Wilmette, IL Radon Mitigation and Testing
This affluent North Shore suburb in Cook County shows concerning radon levels, with an average reading of 6.0 pCi/L that significantly exceeds the EPA action threshold. Located along the northern suburban corridor of the Chicago metro, Wilmette's position on glacial till deposits over limestone bedrock creates conditions highly favorable for radon gas production and migration. The community's predominantly single-family homes with full poured-concrete basements in zip code 60091 provide the enclosed below-grade spaces where radon accumulates most readily.
Based on 1 user-submitted radon test for homes in Wilmette, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Wilmette, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Wilmette, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Wilmette, Illinois Radon Levels
User-submitted radon test readings from homes in the Wilmette area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 6 pCi/L | Wilmette, IL | 51-99 Years | Partial Basement | Sep 2024 |
Have a radon test result for Wilmette? Submit your reading to help other homeowners.
Wilmette Radon Facts
Key details about the radon risk profile for Wilmette and the 60091 zip code area.
Wilmette and the 60091 zip code are located in Cook County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Wilmette, IL
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Most Active Radon Markets in Illinois
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Buffalo Grove | 6.10 pCi/L | 10 |
| Crystal Lake | 7.25 pCi/L | 8 |
| Lake Zurich | 6.00 pCi/L | 7 |
| Grayslake | 5.00 pCi/L | 7 |
| New Lenox | 10.17 pCi/L | 6 |
| Park Ridge | 7.00 pCi/L | 6 |
| Arlington Heights | 6.17 pCi/L | 6 |
| Waterloo | 9.20 pCi/L | 5 |
| Palatine | 7.80 pCi/L | 5 |
| Round Lake | 7.80 pCi/L | 5 |
| Northbrook | 6.20 pCi/L | 5 |
| Mchenry | 11.00 pCi/L | 4 |
| Dekalb | 8.75 pCi/L | 4 |
| Columbia | 8.00 pCi/L | 4 |
| Lisle | 7.25 pCi/L | 4 |
| Normal | 7.25 pCi/L | 4 |
| Antioch | 7.00 pCi/L | 4 |
| Elk Grove Village | 7.00 pCi/L | 4 |
| Aurora | 6.75 pCi/L | 4 |
| Hoffman Estates | 6.75 pCi/L | 4 |