Greenview, IL Radon Levels

Q: What EPA Radon Zone is Greenview in?

Greenview is in Menard County, EPA Zone 1.

Q: How much does radon mitigation cost in Greenview?

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

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

Greenview, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Menard County, IL

Zip Code 62642

Situated in Menard County (62642) within the Springfield metro area of central Illinois, this community sits atop glacial deposits over limestone bedrock that can create variable radon conditions across the region. Testing data for this area is currently limited, making individual home testing valuable for residents. The community's housing includes both historic rural structures and newer residential development, with many homes featuring the full or partial basements typical of Illinois construction practices in areas with deep frost lines.

8.00

pCi/L area average

Above EPA Action Level

Menard County average: 8.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Greenview 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+

Greenview, 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 Greenview, IL

No homeowner tests have been submitted for Greenview 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
Lincolns New Salem	5.3 mi	8.00 pCi/L	1
Williamsville	14.6 mi	1.00 pCi/L	1
Springfield	22.0 mi	6.50 pCi/L	2
Chatham	29.6 mi	3.00 pCi/L	1
Auburn	35.2 mi	6.00 pCi/L	1
Mapleton	35.3 mi	8.00 pCi/L	1
Cuba	35.8 mi	6.00 pCi/L	1
Jacksonville	36.0 mi	9.00 pCi/L	2

Menard County Radon Profile

The bedrock and soils beneath Menard County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Menard County average 8.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Menard County.

Radon FAQ for Greenview, IL

What EPA Radon Zone is Greenview in?

Greenview and the 62642 zip code are in Menard County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Greenview?

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

Radon mitigation in Greenview 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 Greenview?

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.