Freeport, MN Radon Levels

Q: What EPA Radon Zone is Freeport in?

Freeport is in Stearns County, EPA Zone 1.

Q: How much does radon mitigation cost in Freeport?

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

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

Freeport, MN Radon Facts

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

County Stearns County, MN

Zip Code 56331

Part of the St. Cloud metro area in Stearns County, Freeport is situated on glacial deposits over Precambrian and Paleozoic bedrock formations common throughout central Minnesota. While radon testing data for zip code 56331 is currently limited, Minnesota's EPA Zone 1 designation reflects the state's potential for elevated indoor radon concentrations. Professional testing is strongly recommended for all Freeport homes, particularly those with basements or lower-level living spaces.

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 Freeport 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+

Freeport, 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 Freeport, MN

No homeowner tests have been submitted for Freeport 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
Holdingford	11.2 mi	5.00 pCi/L	1
Cold Spring	19.3 mi	4.00 pCi/L	1
Watkins	27.9 mi	5.00 pCi/L	1
Willmar	41.1 mi	14.00 pCi/L	1
Motley	42.8 mi	7.00 pCi/L	1
Monticello	49.8 mi	10.00 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 Freeport, MN

What EPA Radon Zone is Freeport in?

Freeport and the 56331 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 Freeport?

No homeowner radon tests have been submitted for Freeport 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 Freeport 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 Freeport?

Radon mitigation in Freeport 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 Freeport?

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.