Benton, IL Radon Levels

Q: What EPA Radon Zone is Benton in?

Benton is in Franklin County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Benton yet, so readings from the closest cities and the Franklin 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 Benton?

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

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

Benton, IL Radon Facts

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

County Franklin County, IL

Zip Code 62812

Benton sits in Franklin County in southern Illinois, positioned within the state's coal-bearing geological region where Pennsylvanian-era formations create generally moderate radon conditions. The small city in zip code 62812 features a mix of historic homes and newer construction, many with full or partial basements typical of the region. While comprehensive radon testing data for Benton is currently limited, homeowners should consider testing given the area's complex geology and the potential for radon accumulation in basement spaces.

6.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.00 pCi/L, based on 7 tests from 7 nearby cities. No readings have been submitted for Benton 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+

Benton, 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 Benton, IL

No homeowner tests have been submitted for Benton 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
Marion	19.0 mi	5.00 pCi/L	1
Mount Vernon	21.9 mi	4.00 pCi/L	1
Murphysboro	27.6 mi	10.00 pCi/L	1
Kell	35.6 mi	5.00 pCi/L	1
Campbell Hill	36.2 mi	1.00 pCi/L	1
Marissa	48.1 mi	4.00 pCi/L	1
Carlyle	48.7 mi	13.00 pCi/L	1

Franklin County Radon Profile

EPA mapping assigns Franklin County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Franklin County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Franklin County home regardless of zone or a neighbor's results.

Radon FAQ for Benton, IL

What EPA Radon Zone is Benton in?

Benton and the 62812 zip code are in Franklin 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 Benton?

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

Radon mitigation in Benton 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 Benton?

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.