Norwalk, WI Radon Mitigation and Testing

Q: What EPA Radon Zone is Norwalk in?

Norwalk is in Monroe County, EPA Zone 2.

Q: How much does radon mitigation cost in Norwalk?

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

Monroe County

EPA Zone 2

Located in Monroe County in west-central Wisconsin, Norwalk sits in an area where glacial deposits over limestone bedrock create variable radon conditions. While specific radon testing data for the 54648 zip code area is limited, homeowners are encouraged to test their properties. Given the geological context and housing stock typical of rural Wisconsin communities, radon levels can vary significantly from home to home.

Norwalk, WI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Norwalk, WI Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Norwalk Radon Facts

Key details about the radon risk profile for Norwalk and the 54648 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Monroe County, WI

Zip Code

54648

Predicted Screening Level

2–4 pCi/L (Zone 2)

Norwalk and the 54648 zip code are located in Monroe County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Norwalk, WI

What EPA Radon Zone is Norwalk in?

Norwalk and the 54648 zip code are in Monroe 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.

How much does radon mitigation cost in Norwalk?

Radon mitigation in Norwalk 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 Norwalk?

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.

Most Active Radon Markets in Wisconsin

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Milwaukee	10.00 pCi/L	3
Prairie Du Chien	10.00 pCi/L	2
Stevens Point	5.50 pCi/L	2
Menomonie	10.00 pCi/L	1
Delavan	6.00 pCi/L	1
Shawano	No submissions	0
Sturgeon Bay	No submissions	0