Grand Forks, ND Radon Levels

Q: What is the average radon level in Grand Forks, ND?

Based on 8 user-submitted tests, the average radon level is 13.50 pCi/L.

Q: What EPA Radon Zone is Grand Forks in?

Grand Forks is in Grand Forks County, EPA Zone 1.

Q: How much does radon mitigation cost in Grand Forks?

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

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

Grand Forks, ND Radon Facts

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

County Grand Forks County, ND

Zip Code 58201

Avg. User Level 13.50 pCi/L

User Tests 8

Situated in Grand Forks County along the Red River valley, Grand Forks shows an average radon level of 13.5 pCi/L across multiple zip codes, significantly exceeding the EPA action threshold of 4.0 pCi/L. The region's glacial lake deposits and clay-rich soils over limestone bedrock create conditions highly favorable for radon accumulation in homes with basements and crawl spaces.

13.50

pCi/L average

Above EPA Action Level

Based on 8 user-submitted radon tests for homes in Grand Forks, ND. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Grand Forks, ND Radon Mitigation

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Grand Forks, ND Radon Levels

User-submitted radon test readings from homes in the Grand Forks area.

Radon Level	City	Home Age	Foundation
20 pCi/L	Grand Forks, ND	0-20 Years	Full Basement
11 pCi/L	Grand Forks, ND	21-50 Years	Full Basement
12 pCi/L	Grand Forks, ND	—	—
8 pCi/L	Grand Forks, ND	51-99 Years	Full Basement
16 pCi/L	Grand Forks, ND	0-20 Years	Full Basement

Have a radon test result for Grand Forks? Submit your reading to help other homeowners.

Radon FAQ for Grand Forks, ND

What is the average radon level in Grand Forks, ND?

Based on 8 user-submitted tests, the average radon level in Grand Forks is 13.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Grand Forks in?

Grand Forks and the 58201 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 Grand Forks?

Radon mitigation in Grand Forks 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 Grand Forks?

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

Grand Forks, ND Radon Levels

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

Grand Forks, ND Radon Facts

Grand Forks, ND Radon Mitigation

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Grand Forks, ND Radon Levels

Radon FAQ for Grand Forks, ND

Most Active Radon Markets in North Dakota

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