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