Oakdale, IL Radon Levels

Q: What EPA Radon Zone is Oakdale in?

Oakdale is in Washington County, EPA Zone 2.

Q: How much does radon mitigation cost in Oakdale?

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

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

Oakdale, IL Radon Facts

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

County Washington County, IL

Zip Code 62268

Found in Washington County in south-central Illinois, Oakdale (62268) currently lacks comprehensive radon testing data for the area. The region's Pennsylvanian-era coal measures and shale deposits in the Illinois Basin create generally moderate radon conditions, though individual homes can vary. Residents should consider testing their properties, especially those with basement foundations typical of the area's housing stock built throughout the mid-20th century.

7.89

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.89 pCi/L, based on 19 tests from 10 nearby cities. No readings have been submitted for Oakdale 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+

Oakdale, 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 Oakdale, IL

No homeowner tests have been submitted for Oakdale 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
Marissa	8.4 mi	4.00 pCi/L	1
Mascoutah	18.2 mi	6.50 pCi/L	2
Campbell Hill	23.1 mi	1.00 pCi/L	1
Lebanon	26.4 mi	10.50 pCi/L	2
Carlyle	26.8 mi	13.00 pCi/L	1
O Fallon	27.1 mi	6.00 pCi/L	1
Belleville	28.8 mi	7.33 pCi/L	3
Waterloo	30.3 mi	9.20 pCi/L	5

Washington County Radon Profile

The soils and bedrock of Washington County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Few homeowner tests have been logged inside Washington County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Washington County to test, as levels can differ between neighboring homes.

Radon FAQ for Oakdale, IL

What EPA Radon Zone is Oakdale in?

Oakdale and the 62268 zip code are in Washington 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 Oakdale?

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

Radon mitigation in Oakdale 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 Oakdale?

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.