Winthrop Harbor, IL Radon Levels

Q: What EPA Radon Zone is Winthrop Harbor in?

Winthrop Harbor is in Lake County, EPA Zone 2.

Q: How much does radon mitigation cost in Winthrop Harbor?

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

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

Winthrop Harbor, IL Radon Facts

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

County Lake County, IL

Zip Code 60096

Positioned along Lake Michigan's shoreline in Lake County within the Chicago Metro area, Winthrop Harbor sits on glacial till deposits over limestone bedrock that create favorable conditions for radon production. The lakefront community features a mix of year-round residences and seasonal homes, many with full basements typical of northern Illinois construction. While specific testing data for zip code 60096 is currently limited, homeowners should consider radon testing given the region's geological characteristics and the prevalence of below-grade living spaces.

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 Winthrop Harbor 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+

Winthrop Harbor, IL Radon Mitigation

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

Need Radon Mitigation or Testing in Winthrop Harbor?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Lake County Pros

1-800-299-3578 847-213-9067 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Winthrop Harbor, IL

No homeowner tests have been submitted for Winthrop Harbor 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
Zion	2.5 mi	4.00 pCi/L	1
Wadsworth	4.3 mi	9.50 pCi/L	2
Waukegan	7.2 mi	4.00 pCi/L	1
Gurnee	9.7 mi	5.00 pCi/L	2
Lake Bluff	13.7 mi	4.00 pCi/L	1
Grayslake	14.3 mi	5.00 pCi/L	7
Antioch	14.6 mi	7.00 pCi/L	4
Libertyville	15.0 mi	9.33 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 Winthrop Harbor, IL

What EPA Radon Zone is Winthrop Harbor in?

Winthrop Harbor and the 60096 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 Winthrop Harbor?

No homeowner radon tests have been submitted for Winthrop Harbor 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 Winthrop Harbor 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 Winthrop Harbor?

Radon mitigation in Winthrop Harbor 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 Winthrop Harbor?

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.