Mandan, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Mandan in?

Mandan is in Morton County, EPA Zone 1.

Q: How much does radon mitigation cost in Mandan?

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

Morton County

EPA Zone 1

Positioned along the Missouri River in Morton County, Mandan sits within North Dakota's glaciated plains region where Pierre Shale and other sedimentary formations can contribute to elevated radon levels. The community's housing includes both historic homes from the railroad era and modern suburban developments, many featuring full basements that can trap radon gas. Testing data for the 58554 zip code remains limited, making professional radon measurement essential for homeowners to understand their individual exposure risk.

Mandan, ND Radon Mitigation

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

Mandan, ND Radon Testing

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

Mandan Radon Facts

Key details about the radon risk profile for Mandan and the 58554 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Morton County, ND

Zip Code

58554

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mandan and the 58554 zip code are located in Morton County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Mandan, ND

What EPA Radon Zone is Mandan in?

Mandan and the 58554 zip code are in Morton 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 Mandan?

Radon mitigation in Mandan 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 Mandan?

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 North Dakota

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

City	Avg User Radon Level	Submissions
Grand Forks	13.50 pCi/L	8
Grafton	7.67 pCi/L	3
Dickinson	6.00 pCi/L	3
Watford City	5.50 pCi/L	2
Bismarck	No submissions	0