Worthing, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Worthing in?

Worthing is in Lincoln County, EPA Zone 1.

Q: How much does radon mitigation cost in Worthing?

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

Lincoln County

EPA Zone 1

Nestled in Lincoln County within the Sioux Falls metropolitan area, Worthing sits atop glacial drift deposits that create favorable conditions for radon accumulation. Testing data for this ZIP 57077 community remains limited, making professional radon testing essential for homeowners. The region's typical residential construction, featuring full basements in clay-rich soils, can provide pathways for radon entry from underlying bedrock.

Worthing, SD Radon Mitigation

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

Worthing, SD Radon Testing

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

Worthing Radon Facts

Key details about the radon risk profile for Worthing and the 57077 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lincoln County, SD

Zip Code

57077

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Worthing and the 57077 zip code are located in Lincoln 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 Worthing, SD

What EPA Radon Zone is Worthing in?

Worthing and the 57077 zip code are in Lincoln 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 Worthing?

Radon mitigation in Worthing 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 Worthing?

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