Hosmer, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Hosmer in?

Hosmer is in Edmunds County, EPA Zone 1.

Q: How much does radon mitigation cost in Hosmer?

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

Edmunds County

EPA Zone 1

Small-town Hosmer sits in Edmunds County within South Dakota's glacial prairie region, where Pleistocene till deposits can facilitate radon gas migration. Located in EPA Zone 1 with high radon potential, the 57448 community currently lacks comprehensive testing data, making individual home testing essential. The area's agricultural heritage includes many older farmsteads with partial basements alongside newer rural residential construction.

Hosmer, SD Radon Mitigation

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

Hosmer, SD Radon Testing

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

Hosmer Radon Facts

Key details about the radon risk profile for Hosmer and the 57448 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Edmunds County, SD

Zip Code

57448

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Hosmer and the 57448 zip code are located in Edmunds 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 Hosmer, SD

What EPA Radon Zone is Hosmer in?

Hosmer and the 57448 zip code are in Edmunds 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 Hosmer?

Radon mitigation in Hosmer 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 Hosmer?

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