EPA Zone Data 2026
ND Radon Levels
View EPA radon zone classifications for every county in ND. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.
53
Zone 1
High Risk
High Risk
0
Zone 2
Moderate
Moderate
0
Zone 3
Low Risk
Low Risk
Adams
Zone 1
Barnes
Zone 1
Benson
Zone 1
Billings
Zone 1
Bottineau
Zone 1
Bowman
Zone 1
Burke
Zone 1
Burleigh
Zone 1
Cass
Zone 1
Cavalier
Zone 1
Dickey
Zone 1
Divide
Zone 1
Dunn
Zone 1
Eddy
Zone 1
Emmons
Zone 1
Foster
Zone 1
Golden Valley
Zone 1
Grand Forks
Zone 1
Grant
Zone 1
Griggs
Zone 1
Hettinger
Zone 1
Kidder
Zone 1
LaMoure
Zone 1
Logan
Zone 1
McHenry
Zone 1
McIntosh
Zone 1
McKenzie
Zone 1
McLean
Zone 1
Mercer
Zone 1
Morton
Zone 1
Mountrail
Zone 1
Nelson
Zone 1
Oliver
Zone 1
Pembina
Zone 1
Pierce
Zone 1
Ramsey
Zone 1
Ransom
Zone 1
Renville
Zone 1
Richland
Zone 1
Rolette
Zone 1
Sargent
Zone 1
Sheridan
Zone 1
Sioux
Zone 1
Slope
Zone 1
Stark
Zone 1
Steele
Zone 1
Stutsman
Zone 1
Towner
Zone 1
Traill
Zone 1
Walsh
Zone 1
Ward
Zone 1
Wells
Zone 1
Williams
Zone 1
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