Walnut Grove, MN Radon Levels

Q: What EPA Radon Zone is Walnut Grove in?

Walnut Grove is in Redwood County, EPA Zone 1.

Q: How much does radon mitigation cost in Walnut Grove?

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

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

Walnut Grove, MN Radon Facts

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

County Redwood County, MN

Zip Code 56180

Located in Redwood County in southwestern Minnesota (ZIP 56180), Walnut Grove sits atop glacial till deposits over Precambrian bedrock characteristic of the region. Although comprehensive radon testing data is not yet available for this small community, Minnesota's geological conditions often produce elevated radon levels. The combination of glacial deposits and crystalline bedrock found throughout Redwood County creates conditions that warrant homeowner attention to radon testing.

12.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 12.00 pCi/L, based on 1 test from 1 nearby city. No readings have been submitted for Walnut Grove 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+

Walnut Grove, 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 Walnut Grove, MN

No homeowner tests have been submitted for Walnut Grove 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
Sleepy Eye	38.2 mi	12.00 pCi/L	1

Redwood County Radon Profile

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

Radon FAQ for Walnut Grove, MN

What EPA Radon Zone is Walnut Grove in?

Walnut Grove and the 56180 zip code are in Redwood 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 Walnut Grove?

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

Radon mitigation in Walnut Grove 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 Walnut Grove?

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.