Carthage, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Carthage in?

Carthage is in Miner County, EPA Zone 1.

Q: How much does radon mitigation cost in Carthage?

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

Miner County

EPA Zone 1

Situated in Miner County on the South Dakota prairie, Carthage lies in an EPA Zone 1 high-risk area where glacial deposits over underlying bedrock create favorable conditions for radon production. Limited testing data means homeowners in the 57323 area should prioritize radon testing, particularly in homes with basements typical of Great Plains construction. The community's agricultural setting and older housing stock warrant careful attention to radon levels.

Carthage, SD Radon Mitigation

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

Carthage, SD Radon Testing

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

Carthage Radon Facts

Key details about the radon risk profile for Carthage and the 57323 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Miner County, SD

Zip Code

57323

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Carthage and the 57323 zip code are located in Miner 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 Carthage, SD

What EPA Radon Zone is Carthage in?

Carthage and the 57323 zip code are in Miner 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 Carthage?

Radon mitigation in Carthage 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 Carthage?

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