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Flossmoor, IL Radon Levels

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


Flossmoor, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Cook County, IL
Zip Code 60422
Avg. User Level 5.00 pCi/L
User Tests 1

Located in Cook County within the Chicago Metro area, Flossmoor shows an average radon level of 5.0 pCi/L from recent testing. This level exceeds the EPA action threshold, consistent with northern Illinois' glacial till deposits over limestone bedrock that create favorable conditions for radon production. Most homes in this 60422 community feature full basements where radon typically accumulates.

5.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Flossmoor, IL. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Flossmoor, IL Radon Mitigation

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

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Flossmoor, IL Radon Levels

User-submitted radon test readings from homes in the Flossmoor area.

Radon LevelCityHome AgeFoundation
5 pCi/L Flossmoor, IL 100+ Years Full Basement

Have a radon test result for Flossmoor? Submit your reading to help other homeowners.

Radon Readings Near Flossmoor, IL

Compare radon levels in Flossmoor with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Matteson 3.6 mi 15.00 pCi/L 1
Richton Park 4.6 mi 3.00 pCi/L 2
Tinley Park 7.4 mi 7.67 pCi/L 3
Blue Island 8.1 mi 4.00 pCi/L 1
Crete 8.2 mi 15.00 pCi/L 1
Palos Heights 10.1 mi 5.00 pCi/L 1
Orland Park 10.6 mi 7.00 pCi/L 3
Mokena 10.7 mi 5.67 pCi/L 3

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 Flossmoor, IL

What is the average radon level in Flossmoor, IL?
Based on 1 user-submitted test, the average radon level in Flossmoor is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Flossmoor in?
Flossmoor and the 60422 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.
How much does radon mitigation cost in Flossmoor?
Radon mitigation in Flossmoor 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 Flossmoor?
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.