Sumner, IL Radon Levels

Q: What EPA Radon Zone is Sumner in?

Sumner is in Lawrence County, EPA Zone 2.

Q: Why are radon readings shown from areas near Sumner?

No homeowner radon tests have been submitted for Sumner yet, so readings from the closest cities and the Lawrence County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Sumner?

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

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

Sumner, IL Radon Facts

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

County Lawrence County, IL

Zip Code 62466

Found in Lawrence County within southeastern Illinois (zip code 62466), Sumner sits above Pennsylvanian-era geological formations that can influence local radon patterns. While comprehensive testing data is not yet available for this community, the underlying bedrock and soil conditions suggest moderate radon potential. Residents should consider testing their homes to establish baseline radon levels for their specific properties.

5.00

pCi/L area average

Above EPA Action Level

Lawrence County average: 5.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Sumner itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Sumner, 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 Sumner, IL

No homeowner tests have been submitted for Sumner 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
Bridgeport	5.3 mi	5.00 pCi/L	1
Mount Carmel	21.3 mi	5.00 pCi/L	2
Palestine	23.8 mi	18.50 pCi/L	2
Effingham	46.8 mi	4.33 pCi/L	3

Lawrence County Radon Profile

The soils and bedrock of Lawrence County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Lawrence County average 5.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Lawrence County to test, as levels can differ between neighboring homes.

Radon FAQ for Sumner, IL

What EPA Radon Zone is Sumner in?

Sumner and the 62466 zip code are in Lawrence 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 Sumner?

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

Radon mitigation in Sumner 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 Sumner?

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.