Stonington, IL Radon Levels

Q: What EPA Radon Zone is Stonington in?

Stonington is in Christian County, EPA Zone 2.

Q: How much does radon mitigation cost in Stonington?

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

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

Stonington, IL Radon Facts

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

County Christian County, IL

Zip Code 62567

Situated in Christian County in central Illinois, Stonington rests on glacial deposits over limestone bedrock formations that contribute to the region's moderate-to-high radon potential. Testing data for zip code 62567 remains limited, making individual home assessment crucial for residents. The area's prairie soils and typical Illinois basement construction create conditions where radon can accumulate, emphasizing the importance of testing.

2.00

pCi/L area average

Below EPA Action Level

Christian County average: 2.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Stonington 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+

Stonington, 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 Stonington, IL

No homeowner tests have been submitted for Stonington 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
Taylorville	8.4 mi	2.00 pCi/L	1
Moweaqua	9.2 mi	7.00 pCi/L	1
Shelbyville	24.1 mi	17.00 pCi/L	1
Divernon	25.6 mi	7.00 pCi/L	1
Springfield	26.7 mi	6.50 pCi/L	2
Chatham	27.8 mi	3.00 pCi/L	1
Williamsville	28.8 mi	1.00 pCi/L	1
Auburn	29.6 mi	6.00 pCi/L	1

Christian County Radon Profile

EPA mapping assigns Christian 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 1 city in Christian County average 2.00 pCi/L across 1 test — below the EPA's 4 pCi/L action level, though radon varies sharply from home to home. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Christian County home regardless of zone or a neighbor's results.

Radon FAQ for Stonington, IL

What EPA Radon Zone is Stonington in?

Stonington and the 62567 zip code are in Christian 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 Stonington?

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

Radon mitigation in Stonington 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 Stonington?

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.