Selfridge, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Selfridge in?

Selfridge is in Sioux County, EPA Zone 1.

Q: How much does radon mitigation cost in Selfridge?

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

Sioux County

EPA Zone 1

Positioned in Sioux County along North Dakota's southwestern border, Selfridge lies within an EPA Zone 1 high-risk area where Fort Union Formation bedrock contributes to elevated radon potential. Current testing data for the 58568 zip code is limited, underscoring the importance of individual home testing. Rural properties in this region often feature a mix of basement and crawl space foundations.

Selfridge, ND Radon Mitigation

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

Selfridge, ND Radon Testing

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

Selfridge Radon Facts

Key details about the radon risk profile for Selfridge and the 58568 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Sioux County, ND

Zip Code

58568

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Selfridge and the 58568 zip code are located in Sioux 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 Selfridge, ND

What EPA Radon Zone is Selfridge in?

Selfridge and the 58568 zip code are in Sioux 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 Selfridge?

Radon mitigation in Selfridge 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 Selfridge?

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