Mount Prospect, IL Radon Mitigation and Testing
Mount Prospect in Cook County shows an average radon level of 4.0 pCi/L based on local testing, right at the EPA action threshold for this northwest Chicago suburb. The community's predominantly postwar housing stock features full basements typical of the region, where glacial till over limestone bedrock creates favorable conditions for radon accumulation. While current readings are at the borderline level, ongoing testing remains important as radon levels can vary seasonally and between individual properties.
Based on 3 user-submitted radon tests for homes in Mount Prospect, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Mount Prospect, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Mount Prospect, IL Radon Testing
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Mount Prospect, Illinois Radon Levels
User-submitted radon test readings from homes in the Mount Prospect area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 5 pCi/L | Mount Prospect, IL | 51-99 Years | Partial Basement | Jun 2025 |
| 3 pCi/L | Mount Prospect, IL | 51-99 Years | Full Basement | Aug 2024 |
Have a radon test result for Mount Prospect? Submit your reading to help other homeowners.
Mount Prospect Radon Facts
Key details about the radon risk profile for Mount Prospect and the 60056 zip code area.
Mount Prospect and the 60056 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 Mount Prospect, 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 |