Jo Daviess, IL Internet Speeds — Measured 2024
Real speed tests run in Jo Daviess County, Illinois during 2024 recorded a median download of 79.0 Mbps, upload of 30.3 Mbps and latency of 20.5 ms, across 1,297 measurements. That is 0.9× the US median and places it #1,393 of 2,425 US counties.
What these numbers mean here
The median is the typical connection, not the best one available. Half the tests in Jo Daviess came in below 79.0 Mbps and half above. The slower quarter of connections measured under 12.1 Mbps, while the faster quarter exceeded 198.9 Mbps — a spread that usually reflects a mix of fibre, cable and older DSL lines in the same area rather than one uniform service level.
At 79.0 Mbps down and 30.3 Mbps up, a typical household here can handle HD streaming and video calls, though simultaneous heavy use may compete for bandwidth. Latency of 20.5 ms is acceptable for most real-time use.
The spread of connections in Jo Daviess
Measured download speed, 2024
How Illinois has changed since 2020
Median download by year, Illinois
State-wide measured median, Mbps
How the big providers actually perform
Median measured download speed by provider across the United States. SignalScout does not yet map which of these serve Jo Daviess specifically — see how to check availability — but the ranking shows what customers of each really get.
Illinois counties ranked
| # | County | Down | Up | Latency |
|---|---|---|---|---|
| 1 | Richland | 115.6 | 28.6 | 16.2 |
| 2 | Kendall | 107.0 | 23.9 | 9.5 |
| 3 | DuPage | 105.9 | 21.5 | 8.1 |
| 4 | Lake | 104.5 | 19.8 | 8.4 |
| 5 | Kane | 103.0 | 22.7 | 9.5 |
| 6 | Jefferson | 102.7 | 11.3 | 16.0 |
| 7 | Will | 101.7 | 20.6 | 9.0 |
| 8 | Hamilton | 101.3 | 45.4 | 16.0 |
| 9 | Clay | 100.6 | 74.4 | 18.6 |
| 10 | Rock Island | 99.3 | 29.8 | 13.6 |
| 11 | Madison | 98.9 | 11.2 | 14.3 |
| 12 | St. Clair | 97.7 | 11.1 | 14.5 |
See all 84 counties in Illinois →
Check a specific address in Jo Daviess
County figures describe the area. To look up a specific street address and compare it with somewhere else you are considering, use SignalScout directly.
Common questions
What is the average internet speed in Jo Daviess, IL?
Speed tests run in Jo Daviess during 2024 recorded a median download of 79.0 Mbps, a median upload of 30.3 Mbps and median latency of 20.5 ms, across 1,297 measurements collected by Measurement Lab.
Is internet in Jo Daviess faster or slower than the US average?
Slower. The median measured download here is 79.0 Mbps against a US median of 85.2 Mbps, which ranks Jo Daviess #1,393 out of 2,425 counties nationally.
Are these advertised speeds or real ones?
Real ones. These are aggregated results of speed tests run by actual people on their own connections, published in the public domain by Measurement Lab. They reflect the plans residents actually buy, which is typically well below the fastest plan a provider sells.
Which internet providers serve Jo Daviess?
SignalScout does not yet map provider availability by address — that data comes from FCC filings that require a registered account for bulk access. The page shows how major national providers perform, and the FCC National Broadband Map lists filed availability by address.
Check a real address
See the measured download, upload and latency for any US address, plus a Connectivity Score ranked against every county in the country.