Buffalo, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Buffalo in?

Buffalo is in Harding County, EPA Zone 2.

Q: How much does radon mitigation cost in Buffalo?

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

Harding County

EPA Zone 2

Buffalo sits in remote Harding County near South Dakota's northwestern corner, where sedimentary rock formations of the Great Plains create variable radon conditions. The sparse rural housing stock includes older ranch homes and farmsteads with diverse foundation types. Given the absence of local testing data for this area, residents should prioritize radon testing to establish their homes' individual risk profiles.

Buffalo, SD Radon Mitigation

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

Buffalo, SD Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Buffalo Radon Facts

Key details about the radon risk profile for Buffalo and the 57720 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Harding County, SD

Zip Code

57720

Predicted Screening Level

2–4 pCi/L (Zone 2)

Buffalo and the 57720 zip code are located in Harding County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Buffalo, SD

What EPA Radon Zone is Buffalo in?

Buffalo and the 57720 zip code are in Harding County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Buffalo?

Radon mitigation in Buffalo 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 Buffalo?

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 with the most user-submitted radon test data in the state.

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