Rockham, SD Radon Levels

Q: What EPA Radon Zone is Rockham in?

Rockham is in Faulk County, EPA Zone 1.

Q: How much does radon mitigation cost in Rockham?

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

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

Rockham, SD Radon Facts

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

County Faulk County, SD

Zip Code 57470

Located in rural Faulk County in central South Dakota, Rockham sits on glacial drift over Pierre shale formations that contribute to the state's elevated radon potential. The sparse community features primarily older farmstead construction with varied foundation types throughout zip code 57470. Given South Dakota's EPA Zone 1 status and limited current testing data, homeowners should prioritize radon testing to understand their specific exposure levels.

Rockham, 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 Rockham, SD

What EPA Radon Zone is Rockham in?

Rockham and the 57470 zip code are in Faulk 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 Rockham?

Radon mitigation in Rockham 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 Rockham?

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