Henderson, MN Radon Levels

Q: What EPA Radon Zone is Henderson in?

Henderson is in Sibley County, EPA Zone 1.

Q: How much does radon mitigation cost in Henderson?

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

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

Henderson, MN Radon Facts

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

County Sibley County, MN

Zip Code 56044

Positioned in Sibley County within the Minneapolis-St. Paul Metro area, Henderson sits in south-central Minnesota where glacial deposits over sedimentary bedrock contribute to the state's elevated radon potential. Testing data for this community is currently limited, making professional radon testing particularly important given Minnesota's well-documented radon concerns. The region's rich agricultural soils and glacial geology create conditions that can lead to significant radon accumulation in homes with basements.

6.25

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.25 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Henderson 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+

Henderson, MN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Need Radon Mitigation or Testing in Henderson?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Sibley County Pros

1-800-299-3578 507-369-2661 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Henderson, MN

No homeowner tests have been submitted for Henderson 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
New Prague	17.4 mi	9.00 pCi/L	2
Montgomery	18.7 mi	5.00 pCi/L	1
Nicollet	22.0 mi	2.00 pCi/L	1
Chaska	24.7 mi	7.00 pCi/L	1
Mankato	24.7 mi	14.00 pCi/L	1
Victoria	26.2 mi	4.00 pCi/L	1
Shakopee	26.5 mi	6.50 pCi/L	2
Prior Lake	28.5 mi	5.00 pCi/L	1

Sibley County Radon Profile

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

Radon FAQ for Henderson, MN

What EPA Radon Zone is Henderson in?

Henderson and the 56044 zip code are in Sibley 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 Henderson?

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

Radon mitigation in Henderson 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 Henderson?

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.