West Fargo, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is West Fargo in?

West Fargo is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in West Fargo?

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

Cass County

EPA Zone 1

Part of the Fargo Metro area in Cass County, West Fargo sits in North Dakota's EPA Zone 1 where glacial lake deposits and underlying bedrock create high radon potential. Testing data for the 58078 community remains limited despite the region's documented radon risk across the Red River Valley. The city's rapid suburban growth and typical basement construction in newer developments make professional radon testing particularly important for residents.

West Fargo, ND Radon Mitigation

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

West Fargo, ND Radon Testing

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

West Fargo Radon Facts

Key details about the radon risk profile for West Fargo and the 58078 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cass County, ND

Zip Code

58078

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

West Fargo and the 58078 zip code are located in Cass 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 West Fargo, ND

What EPA Radon Zone is West Fargo in?

West Fargo and the 58078 zip code are in Cass 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 West Fargo?

Radon mitigation in West Fargo 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 West Fargo?

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