Greenville, IL Radon Levels

Q: What EPA Radon Zone is Greenville in?

Greenville is in Bond County, EPA Zone 2.

Q: How much does radon mitigation cost in Greenville?

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

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

Greenville, IL Radon Facts

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

County Bond County, IL

Zip Code 62246

Part of the St. Louis Metro area, this Bond County community sits on deep glacial deposits over limestone bedrock that can contribute to radon gas production. Greenville's zip code 62246 features a mix of historic downtown properties and suburban homes, many with full or partial basements common to the region. While specific testing data is limited, homeowners should conduct radon testing as the area's geological conditions can support radon accumulation.

7.08

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.08 pCi/L, based on 13 tests from 10 nearby cities. No readings have been submitted for Greenville 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+

Greenville, 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 Greenville, IL

No homeowner tests have been submitted for Greenville 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
Highland	17.3 mi	6.00 pCi/L	1
Carlyle	19.9 mi	13.00 pCi/L	1
Staunton	22.1 mi	8.00 pCi/L	1
Troy	27.7 mi	4.00 pCi/L	1
Lebanon	29.1 mi	10.50 pCi/L	2
Glen Carbon	31.8 mi	2.50 pCi/L	2
Maryville	32.6 mi	11.00 pCi/L	1
Collinsville	34.4 mi	5.00 pCi/L	1

Bond County Radon Profile

Bond 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 Bond 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 Bond County.

Radon FAQ for Greenville, IL

What EPA Radon Zone is Greenville in?

Greenville and the 62246 zip code are in Bond 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 Greenville?

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

Radon mitigation in Greenville 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 Greenville?

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.