Saint Elmo, IL Radon Levels

Q: What EPA Radon Zone is Saint Elmo in?

Saint Elmo is in Fayette County, EPA Zone 2.

Q: How much does radon mitigation cost in Saint Elmo?

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

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

Saint Elmo, IL Radon Facts

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

County Fayette County, IL

Zip Code 62458

Saint Elmo sits in south-central Illinois's Fayette County, where Pennsylvanian-era coal measures and underlying limestone create moderate radon conditions typical of the region. While specific testing data for zip code 62458 is currently unavailable, the area's geological setting warrants homeowner attention to radon risk. Properties with full or partial basements, common in this part of Illinois, should undergo professional radon testing to ensure safe indoor air quality.

7.36

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.36 pCi/L, based on 14 tests from 10 nearby cities. No readings have been submitted for Saint Elmo 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+

Saint Elmo, 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 Saint Elmo, IL

No homeowner tests have been submitted for Saint Elmo 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
Effingham	17.0 mi	4.33 pCi/L	3
Shelbyville	29.6 mi	17.00 pCi/L	1
Kell	35.8 mi	5.00 pCi/L	1
Mattoon	40.2 mi	9.33 pCi/L	3
Carlyle	40.8 mi	13.00 pCi/L	1
Moweaqua	41.9 mi	7.00 pCi/L	1
Taylorville	42.8 mi	2.00 pCi/L	1
Highland	48.0 mi	6.00 pCi/L	1

Fayette County Radon Profile

Fayette County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Fayette 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 Fayette County.

Radon FAQ for Saint Elmo, IL

What EPA Radon Zone is Saint Elmo in?

Saint Elmo and the 62458 zip code are in Fayette 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 Saint Elmo?

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

Radon mitigation in Saint Elmo 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 Saint Elmo?

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.