EPA Zone Data 2026
MN Radon Levels
View EPA radon zone classifications for every county in MN. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.
68
Zone 1
High Risk
High Risk
19
Zone 2
Moderate
Moderate
0
Zone 3
Low Risk
Low Risk
Aitkin
Zone 2
Anoka
Zone 2
Becker
Zone 1
Beltrami
Zone 2
Benton
Zone 2
Big Stone
Zone 1
Blue Earth
Zone 1
Brown
Zone 1
Carlton
Zone 2
Carver
Zone 1
Cass
Zone 2
Chippewa
Zone 1
Chisago
Zone 2
Clay
Zone 1
Clearwater
Zone 2
Cook
Zone 2
Cottonwood
Zone 1
Crow Wing
Zone 2
Dakota
Zone 1
Dodge
Zone 1
Douglas
Zone 1
Faribault
Zone 1
Fillmore
Zone 1
Freeborn
Zone 1
Goodhue
Zone 1
Grant
Zone 1
Hennepin
Zone 1
Houston
Zone 1
Hubbard
Zone 1
Isanti
Zone 2
Itasca
Zone 2
Jackson
Zone 1
Kanabec
Zone 1
Kandiyohi
Zone 1
Kittson
Zone 1
Koochiching
Zone 2
Lac qui Parle
Zone 1
Lake
Zone 2
Lake of the Woods
Zone 2
Le Sueur
Zone 1
Lincoln
Zone 1
Lyon
Zone 1
Mahnomen
Zone 1
Marshall
Zone 1
Martin
Zone 1
McLeod
Zone 1
Meeker
Zone 1
Mille Lacs
Zone 2
Morrison
Zone 2
Mower
Zone 1
Murray
Zone 1
Nicollet
Zone 1
Nobles
Zone 1
Norman
Zone 1
Olmsted
Zone 1
Otter Tail
Zone 1
Pennington
Zone 1
Pine
Zone 2
Pipestone
Zone 1
Polk
Zone 1
Pope
Zone 1
Ramsey
Zone 1
Red Lake
Zone 1
Redwood
Zone 1
Renville
Zone 1
Rice
Zone 1
Rock
Zone 1
Roseau
Zone 1
Scott
Zone 1
Sherburne
Zone 1
Sibley
Zone 1
St. Louis
Zone 2
Stearns
Zone 1
Steele
Zone 1
Stevens
Zone 1
Swift
Zone 1
Todd
Zone 1
Traverse
Zone 1
Wabasha
Zone 1
Wadena
Zone 1
Waseca
Zone 1
Washington
Zone 1
Watonwan
Zone 1
Wilkin
Zone 1
Winona
Zone 1
Wright
Zone 1
Yellow Medicine
Zone 1
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