Dahlgren, IL Radon Levels

Q: What EPA Radon Zone is Dahlgren in?

Dahlgren is in Hamilton County, EPA Zone 2.

Q: How much does radon mitigation cost in Dahlgren?

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

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

Dahlgren, IL Radon Facts

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

County Hamilton County, IL

Zip Code 62828

Situated in Hamilton County in southern Illinois, Dahlgren lies within the Illinois Basin where coal-bearing formations and underlying limestone influence local radon conditions. Testing data for ZIP code 62828 remains limited, though the area's geological setting warrants homeowner attention to radon potential. The community's mix of older homes and rural properties can show varying radon levels depending on foundation characteristics.

6.71

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.71 pCi/L, based on 7 tests from 6 nearby cities. No readings have been submitted for Dahlgren 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+

Dahlgren, 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 Dahlgren, IL

No homeowner tests have been submitted for Dahlgren 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
Mount Vernon	17.0 mi	4.00 pCi/L	1
Kell	26.5 mi	5.00 pCi/L	1
Marion	36.3 mi	5.00 pCi/L	1
Mount Carmel	48.2 mi	5.00 pCi/L	2
Murphysboro	48.2 mi	10.00 pCi/L	1
Carlyle	49.2 mi	13.00 pCi/L	1

Hamilton County Radon Profile

The soils and bedrock of Hamilton 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 Hamilton 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 Hamilton County to test, as levels can differ between neighboring homes.

Radon FAQ for Dahlgren, IL

What EPA Radon Zone is Dahlgren in?

Dahlgren and the 62828 zip code are in Hamilton 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 Dahlgren?

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

Radon mitigation in Dahlgren 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 Dahlgren?

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.