Big Stone City, SD Radon Levels

Q: What EPA Radon Zone is Big Stone City in?

Big Stone City is in Grant County, EPA Zone 1.

Q: How much does radon mitigation cost in Big Stone City?

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

Check local Big Stone City radon levels and find certified testing and mitigation professionals to keep your home safe

Big Stone City, SD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Grant County, SD

Zip Code 57216

Positioned along the Minnesota border in Grant County, Big Stone City lies within the glacial lake plains of ancient Lake Agassiz. The 57216 area has limited radon testing data, but the deep glacial sediments over Precambrian granite typically associated with EPA Zone 1 classification suggest elevated radon potential. Residents should test their homes, particularly those with full basements common in this region's older housing stock.

Big Stone City, SD Radon Mitigation

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

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Radon FAQ for Big Stone City, SD

What EPA Radon Zone is Big Stone City in?

Big Stone City and the 57216 zip code are in Grant 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 Big Stone City?

Radon mitigation in Big Stone City 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 Big Stone City?

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 in South Dakota with the most user-submitted radon test data, ranked by number of submissions.

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