Napoleon, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Napoleon in?

Napoleon is in Logan County, EPA Zone 1.

Q: How much does radon mitigation cost in Napoleon?

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

Logan County

EPA Zone 1

Situated in south-central North Dakota's Logan County, Napoleon sits on glacial till deposits left by ancient ice sheets across the northern Great Plains. The area's mix of older farmsteads and newer residential construction creates varying foundation types and radon entry potential. Since local testing data is limited, homeowners should conduct professional radon testing to establish safe indoor air quality baselines.

Napoleon, ND Radon Mitigation

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

Napoleon, ND Radon Testing

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

Napoleon Radon Facts

Key details about the radon risk profile for Napoleon and the 58561 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Logan County, ND

Zip Code

58561

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Napoleon and the 58561 zip code are located in Logan 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 Napoleon, ND

What EPA Radon Zone is Napoleon in?

Napoleon and the 58561 zip code are in Logan 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 Napoleon?

Radon mitigation in Napoleon 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 Napoleon?

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