Great Lakes, IL Radon Levels

Q: What EPA Radon Zone is Great Lakes in?

Great Lakes is in Lake County, EPA Zone 2.

Q: How much does radon mitigation cost in Great Lakes?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Great Lakes, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Lake County, IL

Zip Code 60088

Positioned in Lake County along the northern suburban corridor of the Chicago metro, Great Lakes sits atop glacial till deposits that create favorable conditions for radon accumulation. The area's housing stock primarily consists of mid-century homes with full basements, providing enclosed below-grade spaces where radon can concentrate. Given the limited testing data for zip code 60088, local homeowners should prioritize radon testing to establish baseline readings.

6.68

pCi/L area average

Above EPA Action Level

Lake County average: 6.68 pCi/L, based on 59 user-submitted tests across 19 cities in the county. No homeowner readings have been submitted for Great Lakes itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Great Lakes, 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 Great Lakes, IL

No homeowner tests have been submitted for Great Lakes 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.

City	Distance	Avg User Level	Readings
Lake Bluff	1.5 mi	4.00 pCi/L	1
Lake Forest	4.6 mi	10.00 pCi/L	1
Libertyville	4.6 mi	9.33 pCi/L	3
Waukegan	5.1 mi	4.00 pCi/L	1
Gurnee	6.0 mi	5.00 pCi/L	2
Vernon Hills	7.5 mi	7.00 pCi/L	3
Mundelein	7.7 mi	8.00 pCi/L	3
Lincolnshire	8.0 mi	6.00 pCi/L	1

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 Great Lakes, IL

What EPA Radon Zone is Great Lakes in?

Great Lakes and the 60088 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.

Why are radon readings shown from areas near Great Lakes?

No homeowner radon tests have been submitted for Great Lakes yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Lake County average—are the best available indicator of local conditions until Great Lakes 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 Great Lakes?

Radon mitigation in Great Lakes 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 Great Lakes?

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.