Smithboro, IL Radon Levels

Q: What EPA Radon Zone is Smithboro in?

Smithboro is in Bond County, EPA Zone 2.

Q: How much does radon mitigation cost in Smithboro?

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

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

Smithboro, IL Radon Facts

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

County Bond County, IL

Zip Code 62284

Situated in Bond County within the St. Louis Metro area, Smithboro rests on glacial deposits and underlying Mississippian limestone that contribute to moderate radon potential across south-central Illinois. The community features a mix of historic farmhouses and newer suburban development, many with partial or full basements typical of traditional Midwest construction. With testing data limited for zip code 62284, local residents should consider radon testing to establish safe indoor air quality levels in this EPA Zone 2 area.

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 Smithboro 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+

Smithboro, 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 Smithboro, IL

No homeowner tests have been submitted for Smithboro 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
Carlyle	18.7 mi	13.00 pCi/L	1
Highland	20.5 mi	6.00 pCi/L	1
Staunton	26.5 mi	8.00 pCi/L	1
Troy	31.1 mi	4.00 pCi/L	1
Lebanon	31.5 mi	10.50 pCi/L	2
Kell	33.4 mi	5.00 pCi/L	1
Glen Carbon	35.5 mi	2.50 pCi/L	2
Maryville	36.2 mi	11.00 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 Smithboro, IL

What EPA Radon Zone is Smithboro in?

Smithboro and the 62284 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 Smithboro?

No homeowner radon tests have been submitted for Smithboro 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 Smithboro 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 Smithboro?

Radon mitigation in Smithboro 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 Smithboro?

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.