Princeton, MN Radon Levels

Q: What EPA Radon Zone is Princeton in?

Princeton is in Mille Lacs County, EPA Zone 2.

Q: How much does radon mitigation cost in Princeton?

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

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

Princeton, MN Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Mille Lacs County, MN

Zip Code 55371

Located in Mille Lacs County within the Minneapolis-St. Paul Metro area, Princeton's radon conditions reflect Minnesota's complex glacial geology. While specific testing data for zip code 55371 is currently limited, the region's glacial deposits over granite bedrock can create variable radon conditions. Homeowners should prioritize testing to determine their individual exposure levels.

12.00

pCi/L area average

Above EPA Action Level

Mille Lacs County average: 12.00 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Princeton 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+

Princeton, 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 Princeton, MN

No homeowner tests have been submitted for Princeton 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
Milaca	13.6 mi	4.00 pCi/L	1
Big Lake	17.6 mi	7.00 pCi/L	1
Monticello	22.4 mi	10.00 pCi/L	1
Anoka	22.6 mi	5.00 pCi/L	1
Mora	25.9 mi	6.00 pCi/L	2
Harris	26.9 mi	4.00 pCi/L	1
Champlin	30.5 mi	5.00 pCi/L	2
Buffalo	30.8 mi	11.00 pCi/L	1

Mille Lacs County Radon Profile

Mille Lacs County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 2 cities in Mille Lacs County average 12.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Mille Lacs County.

Radon FAQ for Princeton, MN

What EPA Radon Zone is Princeton in?

Princeton and the 55371 zip code are in Mille Lacs County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Princeton?

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

Radon mitigation in Princeton 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 Princeton?

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.