Highland Park, IL Radon Levels
Check local Highland Park radon levels and find certified testing and mitigation professionals to keep your home safe
Highland Park, IL Radon Facts
Highland Park is positioned along the northern suburban corridor of the Chicago metro in Lake County, where glacial till deposits from the Wisconsin glaciation create soil conditions highly favorable for radon gas production. Recent testing shows an average radon level of 10.0 pCi/L, well above the EPA action threshold. The community's predominantly single-family homes with full poured-concrete basements provide enclosed below-grade spaces where radon accumulates most readily.
Based on 3 user-submitted radon tests for homes in Highland Park, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Highland Park, IL Radon Mitigation
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Highland Park, IL Radon Levels
User-submitted radon test readings from homes in the Highland Park area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 15 pCi/L | Highland Park, IL | 51-99 Years | Full Basement |
| 8 pCi/L | Highland Park, IL | 21-50 Years | Full Basement |
| 7 pCi/L | Highland Park, IL | 21-50 Years | Full Basement |
Have a radon test result for Highland Park? Submit your reading to help other homeowners.
Radon Readings Near Highland Park, IL
Compare radon levels in Highland Park with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Deerfield | 2.8 mi | 4.00 pCi/L | 1 |
| Northbrook | 4.3 mi | 6.20 pCi/L | 5 |
| Lake Forest | 4.6 mi | 10.00 pCi/L | 1 |
| Lincolnshire | 6.3 mi | 6.00 pCi/L | 1 |
| Wheeling | 7.3 mi | 5.00 pCi/L | 2 |
| Glenview | 7.4 mi | 4.33 pCi/L | 3 |
| Lake Bluff | 7.5 mi | 4.00 pCi/L | 1 |
| Buffalo Grove | 8.2 mi | 6.10 pCi/L | 10 |
Lake County Radon Profile
The soils and bedrock of Lake County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 19 cities in Lake County average 6.68 pCi/L across 59 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Lake County to test, as levels can differ between neighboring homes.