Harmony, MN Radon Levels

Q: What EPA Radon Zone is Harmony in?

Harmony is in Fillmore County, EPA Zone 1.

Q: How much does radon mitigation cost in Harmony?

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

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

Harmony, MN Radon Facts

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

County Fillmore County, MN

Zip Code 55939

Nestled in Fillmore County within the Rochester Metro, Harmony sits atop karst limestone terrain that can create unpredictable radon patterns from home to home. While specific testing data for the 55939 zip code community is currently sparse, the area's geological complexity makes professional radon testing particularly important for establishing safe indoor air quality.

7.17

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.17 pCi/L, based on 6 tests from 5 nearby cities. No readings have been submitted for Harmony 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+

Harmony, 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 Harmony?

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Radon Readings Near Harmony, MN

No homeowner tests have been submitted for Harmony 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	24.8 mi	8.00 pCi/L	1
Winona	35.7 mi	10.00 pCi/L	1
Minnesota City	38.2 mi	7.00 pCi/L	1
La Crescent	38.9 mi	7.50 pCi/L	2
Lyle	46.1 mi	3.00 pCi/L	1

Fillmore County Radon Profile

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

Radon FAQ for Harmony, MN

What EPA Radon Zone is Harmony in?

Harmony and the 55939 zip code are in Fillmore 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 Harmony?

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

Radon mitigation in Harmony 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 Harmony?

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.