Salem, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Salem in?

Salem is in McCook County, EPA Zone 1.

Q: How much does radon mitigation cost in Salem?

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

McCook County

EPA Zone 1

Part of the greater Sioux Falls metropolitan area in McCook County, Salem sits on glacial prairie soils that can vary in radon potential across the landscape. Current testing data for this zip code 57058 community remains limited, making professional radon assessment particularly valuable for homeowners. The region's mix of agricultural soils over buried bedrock creates conditions where individual properties may show surprising variation in radon levels.

Salem, SD Radon Mitigation

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

Salem, SD Radon Testing

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

Salem Radon Facts

Key details about the radon risk profile for Salem and the 57058 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McCook County, SD

Zip Code

57058

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Salem and the 57058 zip code are located in McCook 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 Salem, SD

What EPA Radon Zone is Salem in?

Salem and the 57058 zip code are in McCook 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 Salem?

Radon mitigation in Salem 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 Salem?

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