Princeton, IL Radon Mitigation and Testing
Princeton sits in Bureau County where recent testing reveals an average radon level of 11.5 pCi/L, significantly exceeding the EPA action level of 4.0 pCi/L. Located in ZIP code 61356, the community lies within Illinois River valley geology where glacial deposits over limestone bedrock create ideal conditions for radon accumulation. With readings ranging from 8.0 to 15.0 pCi/L and the area's EPA Zone 1 classification, Princeton residents should prioritize immediate radon mitigation.
Based on 2 user-submitted radon tests for homes in Princeton, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Princeton, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Princeton, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Princeton, Illinois Radon Levels
User-submitted radon test readings from homes in the Princeton area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 8 pCi/L | Princeton, IL | 100+ Years | — | Sep 2025 |
| 15 pCi/L | Princeton, IL | 51-99 Years | Partial Basement | Jun 2019 |
Have a radon test result for Princeton? Submit your reading to help other homeowners.
Princeton Radon Facts
Key details about the radon risk profile for Princeton and the 61356 zip code area.
Princeton and the 61356 zip code are located in Bureau 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 Princeton, 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 |