Clinton, IL Radon Levels

Q: What EPA Radon Zone is Clinton in?

Clinton is in De Witt County, EPA Zone 1.

Q: How much does radon mitigation cost in Clinton?

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

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

Clinton, IL Radon Facts

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

County De Witt County, IL

Zip Code 61727

Located in central Illinois within De Witt County, this prairie community experiences the moderate-to-high radon potential typical of the glacial moraine region. While specific testing data for zip code 61727 is currently unavailable, the deep glacial drift over limestone bedrock throughout central Illinois creates soil conditions favorable for radon gas production. Homeowners should prioritize radon testing given the area's geological profile and EPA Zone 1 classification.

8.06

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.06 pCi/L, based on 18 tests from 10 nearby cities. No readings have been submitted for Clinton 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+

Clinton, 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 Clinton, IL

No homeowner tests have been submitted for Clinton 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
Le Roy	17.4 mi	5.00 pCi/L	1
Bloomington	21.8 mi	11.33 pCi/L	3
Monticello	22.5 mi	4.50 pCi/L	2
Normal	25.2 mi	7.25 pCi/L	4
Mahomet	30.3 mi	5.00 pCi/L	1
Mackinaw	33.7 mi	20.00 pCi/L	1
Williamsville	33.8 mi	1.00 pCi/L	1
Moweaqua	36.3 mi	7.00 pCi/L	1

De Witt County Radon Profile

Because of its underlying geology, De Witt County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for De Witt 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 De Witt County home regardless of zone or a neighbor's results.

Radon FAQ for Clinton, IL

What EPA Radon Zone is Clinton in?

Clinton and the 61727 zip code are in De Witt 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 Clinton?

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

Radon mitigation in Clinton 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 Clinton?

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.