Gibbon, MN Radon Levels

Q: What EPA Radon Zone is Gibbon in?

Gibbon is in Sibley County, EPA Zone 1.

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

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

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

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

Gibbon, MN Radon Facts

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

County Sibley County, MN

Zip Code 55335

Situated in Sibley County in south-central Minnesota, Gibbon lies in the glaciated prairie region where till deposits can influence radon accumulation patterns. Current testing data for zip code 55335 remains limited, making individual home testing essential for area residents. Minnesota's glacial landscape often produces elevated radon levels, particularly in homes with full basements common to rural communities.

7.75

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.75 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Gibbon 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+

Gibbon, 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 Gibbon?

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Radon Readings Near Gibbon, MN

No homeowner tests have been submitted for Gibbon 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
Stewart	12.3 mi	4.00 pCi/L	1
Sleepy Eye	21.2 mi	12.00 pCi/L	1
Hutchinson	24.4 mi	7.50 pCi/L	2
Nicollet	26.7 mi	2.00 pCi/L	1
Mankato	35.9 mi	14.00 pCi/L	1
Willmar	47.0 mi	14.00 pCi/L	1
New Prague	47.6 mi	9.00 pCi/L	2
Victoria	48.3 mi	4.00 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 Gibbon, MN

What EPA Radon Zone is Gibbon in?

Gibbon and the 55335 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 Gibbon?

No homeowner radon tests have been submitted for Gibbon 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 Gibbon 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 Gibbon?

Radon mitigation in Gibbon 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 Gibbon?

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.