Larimore, ND Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 8.00 pCi/L.

Q: What EPA Radon Zone is Larimore in?

Larimore is in Grand Forks County, EPA Zone 1.

Q: How much does radon mitigation cost in Larimore?

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

Avg: 8.00 pCi/L

Grand Forks County

EPA Zone 1

1 user test

Larimore is located in Grand Forks County, North Dakota. With 1 user-submitted readings averaging 8.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 58251 zip code.

8.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Larimore, ND. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Larimore, ND Radon Mitigation

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

Larimore, ND Radon Testing

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

Larimore, North Dakota Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Larimore, ND	21-50 Years	No Basement/All Slab	Mar 2023

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

Larimore Radon Facts

Key details about the radon risk profile for Larimore and the 58251 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Grand Forks County, ND

Zip Code

58251

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

8.00 pCi/L

User Tests Submitted

Larimore and the 58251 zip code are located in Grand Forks 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 Larimore, ND

What is the average radon level in Larimore, ND?

Based on 1 user-submitted test, the average radon level in Larimore is 8.00 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 Larimore in?

Larimore and the 58251 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 Larimore?

Radon mitigation in Larimore 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 Larimore?

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