Erwin, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Erwin in?

Erwin is in Kingsbury County, EPA Zone 1.

Q: How much does radon mitigation cost in Erwin?

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

Kingsbury County

EPA Zone 1

Located in Kingsbury County within South Dakota's prairie region, Erwin sits on glacial drift deposits over sedimentary bedrock formations that can contribute to radon production. The area's predominantly agricultural landscape features scattered farmsteads and rural homes, many with basements built into the fertile glacial soils. Testing data for the 57233 area remains unavailable, making professional radon assessment important for residents seeking to understand their property's specific risk profile.

Erwin, SD Radon Mitigation

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

Erwin, SD Radon Testing

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

Erwin Radon Facts

Key details about the radon risk profile for Erwin and the 57233 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Kingsbury County, SD

Zip Code

57233

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Erwin and the 57233 zip code are located in Kingsbury 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 Erwin, SD

What EPA Radon Zone is Erwin in?

Erwin and the 57233 zip code are in Kingsbury 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 Erwin?

Radon mitigation in Erwin 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 Erwin?

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