Mount Vernon, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Mount Vernon in?

Mount Vernon is in Davison County, EPA Zone 1.

Q: How much does radon mitigation cost in Mount Vernon?

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

Davison County

EPA Zone 1

Prairie community Mount Vernon in Davison County lies within South Dakota's EPA Zone 1 high radon potential area, where glacial deposits over Pierre Shale create favorable conditions for radon gas migration. While specific testing data for zip code 57363 is currently limited, the geology strongly suggests elevated radon risk. Homeowners should test their properties, particularly older farmhouses and newer homes with full basements common to this agricultural region.

Mount Vernon, SD Radon Mitigation

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

Mount Vernon, SD Radon Testing

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

Mount Vernon Radon Facts

Key details about the radon risk profile for Mount Vernon and the 57363 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Davison County, SD

Zip Code

57363

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mount Vernon and the 57363 zip code are located in Davison 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 Mount Vernon, SD

What EPA Radon Zone is Mount Vernon in?

Mount Vernon and the 57363 zip code are in Davison 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 Mount Vernon?

Radon mitigation in Mount Vernon 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 Mount Vernon?

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