Bluffs, IL Radon Levels

Q: What EPA Radon Zone is Bluffs in?

Bluffs is in Scott County, EPA Zone 1.

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

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

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

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

Bluffs, IL Radon Facts

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

County Scott County, IL

Zip Code 62621

Located in Scott County in west-central Illinois, Bluffs sits near the Illinois River where alluvial soils over limestone bedrock can create variable radon conditions. Testing data is currently unavailable for this 62621 zip code community, making individual radon testing important for area homeowners. Illinois River valley geology, combined with underlying Pennsylvanian formations, can produce moderate radon potential that varies significantly by location.

6.23

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.23 pCi/L, based on 13 tests from 10 nearby cities. No readings have been submitted for Bluffs 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+

Bluffs, 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 Bluffs, IL

No homeowner tests have been submitted for Bluffs 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
Griggsville	10.4 mi	4.00 pCi/L	1
Jacksonville	16.1 mi	9.00 pCi/L	2
Pittsfield	17.1 mi	5.00 pCi/L	1
White Hall	21.9 mi	6.00 pCi/L	1
Auburn	42.9 mi	6.00 pCi/L	1
Jerseyville	43.3 mi	3.50 pCi/L	2
Chatham	43.8 mi	3.00 pCi/L	1
Lincolns New Salem	44.6 mi	8.00 pCi/L	1

Scott County Radon Profile

Because of its underlying geology, Scott 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 Scott 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 Scott County home regardless of zone or a neighbor's results.

Radon FAQ for Bluffs, IL

What EPA Radon Zone is Bluffs in?

Bluffs and the 62621 zip code are in Scott 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 Bluffs?

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

Radon mitigation in Bluffs 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 Bluffs?

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.