Oak Park, IL Radon Levels
Check local Oak Park radon levels and find certified testing and mitigation professionals to keep your home safe
Oak Park, IL Radon Facts
This historic Cook County community in the Chicago Metro area shows an average radon level of 6.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Built largely in the early-to-mid 1900s with full basements over glacial till and limestone bedrock, Oak Park's housing stock creates ideal conditions for radon accumulation, making testing and mitigation essential for homeowners across zip codes 60301, 60302, and 60304.
Based on 3 user-submitted radon tests for homes in Oak Park, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Oak Park, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Oak Park, IL Radon Levels
User-submitted radon test readings from homes in the Oak Park area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | Oak Park, IL | 100+ Years | Full Basement |
| 7 pCi/L | Oak Park, IL | 51-99 Years | Full Basement |
Have a radon test result for Oak Park? Submit your reading to help other homeowners.
Radon Readings Near Oak Park, IL
Compare radon levels in Oak Park with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Forest Park | 1.2 mi | 7.00 pCi/L | 2 |
| River Forest | 1.4 mi | 4.00 pCi/L | 1 |
| Berwyn | 3.4 mi | 5.00 pCi/L | 1 |
| Riverside | 3.6 mi | 8.00 pCi/L | 1 |
| Westchester | 5.3 mi | 4.00 pCi/L | 1 |
| Chicago | 6.1 mi | 11.00 pCi/L | 3 |
| Elmhurst | 7.7 mi | 4.00 pCi/L | 1 |
| Western Springs | 7.8 mi | 7.00 pCi/L | 1 |
Cook County Radon Profile
Cook County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 40 cities in Cook County average 6.44 pCi/L across 82 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Cook County.