Hillsboro, IL Radon Levels

Q: What EPA Radon Zone is Hillsboro in?

Hillsboro is in Montgomery County, EPA Zone 2.

Q: How much does radon mitigation cost in Hillsboro?

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

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

Hillsboro, IL Radon Facts

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

County Montgomery County, IL

Zip Code 62049

Located in Montgomery County in south-central Illinois, Hillsboro sits over Pennsylvanian-era coal measures and underlying limestone that can contribute to radon accumulation. The community's housing stock in zip code 62049 spans from early 1900s homes to newer construction, many featuring full or partial basements typical of central Illinois. Testing data is currently limited, encouraging residents to establish individual radon baselines.

5.82

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 5.82 pCi/L, based on 11 tests from 10 nearby cities. No readings have been submitted for Hillsboro 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+

Hillsboro, 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 Hillsboro, IL

No homeowner tests have been submitted for Hillsboro 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
Staunton	18.5 mi	8.00 pCi/L	1
Carlinville	22.4 mi	9.00 pCi/L	1
Highland	28.6 mi	6.00 pCi/L	1
Taylorville	29.5 mi	2.00 pCi/L	1
Divernon	30.5 mi	7.00 pCi/L	1
Auburn	33.5 mi	6.00 pCi/L	1
Troy	35.9 mi	4.00 pCi/L	1
East Alton	37.0 mi	4.00 pCi/L	1

Montgomery County Radon Profile

The soils and bedrock of Montgomery County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Few homeowner tests have been logged inside Montgomery County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Montgomery County to test, as levels can differ between neighboring homes.

Radon FAQ for Hillsboro, IL

What EPA Radon Zone is Hillsboro in?

Hillsboro and the 62049 zip code are in Montgomery 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 Hillsboro?

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

Radon mitigation in Hillsboro 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 Hillsboro?

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.