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La Grange, IL Radon Levels

Check local La Grange radon levels and find certified testing and mitigation professionals to keep your home safe


La Grange, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Cook County, IL
Zip Code 60525

This established Cook County suburb in the Chicago Metro features housing predominantly from the early-to-mid 1900s, many with full basements typical of the region. While specific radon data for the 60525 zip code is limited, the area's glacial till deposits over limestone bedrock create favorable conditions for radon accumulation. Professional testing is recommended for all homes, particularly those with older stone or block foundation walls that may allow increased soil gas entry.

6.44
pCi/L area average
Above EPA Action Level

Cook County average: 6.44 pCi/L, based on 82 user-submitted tests across 40 cities in the county. No homeowner readings have been submitted for La Grange itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

La Grange, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near La Grange, IL

No homeowner tests have been submitted for La Grange yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

CityDistanceAvg User LevelReadings
Western Springs 2.1 mi 7.00 pCi/L 1
Willow Springs 3.3 mi 5.50 pCi/L 2
Willowbrook 4.3 mi 6.00 pCi/L 1
Riverside 4.4 mi 8.00 pCi/L 1
Westchester 4.8 mi 4.00 pCi/L 1
Berwyn 5.3 mi 5.00 pCi/L 1
Westmont 5.6 mi 4.00 pCi/L 1
Burbank 5.8 mi 2.00 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.

Radon FAQ for La Grange, IL

What EPA Radon Zone is La Grange in?
La Grange and the 60525 zip code are in Cook County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
Why are radon readings shown from areas near La Grange?
No homeowner radon tests have been submitted for La Grange yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Cook County average—are the best available indicator of local conditions until La Grange homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.
How much does radon mitigation cost in La Grange?
Radon mitigation in La Grange typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in La Grange?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.