Lewistown, IL Radon Levels

Q: What EPA Radon Zone is Lewistown in?

Lewistown is in Fulton County, EPA Zone 1.

Q: How much does radon mitigation cost in Lewistown?

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

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

Lewistown, IL Radon Facts

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

County Fulton County, IL

Zip Code 61542

Positioned in Fulton County in west-central Illinois, Lewistown falls within EPA Zone 1 where elevated radon readings are common throughout the state's glacial till regions. The area's deep loess deposits over limestone bedrock create conditions conducive to radon gas production and migration into homes. Given the limited testing data available for zip code 61542, homeowners are encouraged to conduct radon tests to determine their specific exposure levels.

6.00

pCi/L area average

Above EPA Action Level

Fulton County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Lewistown 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+

Lewistown, 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 Lewistown, IL

No homeowner tests have been submitted for Lewistown 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
Cuba	8.2 mi	6.00 pCi/L	1
Mapleton	27.9 mi	8.00 pCi/L	1
Lincolns New Salem	31.2 mi	8.00 pCi/L	1
Peoria	35.9 mi	5.00 pCi/L	1
Knoxville	37.1 mi	8.00 pCi/L	1
East Peoria	37.6 mi	8.00 pCi/L	3
Dunlap	41.8 mi	7.00 pCi/L	1
Williamsville	43.7 mi	1.00 pCi/L	1

Fulton County Radon Profile

Fulton County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Fulton County average 6.00 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 Fulton County to test, as levels can differ between neighboring homes.

Radon FAQ for Lewistown, IL

What EPA Radon Zone is Lewistown in?

Lewistown and the 61542 zip code are in Fulton 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 Lewistown?

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

Radon mitigation in Lewistown 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 Lewistown?

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.