Dexter, MN Radon Levels

Q: What EPA Radon Zone is Dexter in?

Dexter is in Mower County, EPA Zone 1.

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

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

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

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

Dexter, MN Radon Facts

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

County Mower County, MN

Zip Code 55926

Southeastern Minnesota community Dexter sits in Mower County where Paleozoic limestone bedrock can produce elevated radon levels throughout the region. Though testing data for this 55926 zip code area remains limited, the geological context strongly supports radon testing. Minnesota's karst limestone formations create conditions particularly favorable for radon gas production and migration into homes.

5.50

pCi/L area average

Above EPA Action Level

Mower County average: 5.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Dexter itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Dexter, MN 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 Dexter, MN

No homeowner tests have been submitted for Dexter 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
Lyle	16.4 mi	3.00 pCi/L	1
Le Roy	16.8 mi	8.00 pCi/L	1
Blooming Prairie	20.9 mi	4.00 pCi/L	1
Albert Lea	32.5 mi	7.00 pCi/L	1
Faribault	48.6 mi	10.00 pCi/L	2

Mower County Radon Profile

Because of its underlying geology, Mower County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 2 cities in Mower County average 5.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Mower County home regardless of zone or a neighbor's results.

Radon FAQ for Dexter, MN

What EPA Radon Zone is Dexter in?

Dexter and the 55926 zip code are in Mower 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 Dexter?

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

Radon mitigation in Dexter 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 Dexter?

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.