Island Lake, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Island Lake in?

Island Lake is in McHenry County, EPA Zone 2.

Q: How much does radon mitigation cost in Island Lake?

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

McHenry County

EPA Zone 2

Situated in McHenry County within the northwest suburban Chicago metro area, Island Lake sits atop glacial till deposits that create favorable conditions for radon gas production and migration. While specific local testing data is limited, Illinois's geological conditions make radon testing essential for homes in zip code 60042. The community features predominantly postwar suburban housing with full basement foundations common to the region.

Island Lake, IL Radon Mitigation

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

Island Lake, IL Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Island Lake Radon Facts

Key details about the radon risk profile for Island Lake and the 60042 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

McHenry County, IL

Zip Code

60042

Predicted Screening Level

2–4 pCi/L (Zone 2)

Island Lake and the 60042 zip code are located in McHenry County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Island Lake, IL

What EPA Radon Zone is Island Lake in?

Island Lake and the 60042 zip code are in McHenry 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 Island Lake?

Radon mitigation in Island Lake 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 Island Lake?

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.

Most Active Radon Markets in Illinois

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4