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

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

Coverage rankings for Macoupin County, IL

AT&T currently ranks first for coverage in this area, with a coverage score of 75.7. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T75.796.8%96.8%67.3%40.7% -111 dBm
2Verizon65.594.7%94.6%27.5%19.1% -96 dBm
3T-Mobile60.063.6%63.6%51.5%32.4% -96 dBm

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

Cell phone coverage map for Macoupin 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 Macoupin County, IL

#1

AT&T

Coverage Score 75.7
In Macoupin County, IL
Overall
96.8%
4G LTE
96.8%
5G
67.3%
Fast 5G
40.7%
Average Signal -111 dBm
#2

Verizon

Coverage Score 65.5
In Macoupin County, IL
Overall
94.7%
4G LTE
94.6%
5G
27.5%
Fast 5G
19.1%
Average Signal -96 dBm
#3

T-Mobile

Coverage Score 60.0
In Macoupin County, IL
Overall
63.6%
4G LTE
63.6%
5G
51.5%
Fast 5G
32.4%
Average Signal -96 dBm
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Coverage by city in Macoupin County, IL

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

CityVerizonAT&TT-Mobile
Benld, IL 100.0% 100.0% 7.7% 0.0% -96 dBm 100.0% 100.0% 100.0% 96.2% -98 dBm 100.0% 100.0% 100.0% 96.2% -90 dBm
Brighton, IL 100.0% 100.0% 98.0% 95.9% -70 dBm 100.0% 100.0% 75.5% 69.4% -110 dBm 51.0% 51.0% 16.3% 0.0% -106 dBm
Bunker Hill, IL 100.0% 100.0% 0.0% 0.0% -67 dBm 100.0% 100.0% 100.0% 97.2% -87 dBm 100.0% 100.0% 100.0% 80.6% -92 dBm
Carlinville, IL 100.0% 100.0% 87.1% 70.6% -85 dBm 100.0% 100.0% 95.3% 37.6% -94 dBm N/A N/A N/A N/A N/A
Chesterfield, IL 100.0% 100.0% 0.0% 0.0% -61 dBm 100.0% 100.0% 69.2% 30.8% -118 dBm 30.8% 30.8% 30.8% 0.0% -100 dBm
Dorchester, IL 100.0% 100.0% 0.0% 0.0% -92 dBm 100.0% 100.0% 100.0% 44.4% -112 dBm 100.0% 100.0% 100.0% 88.9% -92 dBm
Eagarville, IL 100.0% 100.0% 9.1% 9.1% -100 dBm 100.0% 100.0% 100.0% 54.5% -111 dBm 100.0% 100.0% 86.4% 40.9% -96 dBm
East Gillespie, IL 100.0% 100.0% 0.0% 0.0% -103 dBm 100.0% 100.0% 100.0% 85.7% -93 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Gillespie, IL 100.0% 100.0% 0.0% 0.0% -102 dBm 100.0% 100.0% 100.0% 91.9% -94 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Girard, IL 100.0% 100.0% 56.5% 26.1% -93 dBm 100.0% 100.0% 100.0% 95.7% -91 dBm 100.0% 100.0% 73.9% 13.0% -101 dBm
Hettick, IL 100.0% 100.0% 0.0% 0.0% -101 dBm 100.0% 100.0% 44.4% 11.1% -119 dBm N/A N/A N/A N/A N/A
Lake Ka-Ho, IL 100.0% 100.0% 42.9% 14.3% -103 dBm 100.0% 100.0% 100.0% 71.4% -93 dBm 100.0% 100.0% 100.0% 71.4% -91 dBm
Medora, IL 100.0% 100.0% 18.2% 0.0% -101 dBm 100.0% 100.0% 0.0% 0.0% -75 dBm N/A N/A N/A N/A N/A
Modesto, IL 100.0% 100.0% 0.0% 0.0% -84 dBm 100.0% 100.0% 35.7% 21.4% -107 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
Mount Clare, IL 100.0% 100.0% 15.4% 12.8% -96 dBm 100.0% 100.0% 100.0% 79.5% -92 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
Mount Olive, IL 100.0% 100.0% 100.0% 89.7% -79 dBm 100.0% 100.0% 100.0% 100.0% -91 dBm 100.0% 100.0% 100.0% 100.0% -81 dBm
Nilwood, IL 100.0% 100.0% 71.4% 14.3% -97 dBm 100.0% 100.0% 100.0% 50.0% -104 dBm 71.4% 71.4% 42.9% 0.0% -103 dBm
Palmyra, IL 100.0% 100.0% 0.0% 0.0% -79 dBm 100.0% 100.0% 38.5% 38.5% -98 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Royal Lakes, IL 100.0% 100.0% 0.0% 0.0% -98 dBm 100.0% 100.0% 100.0% 100.0% -87 dBm 58.3% 58.3% 50.0% 16.7% -99 dBm
Sawyerville, IL 100.0% 100.0% 0.0% 0.0% -98 dBm 100.0% 100.0% 88.5% 84.6% -112 dBm 100.0% 100.0% 100.0% 84.6% -92 dBm
Scottville, IL 92.0% 92.0% 0.0% 0.0% -105 dBm 100.0% 100.0% 20.0% 16.0% -113 dBm 68.0% 68.0% 60.0% 20.0% -101 dBm
Shipman, IL 100.0% 100.0% 0.0% 0.0% -68 dBm 100.0% 100.0% 90.9% 87.9% -116 dBm 12.1% 12.1% 3.0% 0.0% -108 dBm
Standard City, IL 100.0% 100.0% 64.7% 58.8% -96 dBm 100.0% 100.0% 100.0% 23.5% -117 dBm 58.8% 58.8% 41.2% 0.0% -103 dBm
Staunton, IL 87.9% 87.9% 12.1% 5.1% -102 dBm 99.0% 99.0% 63.6% 56.6% -113 dBm 100.0% 100.0% 99.0% 89.9% -83 dBm
Virden, IL 100.0% 100.0% 97.8% 84.8% -85 dBm 100.0% 100.0% 100.0% 91.3% -93 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
White City, IL 100.0% 100.0% 56.3% 40.6% -85 dBm 100.0% 100.0% 87.5% 50.0% -112 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Wilsonville, IL 88.5% 88.5% 30.8% 19.2% -104 dBm 100.0% 100.0% 73.1% 57.7% -115 dBm 80.8% 80.8% 65.4% 46.2% -97 dBm
Williamson, IL 100.0% 100.0% 17.2% 13.8% -97 dBm 100.0% 100.0% 100.0% 86.2% -111 dBm 100.0% 100.0% 100.0% 100.0% -81 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 Macoupin 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.