Winfred, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Winfred in?

Winfred is in Lake County, EPA Zone 1.

Q: How much does radon mitigation cost in Winfred?

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

Lake County

EPA Zone 1

Rural Lake County community Winfred sits in southeastern South Dakota's prairie region, where glacial deposits over limestone bedrock create elevated radon potential statewide. Testing data for zip code 57076 is currently unavailable, though South Dakota's high radon prevalence makes testing particularly important. Local farming properties and residential homes should prioritize radon measurements to ensure safe indoor air quality.

Winfred, SD Radon Mitigation

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

Winfred, SD Radon Testing

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

Winfred Radon Facts

Key details about the radon risk profile for Winfred and the 57076 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lake County, SD

Zip Code

57076

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Winfred and the 57076 zip code are located in Lake County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Winfred, SD

What EPA Radon Zone is Winfred in?

Winfred and the 57076 zip code are in Lake 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.

How much does radon mitigation cost in Winfred?

Radon mitigation in Winfred 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 Winfred?

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 South Dakota

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

City	Avg User Radon Level	Submissions
Spearfish	7.75 pCi/L	4
Rapid City	10.50 pCi/L	2
Aberdeen	8.50 pCi/L	2
Sioux Falls	6.00 pCi/L	2
Watertown	6.00 pCi/L	2