Radon zones in North Dakota
Zone 1: 53, Zone 2: 0, Zone 3: 0. A zone is an area estimate; EPA says all homes should be tested.
- Adams County Zone 1
- Barnes County Zone 1
- Benson County Zone 1
- Billings County Zone 1
- Bottineau County Zone 1
- Bowman County Zone 1
- Burke County Zone 1
- Burleigh County Zone 1
- Cass County Zone 1
- Cavalier County Zone 1
- Dickey County Zone 1
- Divide County Zone 1
- Dunn County Zone 1
- Eddy County Zone 1
- Emmons County Zone 1
- Foster County Zone 1
- Golden Valley County Zone 1
- Grand Forks County Zone 1
- Grant County Zone 1
- Griggs County Zone 1
- Hettinger County Zone 1
- Kidder County Zone 1
- LaMoure County Zone 1
- Logan County Zone 1
- McHenry County Zone 1
- McIntosh County Zone 1
- McKenzie County Zone 1
- McLean County Zone 1
- Mercer County Zone 1
- Morton County Zone 1
- Mountrail County Zone 1
- Nelson County Zone 1
- Oliver County Zone 1
- Pembina County Zone 1
- Pierce County Zone 1
- Ramsey County Zone 1
- Ransom County Zone 1
- Renville County Zone 1
- Richland County Zone 1
- Rolette County Zone 1
- Sargent County Zone 1
- Sheridan County Zone 1
- Sioux County Zone 1
- Slope County Zone 1
- Stark County Zone 1
- Steele County Zone 1
- Stutsman County Zone 1
- Towner County Zone 1
- Traill County Zone 1
- Walsh County Zone 1
- Ward County Zone 1
- Wells County Zone 1
- Williams County Zone 1
County not listed? See what we left out and why. Leave your email to hear if this data changes.