Casco, WI Radon Mitigation and Testing

Q: What EPA Radon Zone is Casco in?

Casco is in Kewaunee County, EPA Zone 2.

Q: How much does radon mitigation cost in Casco?

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

Kewaunee County

EPA Zone 2

Situated in Kewaunee County within the Green Bay Metro area, Casco sits atop dolomite bedrock and glacial till deposits that can produce moderate radon concentrations. The community's agricultural character includes farmsteads and rural homes, many with basement foundations that readily trap radon gas from underlying soils. Given Wisconsin's variable radon levels and sparse testing data for this area, residents should prioritize professional radon testing.

Casco, WI Radon Mitigation

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

Casco, WI Radon Testing

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

Casco Radon Facts

Key details about the radon risk profile for Casco and the 54205 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Kewaunee County, WI

Zip Code

54205

Predicted Screening Level

2–4 pCi/L (Zone 2)

Casco and the 54205 zip code are located in Kewaunee 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 Casco, WI

What EPA Radon Zone is Casco in?

Casco and the 54205 zip code are in Kewaunee 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 Casco?

Radon mitigation in Casco 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 Casco?

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