Carrierlytics City Coverage Guide

East Saint Louis, IL Cell Phone Coverage Map & Network Rankings (2026)

Don't overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across East Saint Louis, IL ZIP codes, Carrierlytics compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for East Saint Louis, 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 Carrierlytics.

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Cell phone coverage rankings by network in East Saint Louis, IL

#1

T-Mobile

Coverage Score 97.8
In East Saint Louis, IL
Overall
100.0%
4G LTE
100.0% avg. -83 dBm 4G LTE signal where 4G LTE coverage exists: avg. -83 dBm
5G
99.8% avg. -80 dBm 5G signal where 5G coverage exists: avg. -80 dBm
Fast 5G
96.5% avg. -80 dBm Fast 5G signal where Fast 5G coverage exists: avg. -80 dBm
St. Clair County, IL covered 93.0%
#2

Verizon

Coverage Score 92.7
In East Saint Louis, IL
Overall
100.0%
4G LTE
100.0% avg. -83 dBm 4G LTE signal where 4G LTE coverage exists: avg. -83 dBm
5G
95.8% avg. -91 dBm 5G signal where 5G coverage exists: avg. -91 dBm
Fast 5G
87.5% avg. -89 dBm Fast 5G signal where Fast 5G coverage exists: avg. -89 dBm
St. Clair County, IL covered 98.9%
#3

AT&T

Coverage Score 84.2
In East Saint Louis, IL
Overall
99.8%
4G LTE
98.6% avg. -97 dBm 4G LTE signal where 4G LTE coverage exists: avg. -97 dBm
5G
99.4% avg. -102 dBm 5G signal where 5G coverage exists: avg. -102 dBm
Fast 5G
76.1% avg. -99 dBm Fast 5G signal where Fast 5G coverage exists: avg. -99 dBm
St. Clair County, IL covered 99.0%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Best phone plans for East Saint Louis, IL

Best phone plans on T-Mobile's network for East Saint Louis, IL

97.8 T-Mobile coverage score Ranked #1 in East Saint Louis, IL
Best family plan
79.5 Value Score

T-Mobile Better Value

Fair Value

Price
$140.01/mo for 3 lines ($46.67/line)
Data
Unlimited
Hotspot
Unlimited
View plan

Coverage by ZIP code in East Saint Louis, IL

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP Code AT&T T-Mobile Verizon
62201 99.0% 98.3% 98.0% 68.7% 100.0% 100.0% 100.0% 99.7% 100.0% 100.0% 93.7% 91.7%
62203 100.0% 100.0% 100.0% 75.7% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 99.3% 90.0%
62204 100.0% 98.3% 100.0% 94.9% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 98.3%
62205 100.0% 97.4% 100.0% 86.4% 100.0% 100.0% 100.0% 96.1% 100.0% 100.0% 100.0% 85.7%
62206 100.0% 99.7% 99.7% 70.4% 100.0% 100.0% 99.2% 91.7% 100.0% 100.0% 91.2% 81.2%
62207 100.0% 96.8% 99.4% 79.6% 100.0% 100.0% 100.0% 96.2% 100.0% 100.0% 100.0% 86.0%

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics 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 East Saint Louis, 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.