Energy, IL Radon Levels

Q: What EPA Radon Zone is Energy in?

Energy is in Williamson County, EPA Zone 2.

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

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

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

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

Energy, IL Radon Facts

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

County Williamson County, IL

Zip Code 62933

Small Energy sits in Williamson County within Illinois's coal belt region, where Pennsylvanian-era coal measures and shale deposits create moderate radon potential. Testing data for zip code 62933 is presently limited, making professional radon testing advisable for homeowners in this southern Illinois community.

5.00

pCi/L area average

Above EPA Action Level

Williamson 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 Energy 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+

Energy, 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 Energy, IL

No homeowner tests have been submitted for Energy 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	6.1 mi	5.00 pCi/L	1
Murphysboro	16.8 mi	10.00 pCi/L	1
Campbell Hill	32.0 mi	1.00 pCi/L	1
Mount Vernon	38.1 mi	4.00 pCi/L	1

Williamson County Radon Profile

EPA mapping assigns Williamson County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 1 city in Williamson 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. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Williamson County home regardless of zone or a neighbor's results.

Radon FAQ for Energy, IL

What EPA Radon Zone is Energy in?

Energy and the 62933 zip code are in Williamson 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 Energy?

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

Radon mitigation in Energy 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 Energy?

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.