Granite City
Cell coverage comparison in Granite City, Illinois
Based on crowdsourced speed tests and signal measurements in Granite City, Illinois, the current snapshot reflects over 500 speed tests and shows medians of 128.0 Mbps download, 12.6 Mbps upload, and 50 ms latency.
Performance by Carrier in Granite City
Explore median download speeds, upload performance, and network latency for each major mobile carrier in Granite City, calculated from millions of real-world, crowdsourced speed tests. These results reflect typical everyday performance to help you compare carriers and choose the network that delivers the fastest speeds, most responsive connections, and broadest coverage where you live, work, and travel.
Over 200 tests conducted
Over 100 tests conducted
Over 100 tests conducted
Performance by Carrier shows side-by-side results for the primary mobile providers measured in Granite City. Each row reflects median download, upload, and latency for that carrier.
Providers included in this comparison are Verizon, T-Mobile, AT&T. Per-carrier test counts are shown in the table to indicate data accuracy.
Network Performance in Granite City
Get a complete view of mobile network performance across Granite City with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Granite City-wide snapshot to understand overall network trends, then dive deeper to compare individual carriers side-by-side and see how each performs in speed, responsiveness, and availability.
Median Performance
Download
Upload
Latency
Top Performers
Fastest Download: T-Mobile
305.6 Mbps
Fastest Upload: T-Mobile
19.9 Mbps
Best Latency: Verizon
47 ms
Best Coverage: Verizon
100.0%
Coverage Snapshot
Network Performance aggregates all measured carriers in Granite City to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.
These medians are calculated from over 500 tests. Current medians are 128.0 Mbps download, 12.6 Mbps upload, and 50 ms latency.
Cell Phone Plans for Granite City
Compare wireless plans from carriers with coverage in this area.
Helium Mobile Zero
Monthly plan
- 1 GB Data1GB cellular + 2GB Helium Wi-Fi
- No Hotspot Included
- 100 Minutes
- 300 Texts
Helium Mobile Sprout
Monthly plan
- 3 GB Datahigh-speed, then data stops
- No Hotspot Included
- Unlimited Minutes
- Unlimited Texts
Red Pocket 500MB 12 Months
12 month term
- 0.5 GB Datahigh-speed, then Unknown
- Hotspot Included
- 500 Minutes
- 500 Texts
Tello 100 Mins
Monthly plan
- No Data Included
- No Hotspot Included
- 100 Minutes
- Unlimited Texts
Tello 1GB 100 Mins
Monthly plan
- 1 GB Datahigh-speed, then data stops
- Hotspot Included
- 100 Minutes
- Unlimited Texts
Tello 2GB 100 Mins
Monthly plan
- 1 GB Datahigh-speed, then data stops
- Hotspot Included
- 100 Minutes
- Unlimited Texts
Page 1 of 24
Cell Coverage in Granite City: FAQ
What is the best cell phone carrier in Granite City?
Why might this page show limited data for Granite City?
How can I check coverage at my specific address in Granite City?
How can I contribute coverage data for Granite City?
Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.
Get the app