Winner, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Winner in?

Winner is in Tripp County, EPA Zone 2.

Q: How much does radon mitigation cost in Winner?

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

Tripp County

EPA Zone 2

Located in Tripp County on South Dakota's prairie, Winner sits atop Pierre Shale and glacial till deposits that characterize the region's geology. Radon testing data is currently unavailable for zip code 57580, making individual home testing important for local residents. The Great Plains' variable geological conditions, combined with the area's mix of older homes and newer construction, create unpredictable radon potential that warrants professional assessment.

Winner, SD Radon Mitigation

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

Winner, SD Radon Testing

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

Winner Radon Facts

Key details about the radon risk profile for Winner and the 57580 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Tripp County, SD

Zip Code

57580

Predicted Screening Level

2–4 pCi/L (Zone 2)

Winner and the 57580 zip code are located in Tripp 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 Winner, SD

What EPA Radon Zone is Winner in?

Winner and the 57580 zip code are in Tripp 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 Winner?

Radon mitigation in Winner 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 Winner?

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