Saint Francis, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Francis in?

Saint Francis is in Todd County, EPA Zone 2.

Q: How much does radon mitigation cost in Saint Francis?

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

Todd County

EPA Zone 2

Located in south-central South Dakota's Todd County, Saint Francis sits within the Missouri River region where Pierre Shale and glacial deposits contribute to moderate radon potential. Current testing data for zip code 57572 is insufficient for area-wide evaluation, emphasizing the need for property-specific radon assessment. Rural homes and tribal housing in this area should undergo professional testing to establish baseline radon levels.

Saint Francis, SD Radon Mitigation

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

Saint Francis, SD Radon Testing

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

Saint Francis Radon Facts

Key details about the radon risk profile for Saint Francis and the 57572 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Todd County, SD

Zip Code

57572

Predicted Screening Level

2–4 pCi/L (Zone 2)

Saint Francis and the 57572 zip code are located in Todd 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 Saint Francis, SD

What EPA Radon Zone is Saint Francis in?

Saint Francis and the 57572 zip code are in Todd 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 Saint Francis?

Radon mitigation in Saint Francis 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 Saint Francis?

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