Coverage rankings for DuPage County, IL
T-Mobile currently ranks first for coverage in this area, with a coverage score of 99.2. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.
| Rank | Carrier | Score | Overall | 4G LTE | 5G | Fast 5G | Average Signal |
|---|---|---|---|---|---|---|---|
| 1 | T-Mobile | 99.2 | 100.0% | 100.0% | 99.8% | 98.6% | -79 dBm |
| 2 | Verizon | 98.0 | 100.0% | 100.0% | 99.8% | 96.4% | -86 dBm |
| 3 | AT&T | 91.1 | 100.0% | 99.9% | 99.5% | 70.4% | -99 dBm |
Scores include coverage area, network type, and average signal strength.
Cell phone coverage map for DuPage 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 DuPage County, IL
#1
T-Mobile
Coverage Score 99.2
In DuPage County, IL
- Overall
- 100.0%
- 4G LTE
- 100.0%
- 5G
- 99.8%
- Fast 5G
- 98.6%
Average Signal -79 dBm
#2
Verizon
Coverage Score 98.0
In DuPage County, IL
- Overall
- 100.0%
- 4G LTE
- 100.0%
- 5G
- 99.8%
- Fast 5G
- 96.4%
Average Signal -86 dBm
#3
AT&T
Coverage Score 91.1
In DuPage County, IL
- Overall
- 100.0%
- 4G LTE
- 99.9%
- 5G
- 99.5%
- Fast 5G
- 70.4%
Average Signal -99 dBm
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Coverage by city in DuPage County, IL
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Addison, IL | 100.0% 100.0% 100.0% 99.6% -81 dBm | 100.0% 100.0% 100.0% 67.4% -95 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |
| Bartlett, IL | 100.0% 100.0% 100.0% 96.2% -88 dBm | 100.0% 100.0% 100.0% 81.8% -101 dBm | 100.0% 100.0% 100.0% 99.5% -80 dBm |
| Bensenville, IL | 100.0% 100.0% 100.0% 98.5% -84 dBm | 100.0% 100.0% 100.0% 84.2% -95 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |
| Bloomingdale, IL | 100.0% 100.0% 100.0% 98.8% -87 dBm | 100.0% 100.0% 100.0% 82.5% -98 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Burr Ridge, IL | 100.0% 100.0% 100.0% 94.0% -86 dBm | 100.0% 100.0% 100.0% 69.8% -103 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Carol Stream, IL | 100.0% 100.0% 100.0% 100.0% -80 dBm | 100.0% 100.0% 100.0% 70.6% -94 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |
| Clarendon Hills, IL | 100.0% 100.0% 100.0% 100.0% -84 dBm | 100.0% 100.0% 100.0% 76.7% -98 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Darien, IL | 100.0% 100.0% 100.0% 99.3% -87 dBm | 100.0% 100.0% 100.0% 71.1% -94 dBm | 100.0% 100.0% 100.0% 98.7% -80 dBm |
| Downers Grove, IL | 100.0% 100.0% 100.0% 97.8% -86 dBm | 100.0% 100.0% 99.4% 66.4% -98 dBm | 100.0% 100.0% 100.0% 100.0% -79 dBm |
| Elmhurst, IL | 100.0% 100.0% 100.0% 99.2% -82 dBm | 100.0% 100.0% 99.2% 65.2% -99 dBm | 100.0% 100.0% 100.0% 100.0% -79 dBm |
| Glen Ellyn, IL | 100.0% 100.0% 100.0% 98.8% -85 dBm | 100.0% 99.4% 99.4% 72.3% -102 dBm | 100.0% 100.0% 100.0% 100.0% -81 dBm |
| Glendale Heights, IL | 100.0% 100.0% 100.0% 99.2% -79 dBm | 100.0% 100.0% 100.0% 76.6% -94 dBm | 100.0% 100.0% 100.0% 100.0% -71 dBm |
| Hanover Park, IL | 100.0% 100.0% 100.0% 100.0% -83 dBm | 100.0% 100.0% 100.0% 88.3% -98 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Hinsdale, IL | 100.0% 100.0% 100.0% 99.1% -89 dBm | 100.0% 100.0% 96.3% 75.0% -103 dBm | 100.0% 100.0% 100.0% 96.3% -84 dBm |
| Itasca, IL | 100.0% 100.0% 100.0% 97.6% -87 dBm | 100.0% 100.0% 100.0% 85.0% -99 dBm | 100.0% 100.0% 100.0% 100.0% -73 dBm |
| Lisle, IL | 100.0% 100.0% 100.0% 99.4% -83 dBm | 100.0% 100.0% 100.0% 82.5% -93 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Lombard, IL | 100.0% 100.0% 100.0% 99.6% -85 dBm | 99.6% 99.6% 99.6% 64.1% -99 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Naperville, IL | 100.0% 100.0% 100.0% 98.6% -88 dBm | 100.0% 100.0% 100.0% 70.9% -100 dBm | 100.0% 100.0% 100.0% 99.8% -79 dBm |
| Oak Brook, IL | 100.0% 100.0% 97.9% 96.4% -85 dBm | 100.0% 100.0% 98.4% 58.9% -100 dBm | 100.0% 100.0% 100.0% 97.4% -81 dBm |
| Oakbrook Terrace, IL | 100.0% 100.0% 100.0% 100.0% -79 dBm | 100.0% 100.0% 100.0% 76.5% -94 dBm | 100.0% 100.0% 100.0% 100.0% -71 dBm |
| Roselle, IL | 100.0% 100.0% 100.0% 97.0% -88 dBm | 100.0% 100.0% 100.0% 77.4% -101 dBm | 100.0% 100.0% 100.0% 97.0% -82 dBm |
| Villa Park, IL | 100.0% 100.0% 100.0% 99.1% -85 dBm | 99.1% 99.1% 98.2% 76.3% -97 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Warrenville, IL | 100.0% 100.0% 100.0% 90.4% -90 dBm | 100.0% 100.0% 100.0% 74.8% -99 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Wayne, IL | 100.0% 100.0% 95.9% 69.0% -96 dBm | 100.0% 99.3% 100.0% 64.1% -108 dBm | 100.0% 100.0% 86.2% 57.9% -92 dBm |
| West Chicago, IL | 100.0% 100.0% 100.0% 96.6% -86 dBm | 100.0% 100.0% 100.0% 71.3% -99 dBm | 100.0% 100.0% 100.0% 98.9% -77 dBm |
| Westmont, IL | 100.0% 100.0% 100.0% 100.0% -83 dBm | 100.0% 100.0% 100.0% 65.6% -93 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Wheaton, IL | 100.0% 100.0% 100.0% 99.3% -85 dBm | 100.0% 100.0% 98.9% 73.0% -97 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Willowbrook Census Place 1781919, IL | 100.0% 100.0% 100.0% 100.0% -88 dBm | 100.0% 100.0% 100.0% 69.8% -95 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Winfield, IL | 100.0% 100.0% 100.0% 93.8% -85 dBm | 100.0% 100.0% 100.0% 71.3% -98 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Wood Dale, IL | 100.0% 100.0% 100.0% 97.5% -84 dBm | 100.0% 100.0% 100.0% 83.6% -96 dBm | 100.0% 100.0% 100.0% 98.4% -79 dBm |
| Woodridge, IL | 100.0% 100.0% 100.0% 98.2% -86 dBm | 100.0% 100.0% 99.6% 79.3% -99 dBm | 100.0% 100.0% 100.0% 99.6% -80 dBm |
| Aurora, IL | 100.0% 100.0% 100.0% 97.9% -87 dBm | 100.0% 100.0% 99.8% 69.1% -97 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Batavia, IL | 100.0% 100.0% 100.0% 99.6% -86 dBm | 100.0% 100.0% 100.0% 69.5% -97 dBm | 100.0% 100.0% 100.0% 100.0% -77 dBm |
| Berkeley, IL | 100.0% 100.0% 100.0% 100.0% -75 dBm | 100.0% 100.0% 100.0% 71.4% -92 dBm | 100.0% 100.0% 100.0% 100.0% -72 dBm |
| Bolingbrook, IL | 100.0% 100.0% 100.0% 99.2% -83 dBm | 100.0% 100.0% 100.0% 79.1% -99 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Chicago, IL | 100.0% 100.0% 99.4% 95.0% -87 dBm | 99.9% 99.9% 99.8% 82.2% -93 dBm | 99.9% 99.9% 99.1% 99.0% -72 dBm |
| Elgin, IL | 100.0% 100.0% 99.7% 97.9% -85 dBm | 100.0% 100.0% 99.3% 82.4% -100 dBm | 100.0% 100.0% 100.0% 99.9% -77 dBm |
| Elk Grove Village, IL | 100.0% 100.0% 100.0% 99.6% -81 dBm | 100.0% 100.0% 100.0% 72.7% -98 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Franklin Park, IL | 100.0% 100.0% 100.0% 99.1% -83 dBm | 100.0% 100.0% 100.0% 82.3% -94 dBm | 100.0% 100.0% 100.0% 100.0% -68 dBm |
| Geneva, IL | 100.0% 100.0% 99.6% 92.5% -86 dBm | 100.0% 100.0% 99.2% 68.0% -100 dBm | 100.0% 100.0% 100.0% 99.6% -79 dBm |
| Lemont, IL | 100.0% 100.0% 100.0% 96.5% -87 dBm | 100.0% 100.0% 100.0% 87.0% -97 dBm | 100.0% 100.0% 100.0% 95.7% -82 dBm |
| Northlake, IL | 100.0% 100.0% 100.0% 100.0% -81 dBm | 100.0% 100.0% 100.0% 67.6% -96 dBm | 100.0% 100.0% 100.0% 100.0% -71 dBm |
| Schaumburg, IL | 100.0% 100.0% 100.0% 94.7% -89 dBm | 100.0% 100.0% 100.0% 69.7% -101 dBm | 100.0% 100.0% 100.0% 99.4% -77 dBm |
| St. Charles, IL | 100.0% 100.0% 98.9% 88.5% -89 dBm | 100.0% 100.0% 98.6% 73.5% -102 dBm | 100.0% 100.0% 99.7% 97.5% -78 dBm |
| Willow Springs, IL | 100.0% 100.0% 100.0% 92.3% -88 dBm | 100.0% 100.0% 100.0% 80.8% -101 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 DuPage 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.