -92 dBm
Philo, IL 100.0% 100.0% 54.5% 0.0% -88 dBm 100.0% 100.0% 100.0% 77.3% -100 dBm 100.0% 100.0% 95.5% 54.5% -96 dBm
Rantoul, IL 100.0% 100.0% 99.1% 96.8% -80 dBm 100.0% 100.0% 100.0% 95.9% -97 dBm 100.0% 100.0% 100.0% 98.6% -76 dBm
Royal, IL 100.0% 100.0% 100.0% 40.0% -100 dBm 100.0% 100.0% 100.0% 0.0% -114 dBm 100.0% 100.0% 20.0% 0.0% -106 dBm
Sadorus, IL 100.0% 100.0% 76.9% 69.2% -93 dBm 100.0% 100.0% 100.0% 100.0% -96 dBm 100.0% 100.0% 100.0% 92.3% -89 dBm
Savoy, IL 100.0% 100.0% 96.3% 84.1% -83 dBm 100.0% 100.0% 100.0% 76.8% -99 dBm 100.0% 100.0% 100.0% 96.3% -84 dBm
Seymour, IL 100.0% 100.0% 100.0% 50.0% -90 dBm 100.0% 100.0% 100.0% 50.0% -110 dBm 100.0% 100.0% 100.0% 100.0% -95 dBm
Sidney, IL 100.0% 100.0% 18.8% 0.0% -78 dBm 100.0% 100.0% 87.5% 31.3% -116 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
St. Joseph, IL 100.0% 100.0% 96.2% 86.8% -83 dBm 100.0% 100.0% 98.1% 96.2% -97 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Thomasboro, IL 100.0% 100.0% 96.0% 84.0% -93 dBm 100.0% 100.0% 100.0% 96.0% -94 dBm 100.0% 100.0% 92.0% 68.0% -94 dBm
Tolono, IL 100.0% 100.0% 98.1% 82.7% -94 dBm 100.0% 98.1% 100.0% 48.1% -110 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Urbana, IL 100.0% 100.0% 93.7% 75.7% -85 dBm 100.0% 100.0% 100.0% 78.3% -95 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Allerton, IL 100.0% 100.0% 100.0% 72.2% -92 dBm 100.0% 100.0% 44.4% 5.6% -114 dBm 94.4% 94.4% 61.1% 0.0% -102 dBm
Villa Grove, IL 100.0% 100.0% 91.7% 66.7% -87 dBm 100.0% 100.0% 100.0% 97.2% -95 dBm 44.4% 44.4% 19.4% 0.0% -106 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 Champaign 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.