Saint Joseph, MN Radon Levels

Q: What EPA Radon Zone is Saint Joseph in?

Saint Joseph is in Stearns County, EPA Zone 1.

Q: How much does radon mitigation cost in Saint Joseph?

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

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

Saint Joseph, MN Radon Facts

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

County Stearns County, MN

Zip Code 56374

Found in Stearns County within the St. Cloud metropolitan area, Saint Joseph sits atop glacial till deposits that can create favorable conditions for radon accumulation. The community's housing includes both historic structures and newer developments, many featuring full basements common to central Minnesota construction. Without sufficient local testing data, residents are encouraged to conduct radon testing to understand their specific exposure risk.

4.50

pCi/L area average

Above EPA Action Level

Stearns County average: 4.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Saint Joseph 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+

Saint Joseph, 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 Saint Joseph, MN

No homeowner tests have been submitted for Saint Joseph 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
Cold Spring	9.3 mi	4.00 pCi/L	1
Holdingford	12.5 mi	5.00 pCi/L	1
Watkins	18.3 mi	5.00 pCi/L	1
Monticello	31.9 mi	10.00 pCi/L	1
Big Lake	32.5 mi	7.00 pCi/L	1
Buffalo	35.1 mi	11.00 pCi/L	1
Milaca	36.5 mi	4.00 pCi/L	1
Delano	45.0 mi	5.00 pCi/L	1

Stearns County Radon Profile

Because of its underlying geology, Stearns 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 Stearns County average 4.50 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 Stearns County home regardless of zone or a neighbor's results.

Radon FAQ for Saint Joseph, MN

What EPA Radon Zone is Saint Joseph in?

Saint Joseph and the 56374 zip code are in Stearns 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 Saint Joseph?

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

Radon mitigation in Saint Joseph 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 Saint Joseph?

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.