Astoria, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Astoria in?

Astoria is in Deuel County, EPA Zone 1.

Q: How much does radon mitigation cost in Astoria?

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

Deuel County

EPA Zone 1

Small-town Astoria sits in rural Deuel County on the glacial prairie soils characteristic of eastern South Dakota's agricultural region. While radon testing data for zip code 57213 is currently limited, the underlying glacial deposits over bedrock formations common to this area suggest homeowners should test their properties to establish baseline radon readings.

Astoria, SD Radon Mitigation

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

Astoria, SD Radon Testing

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

Astoria Radon Facts

Key details about the radon risk profile for Astoria and the 57213 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Deuel County, SD

Zip Code

57213

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Astoria and the 57213 zip code are located in Deuel 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 Astoria, SD

What EPA Radon Zone is Astoria in?

Astoria and the 57213 zip code are in Deuel 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 Astoria?

Radon mitigation in Astoria 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 Astoria?

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