Stratford, SD Radon Levels

Q: What EPA Radon Zone is Stratford in?

Stratford is in Brown County, EPA Zone 1.

Q: How much does radon mitigation cost in Stratford?

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

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

Stratford, SD Radon Facts

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

County Brown County, SD

Zip Code 57474

Situated in Brown County across South Dakota's glaciated prairie, Stratford lies within EPA Zone 1 territory where thick glacial deposits can harbor uranium-bearing materials. The region's geological composition of glacial till over Pierre Shale creates conditions favorable for radon production and migration. Testing data for zip code 57474 remains limited, making individual home testing essential for this rural community.

Stratford, SD Radon Mitigation

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

Need Radon Mitigation or Testing in Stratford?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Brown County Pros

1-800-299-3578 Toll-free · Mon–Fri 8am–6pm ET

Radon FAQ for Stratford, SD

What EPA Radon Zone is Stratford in?

Stratford and the 57474 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 Stratford?

Radon mitigation in Stratford 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 Stratford?

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