Grant Park, IL Radon Levels

Q: What EPA Radon Zone is Grant Park in?

Grant Park is in Kankakee County, EPA Zone 2.

Q: How much does radon mitigation cost in Grant Park?

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

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

Grant Park, IL Radon Facts

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

County Kankakee County, IL

Zip Code 60940

Located in Kankakee County south of Chicago, Grant Park sits over glacial till deposits from the Wisconsin glaciation that create favorable conditions for radon production. Testing data for zip code 60940 remains limited, though the region's glacial drift over limestone bedrock typically produces moderate-to-high radon levels. Homeowners in this small community should prioritize radon testing, particularly given northern Illinois's well-documented radon potential.

8.80

pCi/L area average

Above EPA Action Level

Kankakee County average: 8.80 pCi/L, based on 5 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Grant Park 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+

Grant Park, 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 Grant Park, IL

No homeowner tests have been submitted for Grant Park 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
Manteno	10.3 mi	11.67 pCi/L	3
Bradley	13.1 mi	5.00 pCi/L	1
Bourbonnais	13.3 mi	4.00 pCi/L	1
Crete	13.4 mi	15.00 pCi/L	1
Richton Park	16.7 mi	3.00 pCi/L	2
Matteson	18.8 mi	15.00 pCi/L	1
Flossmoor	20.3 mi	5.00 pCi/L	1
Manhattan	21.2 mi	8.00 pCi/L	1

Kankakee County Radon Profile

EPA mapping assigns Kankakee County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 3 cities in Kankakee County average 8.80 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Kankakee County home regardless of zone or a neighbor's results.

Radon FAQ for Grant Park, IL

What EPA Radon Zone is Grant Park in?

Grant Park and the 60940 zip code are in Kankakee 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 Grant Park?

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

Radon mitigation in Grant Park 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 Grant Park?

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.