Gilby, ND Radon Levels

Q: What EPA Radon Zone is Gilby in?

Gilby is in Grand Forks County, EPA Zone 1.

Q: How much does radon mitigation cost in Gilby?

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

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

Gilby, ND Radon Facts

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

County Grand Forks County, ND

Zip Code 58235

Located in Grand Forks County across North Dakota's Red River valley, Gilby sits on glacial lake deposits that can influence radon gas migration patterns. Testing data remains limited for zip code 58235, making individual home assessment important despite the area's typically lower radon potential. The region's clay-rich soils and predominantly basement construction create conditions where radon can still accumulate in enclosed below-grade spaces.

Gilby, 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 Gilby, ND

What EPA Radon Zone is Gilby in?

Gilby and the 58235 zip code are in Grand Forks 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 Gilby?

Radon mitigation in Gilby 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 Gilby?

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