North Branch, MN Radon Levels

Q: What EPA Radon Zone is North Branch in?

North Branch is in Chisago County, EPA Zone 2.

Q: How much does radon mitigation cost in North Branch?

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

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

North Branch, MN Radon Facts

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

County Chisago County, MN

Zip Code 55056

Found in Chisago County within the Minneapolis-St. Paul Metro area, North Branch rests on glacial deposits typical of east-central Minnesota's landscape. Testing data remains sparse for zip code 55056, making radon assessment important for local residents. The community's mix of lake country homes and newer suburban construction presents diverse foundation scenarios for potential radon accumulation.

4.50

pCi/L area average

Above EPA Action Level

Chisago 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 North Branch 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+

North Branch, 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 North Branch, MN

No homeowner tests have been submitted for North Branch 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
Harris	6.5 mi	4.00 pCi/L	1
Rush City	12.1 mi	5.00 pCi/L	1
Forest Lake	16.8 mi	4.00 pCi/L	1
Anoka	26.5 mi	5.00 pCi/L	1
Mora	30.6 mi	6.00 pCi/L	2
Champlin	30.6 mi	5.00 pCi/L	2
Lake Elmo	35.9 mi	4.00 pCi/L	1
Milaca	37.1 mi	4.00 pCi/L	1

Chisago County Radon Profile

Chisago 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 Chisago 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. 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 Chisago County.

Radon FAQ for North Branch, MN

What EPA Radon Zone is North Branch in?

North Branch and the 55056 zip code are in Chisago 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 North Branch?

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

Radon mitigation in North Branch 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 North Branch?

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.