Percy, IL Radon Levels

Q: What EPA Radon Zone is Percy in?

Percy is in Randolph County, EPA Zone 2.

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

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

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

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

Percy, IL Radon Facts

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

County Randolph County, IL

Zip Code 62272

Positioned in southern Illinois's Randolph County on the Illinois side of the St. Louis metropolitan area, this rural community sits where Mississippi River floodplain deposits meet underlying Mississippian limestone formations. Testing data for zip 62272 remains limited, though the area's geological setting suggests moderate radon potential that warrants professional assessment for homeowners. The region's mix of older rural properties and newer residential development creates varied conditions for radon gas accumulation from bedrock sources.

7.83

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.83 pCi/L, based on 18 tests from 10 nearby cities. No readings have been submitted for Percy 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+

Percy, 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 Percy, IL

No homeowner tests have been submitted for Percy 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
Campbell Hill	6.5 mi	1.00 pCi/L	1
Marissa	17.6 mi	4.00 pCi/L	1
Murphysboro	23.1 mi	10.00 pCi/L	1
Mascoutah	33.2 mi	6.50 pCi/L	2
Waterloo	35.9 mi	9.20 pCi/L	5
Belleville	41.4 mi	7.33 pCi/L	3
O Fallon	41.5 mi	6.00 pCi/L	1
Lebanon	42.1 mi	10.50 pCi/L	2

Randolph County Radon Profile

Randolph County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Randolph County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Randolph County.

Radon FAQ for Percy, IL

What EPA Radon Zone is Percy in?

Percy and the 62272 zip code are in Randolph 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 Percy?

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

Radon mitigation in Percy 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 Percy?

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.