Oldham, SD Radon Levels

Q: What EPA Radon Zone is Oldham in?

Oldham is in Kingsbury County, EPA Zone 1.

Q: How much does radon mitigation cost in Oldham?

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

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

Oldham, SD Radon Facts

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

County Kingsbury County, SD

Zip Code 57051

Positioned in east-central Kingsbury County on the South Dakota prairie, Oldham's geology features glacial drift over Pierre Shale formations that can influence radon levels in local homes. Current testing data for this 57051 zip code area remains limited, emphasizing the importance of individual home testing. Rural homeowners should test their properties, as the combination of older farmstead construction and varying soil conditions can create unpredictable radon accumulation patterns.

Oldham, 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 Oldham, SD

What EPA Radon Zone is Oldham in?

Oldham and the 57051 zip code are in Kingsbury 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 Oldham?

Radon mitigation in Oldham 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 Oldham?

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