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

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

Coverage rankings for Franklin County, IL

AT&T currently ranks first for coverage in this area, with a coverage score of 86.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T86.399.5%99.5%90.7%65.6% -109 dBm
2Verizon73.299.8%99.8%40.4%25.8% -92 dBm
3T-Mobile57.561.2%61.2%48.3%29.4% -96 dBm

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

Cell phone coverage map for Franklin 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 Franklin County, IL

#1

AT&T

Coverage Score 86.3
In Franklin County, IL
Overall
99.5%
4G LTE
99.5%
5G
90.7%
Fast 5G
65.6%
Average Signal -109 dBm
#2

Verizon

Coverage Score 73.2
In Franklin County, IL
Overall
99.8%
4G LTE
99.8%
5G
40.4%
Fast 5G
25.8%
Average Signal -92 dBm
#3

T-Mobile

Coverage Score 57.5
In Franklin County, IL
Overall
61.2%
4G LTE
61.2%
5G
48.3%
Fast 5G
29.4%
Average Signal -96 dBm
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Coverage by city in Franklin County, IL

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

CityVerizonAT&TT-Mobile
Benton, IL 100.0% 100.0% 87.4% 77.0% -82 dBm 100.0% 100.0% 100.0% 94.8% -94 dBm 97.0% 97.0% 92.6% 79.3% -85 dBm
Buckner, IL 100.0% 100.0% 54.5% 40.9% -92 dBm 100.0% 100.0% 100.0% 100.0% -96 dBm 100.0% 100.0% 100.0% 72.7% -95 dBm
Christopher, IL 100.0% 100.0% 94.9% 89.7% -86 dBm 100.0% 100.0% 100.0% 66.7% -104 dBm 100.0% 100.0% 100.0% 97.4% -88 dBm
Ewing, IL 100.0% 100.0% 32.0% 0.0% -94 dBm 100.0% 100.0% 96.0% 80.0% -114 dBm 64.0% 64.0% 56.0% 32.0% -98 dBm
Freeman Spur, IL 100.0% 100.0% 72.7% 54.5% -91 dBm 90.9% 90.9% 81.8% 0.0% -118 dBm 90.9% 90.9% 54.5% 18.2% -104 dBm
Hanaford, IL 100.0% 100.0% 32.0% 12.0% -92 dBm 100.0% 100.0% 100.0% 56.0% -112 dBm 24.0% 24.0% 4.0% 0.0% -108 dBm
Mulkeytown, IL 100.0% 100.0% 0.0% 0.0% -90 dBm 100.0% 100.0% 85.7% 28.6% -116 dBm 71.4% 71.4% 28.6% 0.0% -106 dBm
North City, IL 100.0% 100.0% 87.3% 69.1% -86 dBm 100.0% 100.0% 100.0% 96.4% -101 dBm 100.0% 100.0% 100.0% 98.2% -83 dBm
Orient, IL 100.0% 100.0% 33.3% 0.0% -99 dBm 100.0% 100.0% 72.2% 33.3% -118 dBm 44.4% 44.4% 16.7% 5.6% -104 dBm
Royalton, IL 100.0% 100.0% 100.0% 75.9% -89 dBm 100.0% 100.0% 100.0% 96.6% -92 dBm 100.0% 100.0% 79.3% 58.6% -98 dBm
Sesser, IL 100.0% 100.0% 0.0% 0.0% -78 dBm 100.0% 100.0% 100.0% 100.0% -95 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
Thompsonville, IL 100.0% 100.0% 27.5% 3.9% -91 dBm 100.0% 100.0% 100.0% 80.4% -99 dBm 3.9% 3.9% 3.9% 0.0% -100 dBm
Valier, IL 100.0% 100.0% 63.3% 43.3% -97 dBm 100.0% 100.0% 100.0% 96.7% -104 dBm 100.0% 100.0% 100.0% 80.0% -89 dBm
West City, IL 100.0% 100.0% 65.9% 51.2% -93 dBm 100.0% 100.0% 100.0% 90.2% -103 dBm 97.6% 97.6% 90.2% 63.4% -93 dBm
West Frankfort, IL 100.0% 100.0% 92.3% 80.8% -83 dBm 100.0% 100.0% 100.0% 94.6% -97 dBm 100.0% 100.0% 100.0% 98.5% -81 dBm
Zeigler, IL 100.0% 100.0% 45.9% 18.9% -97 dBm 100.0% 100.0% 100.0% 97.3% -97 dBm 100.0% 100.0% 100.0% 81.1% -94 dBm
Ina, IL 100.0% 100.0% 95.1% 90.2% -85 dBm 100.0% 100.0% 100.0% 95.1% -103 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
Macedonia, IL 100.0% 100.0% 0.0% 0.0% -92 dBm 100.0% 100.0% 50.0% 50.0% -120 dBm 33.3% 33.3% 16.7% 0.0% -105 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 Franklin 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.