Mandan, ND Radon Levels

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.

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

Mandan, ND Radon Facts

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

County Morton County, ND

Zip Code 58554

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.

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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 in North Dakota with the most user-submitted radon test data, ranked by number of submissions.

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