Frederick, IL Radon Levels

Q: What EPA Radon Zone is Frederick in?

Frederick is in Schuyler County, EPA Zone 1.

Q: How much does radon mitigation cost in Frederick?

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

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

Frederick, IL Radon Facts

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

County Schuyler County, IL

Zip Code 62639

Located in western Illinois within Schuyler County, Frederick sits in an area where glacial deposits over limestone bedrock create conditions favorable for radon accumulation. Testing data for this community remains limited, making it important for homeowners to conduct independent radon testing. Given the geological characteristics common to this region, residents should prioritize basement and foundation testing to ensure indoor air quality.

6.08

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.08 pCi/L, based on 13 tests from 10 nearby cities. No readings have been submitted for Frederick yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Frederick, 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 Frederick, IL

No homeowner tests have been submitted for Frederick 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
Jacksonville	25.5 mi	9.00 pCi/L	2
Griggsville	29.5 mi	4.00 pCi/L	1
Cuba	32.4 mi	6.00 pCi/L	1
Lincolns New Salem	34.1 mi	8.00 pCi/L	1
Pittsfield	38.1 mi	5.00 pCi/L	1
White Hall	44.3 mi	6.00 pCi/L	1
Springfield	45.4 mi	6.50 pCi/L	2
Chatham	46.9 mi	3.00 pCi/L	1

Schuyler County Radon Profile

The bedrock and soils beneath Schuyler County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. User-submitted readings are still sparse within Schuyler County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Schuyler County.

Radon FAQ for Frederick, IL

What EPA Radon Zone is Frederick in?

Frederick and the 62639 zip code are in Schuyler 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 Frederick?

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

Radon mitigation in Frederick 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 Frederick?

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.