Garden Prairie, IL Radon Levels

Q: What EPA Radon Zone is Garden Prairie in?

Garden Prairie is in Boone County, EPA Zone 1.

Q: How much does radon mitigation cost in Garden Prairie?

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

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

Garden Prairie, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Boone County, IL

Zip Code 61038

Situated in Boone County in the northwest suburban and exurban belt beyond the Chicago metro, Garden Prairie rests on glacial till deposits from the Wisconsin glaciation that create soil conditions highly favorable for radon gas production. Testing data for zip code 61038 remains limited, making individual home testing essential for residents. The area's widely spaced residential properties feature a mix of older farmhouses and newer homes, each potentially experiencing different radon accumulation rates.

5.75

pCi/L area average

Above EPA Action Level

Boone County average: 5.75 pCi/L, based on 4 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Garden Prairie 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+

Garden Prairie, 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 Garden Prairie, IL

No homeowner tests have been submitted for Garden Prairie 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
Belvidere	5.5 mi	4.50 pCi/L	2
Marengo	7.0 mi	5.50 pCi/L	2
Poplar Grove	9.0 mi	7.00 pCi/L	2
Kingston	10.1 mi	13.00 pCi/L	1
Harvard	13.8 mi	8.00 pCi/L	2
Woodstock	15.9 mi	12.50 pCi/L	2
Huntley	17.0 mi	5.75 pCi/L	4
Roscoe	17.4 mi	5.50 pCi/L	2

Boone County Radon Profile

Because of its underlying geology, Boone County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 2 cities in Boone County average 5.75 pCi/L across 4 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 Boone County home regardless of zone or a neighbor's results.

Radon FAQ for Garden Prairie, IL

What EPA Radon Zone is Garden Prairie in?

Garden Prairie and the 61038 zip code are in Boone County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Garden Prairie?

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

Radon mitigation in Garden Prairie 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 Garden Prairie?

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.