Groton, SD Radon Levels

Q: What EPA Radon Zone is Groton in?

Groton is in Brown County, EPA Zone 1.

Q: How much does radon mitigation cost in Groton?

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

Check local Groton radon levels and find certified testing and mitigation professionals to keep your home safe

Groton, SD Radon Facts

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

County Brown County, SD

Zip Code 57445

Groton is positioned in Brown County in northeastern South Dakota, where glacial deposits and underlying sedimentary formations can create conditions that elevate radon concentrations in area homes. The small community's housing stock reflects typical rural South Dakota construction patterns with many homes featuring full basements. With radon testing data for the 57445 zip code currently unavailable, residents are encouraged to conduct professional testing to establish accurate radon measurements for their properties.

Groton, 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 Groton, SD

What EPA Radon Zone is Groton in?

Groton and the 57445 zip code are in Brown 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 Groton?

Radon mitigation in Groton 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 Groton?

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