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Deerfield, IL Radon Levels

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


Deerfield, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Lake County, IL
Zip Code 60015
Avg. User Level 4.00 pCi/L
User Tests 1

Situated in Lake County along the northern suburban corridor of the Chicago metro, Deerfield recorded an average radon level of 4.0 pCi/L, right at the EPA action threshold. The community's 60015 zip code area sits on glacial till deposits over limestone bedrock, conditions that support radon production throughout the region. Despite being at the threshold level, ongoing testing is recommended as individual homes can vary significantly from neighborhood averages.

4.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Deerfield, IL Radon Mitigation

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

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Deerfield, IL Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Deerfield, IL 51-99 Years Full Basement

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

Radon Readings Near Deerfield, IL

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

CityDistanceAvg User LevelReadings
Highland Park 2.8 mi 10.00 pCi/L 3
Northbrook 3.2 mi 6.20 pCi/L 5
Lincolnshire 3.9 mi 6.00 pCi/L 1
Wheeling 4.6 mi 5.00 pCi/L 2
Lake Forest 4.7 mi 10.00 pCi/L 1
Buffalo Grove 5.4 mi 6.10 pCi/L 10
Prospect Heights 6.1 mi 10.00 pCi/L 1
Vernon Hills 7.0 mi 7.00 pCi/L 3

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.

Radon FAQ for Deerfield, IL

What is the average radon level in Deerfield, IL?
Based on 1 user-submitted test, the average radon level in Deerfield is 4.00 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 Deerfield in?
Deerfield and the 60015 zip code are in Lake 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 Deerfield?
Radon mitigation in Deerfield 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 Deerfield?
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.