Magnolia, MN Radon Levels

Q: What EPA Radon Zone is Magnolia in?

Magnolia is in Rock County, EPA Zone 1.

Q: How much does radon mitigation cost in Magnolia?

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

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

Magnolia, MN Radon Facts

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

County Rock County, MN

Zip Code 56158

Positioned in Rock County in Minnesota's far southwestern corner within the greater Sioux Falls Metro area, Magnolia sits on Sioux quartzite bedrock overlain by glacial deposits. This unique geological combination, along with the area's predominantly agricultural housing stock featuring older farmhouses and newer rural homes, creates variable radon potential. With testing data limited for zip code 56158, residents should conduct individual home measurements.

8.50

pCi/L area average

Above EPA Action Level

Rock County average: 8.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Magnolia 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+

Magnolia, 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 Magnolia, MN

No homeowner tests have been submitted for Magnolia 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
Luverne	7.3 mi	12.00 pCi/L	1
Jasper	21.3 mi	5.00 pCi/L	1

Rock County Radon Profile

Rock County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 2 cities in Rock County average 8.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Rock County to test, as levels can differ between neighboring homes.

Radon FAQ for Magnolia, MN

What EPA Radon Zone is Magnolia in?

Magnolia and the 56158 zip code are in Rock 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 Magnolia?

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

Radon mitigation in Magnolia 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 Magnolia?

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.