Springfield, IL Radon Mitigation and Testing
Illinois's capital city sits in Sangamon County within the central prairie region, where deep glacial deposits over limestone bedrock create significant radon potential. Springfield's average reading of 6.5 pCi/L substantially exceeds the EPA action level, with readings ranging from 3.0 to 10.0 pCi/L across zip codes 62701-62712. The city's mix of historic homes and postwar construction, predominantly featuring full basements, requires professional radon testing and potential mitigation.
Based on 2 user-submitted radon tests for homes in Springfield, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Springfield, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Springfield, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Springfield, Illinois Radon Levels
User-submitted radon test readings from homes in the Springfield area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 10 pCi/L | Springfield, IL | 0-20 Years | — | Oct 2024 |
| 3 pCi/L | Springfield, IL | 51-99 Years | Full Basement | Aug 2017 |
Have a radon test result for Springfield? Submit your reading to help other homeowners.
Springfield Radon Facts
Key details about the radon risk profile for Springfield and the 62701 zip code area.
Springfield and the 62701 zip code are located in Sangamon County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Springfield, 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 |