Spring Grove, MN Radon Levels

Q: What EPA Radon Zone is Spring Grove in?

Spring Grove is in Houston County, EPA Zone 1.

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

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

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

Spring Grove, MN Radon Facts

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

County Houston County, MN

Zip Code 55974

Located in Houston County within both the La Crosse and Rochester Metro areas, Spring Grove sits in southeastern Minnesota's bluff country where limestone bedrock can influence radon levels. The community's traditional small-town housing and rural residential character reflect typical Minnesota patterns with full basement construction. Since radon testing data isn't currently available for zip code 55974, residents should conduct home testing given Minnesota's variable radon conditions across different geological zones.

7.50

pCi/L area average

Above EPA Action Level

Houston County average: 7.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Spring Grove 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+

Spring 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 Spring Grove, MN

No homeowner tests have been submitted for Spring 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
La Crescent	24.2 mi	7.50 pCi/L	2
Winona	32.5 mi	10.00 pCi/L	1
Minnesota City	36.4 mi	7.00 pCi/L	1
Le Roy	43.6 mi	8.00 pCi/L	1

Houston County Radon Profile

Because of its underlying geology, Houston 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 Houston County average 7.50 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 Houston County home regardless of zone or a neighbor's results.

Radon FAQ for Spring Grove, MN

What EPA Radon Zone is Spring Grove in?

Spring Grove and the 55974 zip code are in Houston 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 Spring Grove?

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

Radon mitigation in Spring 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 Spring 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.