Hill City, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Hill City in?

Hill City is in Pennington County, EPA Zone 2.

Q: How much does radon mitigation cost in Hill City?

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

Pennington County

EPA Zone 2

Located in Pennington County within the Rapid City Metro area, Hill City rests near the Black Hills where metamorphic bedrock and granite formations can influence radon levels. The community's mix of older mountain homes and newer developments in zip code 57745 may show varying radon potential. Testing data remains limited, making individual home testing particularly important for residents.

Hill City, SD Radon Mitigation

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

Hill City, SD Radon Testing

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

Hill City Radon Facts

Key details about the radon risk profile for Hill City and the 57745 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Pennington County, SD

Zip Code

57745

Predicted Screening Level

2–4 pCi/L (Zone 2)

Hill City and the 57745 zip code are located in Pennington 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 Hill City, SD

What EPA Radon Zone is Hill City in?

Hill City and the 57745 zip code are in Pennington 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 Hill City?

Radon mitigation in Hill City 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 Hill City?

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