815 Radon
Rockford, IL
Listed for: Testing
Verified:Illinois state license
Locations and reports
Rockford lies in 2 counties, in EPA Zone 1. Homes with elevated levels occur in all three zones, so the only way to know your home's level is to test it.
Data checked By Radon411Methodology
The data
Rockford, What is published
Radon data is published by county, not by city
Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Rockford, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.
Each county has its own CDC test figures, shown below side by side. About 147,384 people live in Rockford.
Rockford, Counties
Each county's own EPA zone and its own published CDC figures for 2017, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.
| County | EPA zone | Reported tests at or above 4 pCi/L | Median reported result | Tests reported | Annual years on file |
|---|---|---|---|---|---|
| Ogle County | Zone 1: Highest predicted potential | 52.4% | 4.1 pCi/L | 636 tests | 4 |
| Winnebago County | Zone 1: Highest predicted potential | 34.9% | 2.9 pCi/L | 2,703 tests | 4 |
The median reported pre-mitigation result for 2017 was 4.1 pCi/L in Ogle County and 2.9 pCi/L in Winnebago County.
CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2017.
Radon Action Brief
National Radon Action MonthPre-sale
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Local help
Rockford, Professionals
Businesses whose listed city is Rockford, from the state registries and listings in the Radon411 directory, with the same business and certification status the directory shows.
Radon professionals listed in Rockford: 1 of 6
7 listings with Rockford as the city. See radon mitigation and testing in Rockford, or all radon professionals in Illinois.
Rockford, Local resources
Who to ask in Illinois: its radon program, test kits and professionals.
The Agency also licenses and regulates the individuals who provide radon measurement and mitigation to the public.
Illinois Radon Awareness Act - This is the legislation that requires the seller to provide to the buyer of any interest in residential real property the IEMA-OHS pamphlet entitled "Radon Testing Guidelines for Real Estate Transactions" and the Illinois Disclosure of Information on Radon Hazards.
What it means
Rockford, Questions
EPA's Map of Radon Zones classifies counties, not cities. Ogle County and Winnebago County are in Zone 1 (highest predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.
For 2017, the share of radon tests reported to CDC that were at or above 4 pCi/L was 52.4% in Ogle County (636 tests) and 34.9% in Winnebago County (2,703 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.
Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.
The answers use the published figures of Ogle County and Winnebago County, the counties Rockford lies in.
Explore
Rockford, Next steps
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