Call For A Free Quote: 1-800-299-3578 (toll free)

Radon Levels, Testing and Mitigation in Minnesota

Minnesota has 87 counties, with 68 classified as EPA Zone 1 (highest risk). With an average radon level of 7.01 pCi/L, Minnesota state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.

Minnesota is the 12th most expansive state in terms of size and the 21st most populous. Interestingly enough, nearly 60% of the state’s residents live in a single area known as the “twin cities,” which is actually the Minneapolis - St Paul metropolitan area.

Minnesota does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.

7.01
Avg. pCi/L
87
Counties
68
Zone 1 Counties

Minnesota Radon Map

Minnesota radon levels by county
Zone 1 — High
Zone 2 — Moderate
Zone 3 — Low

Minnesota Metro Areas

Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.

Duluth Metro
5 cities
Fargo Metro
5 cities
La Crosse Metro
5 cities
Minneapolis-St. Paul Metro
5 cities
Rochester Metro
5 cities
Sioux Falls Metro
5 cities
St. Cloud Metro
5 cities

Most Active Radon Markets in Minnesota

Cities with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Savage 5.00 pCi/L 3
Faribault 10.00 pCi/L 2
Shakopee 6.50 pCi/L 2
Minneapolis 5.00 pCi/L 2
Lakeville 6.00 pCi/L 1
Delano 5.00 pCi/L 1
Montgomery 5.00 pCi/L 1
Rosemount No submissions 0

Minnesota Counties by EPA Radon Zone

All 87 Minnesota counties with their EPA radon zone classification and user-submitted average radon levels.

Zone 1 — High Risk
Predicted avg. indoor levels > 4.0 pCi/L
Zone 1 68 counties
Becker County Zone 1
Avg:
Big Stone County Zone 1
Avg:
Blue Earth County Zone 1
Avg:
Brown County Zone 1
Avg: 12.0 pCi/L
Carver County Zone 1
Avg: 5.5 pCi/L
Chippewa County Zone 1
Avg:
Clay County Zone 1
Avg:
Cottonwood County Zone 1
Avg:
Dakota County Zone 1
Avg: 9.3 pCi/L
Dodge County Zone 1
Avg:
Douglas County Zone 1
Avg:
Faribault County Zone 1
Avg: 6.5 pCi/L
Fillmore County Zone 1
Avg:
Freeborn County Zone 1
Avg: 7.0 pCi/L
Goodhue County Zone 1
Avg:
Grant County Zone 1
Avg:
Hennepin County Zone 1
Avg: 6.3 pCi/L
Houston County Zone 1
Avg: 7.5 pCi/L
Hubbard County Zone 1
Avg: 4.0 pCi/L
Jackson County Zone 1
Avg:
Kanabec County Zone 1
Avg: 6.0 pCi/L
Kandiyohi County Zone 1
Avg: 14.0 pCi/L
Kittson County Zone 1
Avg:
Lac qui Parle County Zone 1
Avg:
Le Sueur County Zone 1
Avg: 8.0 pCi/L
Lincoln County Zone 1
Avg:
Lyon County Zone 1
Avg:
Mahnomen County Zone 1
Avg:
Marshall County Zone 1
Avg:
Martin County Zone 1
Avg: 8.0 pCi/L
McLeod County Zone 1
Avg: 6.3 pCi/L
Meeker County Zone 1
Avg: 5.0 pCi/L
Mower County Zone 1
Avg: 5.5 pCi/L
Murray County Zone 1
Avg:
Nicollet County Zone 1
Avg: 8.0 pCi/L
Nobles County Zone 1
Avg:
Norman County Zone 1
Avg:
Olmsted County Zone 1
Avg:
Otter Tail County Zone 1
Avg: 5.0 pCi/L
Pennington County Zone 1
Avg: 9.0 pCi/L
Pipestone County Zone 1
Avg:
Polk County Zone 1
Avg: 7.0 pCi/L
Pope County Zone 1
Avg:
Ramsey County Zone 1
Avg: 7.0 pCi/L
Red Lake County Zone 1
Avg:
Redwood County Zone 1
Avg:
Renville County Zone 1
Avg:
Rice County Zone 1
Avg: 7.3 pCi/L
Rock County Zone 1
Avg: 8.5 pCi/L
Roseau County Zone 1
Avg: 6.0 pCi/L
Scott County Zone 1
Avg: 5.1 pCi/L
Sherburne County Zone 1
Avg: 7.0 pCi/L
Sibley County Zone 1
Avg:
Stearns County Zone 1
Avg: 4.5 pCi/L
Steele County Zone 1
Avg: 4.0 pCi/L
Stevens County Zone 1
Avg: 12.0 pCi/L
Swift County Zone 1
Avg:
Todd County Zone 1
Avg:
Traverse County Zone 1
Avg:
Wabasha County Zone 1
Avg:
Wadena County Zone 1
Avg:
Waseca County Zone 1
Avg:
Washington County Zone 1
Avg: 5.3 pCi/L
Watonwan County Zone 1
Avg:
Wilkin County Zone 1
Avg:
Winona County Zone 1
Avg: 8.5 pCi/L
Wright County Zone 1
Avg: 8.7 pCi/L
Yellow Medicine County Zone 1
Avg:
Zone 2 — Moderate Risk
Predicted avg. indoor levels 2–4 pCi/L
Zone 2 19 counties
Aitkin County Zone 2
Avg: 8.0 pCi/L
Anoka County Zone 2
Avg: 5.0 pCi/L
Beltrami County Zone 2
Avg:
Benton County Zone 2
Avg:
Carlton County Zone 2
Avg: 6.8 pCi/L
Cass County Zone 2
Avg: 5.7 pCi/L
Chisago County Zone 2
Avg: 4.5 pCi/L
Clearwater County Zone 2
Avg:
Cook County Zone 2
Avg: 12.0 pCi/L
Crow Wing County Zone 2
Avg: 9.3 pCi/L
Isanti County Zone 2
Avg:
Itasca County Zone 2
Avg: 10.0 pCi/L
Koochiching County Zone 2
Avg: 5.0 pCi/L
Lake County Zone 2
Avg:
Lake of the Woods County Zone 2
Avg:
Mille Lacs County Zone 2
Avg: 12.0 pCi/L
Morrison County Zone 2
Avg:
Pine County Zone 2
Avg: 10.0 pCi/L
St. Louis County Zone 2
Avg:

Minnesota Cities & Towns

Browse radon data for individual cities across Minnesota. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.

Ada Adams Adolph Adrian Afton Aitkin Akeley Albany Albert Lea Alberta Albertville Alborn Alden Aldrich Alexandria Alpha Altura Alvarado Amboy Andover Angora Annandale Anoka Appleton Arco Argyle Arlington Ashby Askov Atwater Audubon Aurora Austin Avoca Avon Babbitt Backus Badger Bagley Balaton Barnesville Barnum Barrett Battle Lake Baudette Baxter Bayport Beardsley Beaver Creek Becker Bejou Belgrade Belle Plaine Bellingham Beltrami Belview Bemidji Bena Benson Bertha Bethel Big Falls Big Lake Bigelow Bigfork Bingham Lake Bird Island Blackduck Blomkest Blooming Prairie Blue Earth Bluffton Borup Bovey Bowlus Boyd Braham Brainerd Brandon Breckenridge Brewster Bricelyn Brimson Britt Brook Park Brooks Brookston Brooten Browerville Browns Valley Brownsdale Brownsville Brownton Bruno Buffalo Buffalo Lake Burnsville Burtrum Butterfield Byron Caledonia Callaway Cambridge Campbell Canby Cannon Falls Canton Canyon Carlos Carlton Carver Cass Lake Cedar Center City Ceylon Champlin Chandler Chanhassen Chaska Chatfield Chisago City Chisholm Chokio Circle Pines Clara City Claremont Clarissa Clarkfield Clarks Grove Clear Lake Clearbrook Clearwater Clements Cleveland Climax Clinton Clitherall Clontarf Cloquet Cohasset Cokato Cold Spring Cologne Comfrey Cook Correll Cosmos Cottage Grove Cotton Cottonwood Courtland Crane Lake Cromwell Crookston Crosby Crosslake Currie Cushing Cyrus Dakota Dalbo Dalton Danube Danvers Darwin Dassel Dawson Dayton Deer Creek Deer River Deerwood Delano Delavan Dennison Dent Detroit Lakes Dexter Dilworth Dodge Center Donnelly Dover Duluth Dumont Dundas Dunnell Eagle Bend Eagle Lake East Grand Forks Easton Echo Eden Prairie Eden Valley Edgerton Effie Eitzen Elbow Lake Elgin Elizabeth Elk River Elko New Market Elkton Ellendale Ellsworth Elmore Ely Elysian Embarrass Emily Emmons Erhard Erskine Esko Euclid Evansville Eveleth Excelsior Eyota Fairfax Fairmont Faribault Farmington Farwell Federal Dam Felton Fergus Falls Fertile Fifty Lakes Finland Finlayson Fisher Floodwood Foley Forbes Forest Lake Foreston Fort Ripley Fosston Fountain Foxhome Franklin Frazee Freeport Frontenac Frost Fulda Garden City Garfield Garrison Garvin Gary Gatzke Gaylord Georgetown Ghent Gibbon Gilbert Glencoe Glenville Glenwood Glyndon Gonvick Good Thunder Goodhue Goodland Goodridge Graceville Granada Grand Marais Grand Meadow Grand Portage Grand Rapids Granite Falls Grasston Green Isle Greenbush Grey Eagle Grove City Grygla Gully Hackensack Hallock Halma Halstad Hamburg Hamel Hampton Hancock Hanley Falls Hanover Hanska Hardwick Harmony Harris Hartland Hastings Hawley Hayfield Hayward Hector Henderson Hendricks Hendrum Henning Henriette Herman Heron Lake Hewitt Hibbing Hill City Hillman Hills Hinckley Hines Hitterdal Hoffman Hokah Holdingford Holland Hollandale Holloway Holyoke Hopkins Houston Hovland Howard Lake Hoyt Lakes Hugo Hutchinson International Falls Inver Grove Heights Iona Iron Ironton Isabella Isanti Isle Ivanhoe Jackson Jacobson Janesville Jasper Jeffers Jordan Kabetogama Kanaranzi Kandiyohi Karlstad Kasota Kasson Keewatin Kelliher Kellogg Kennedy Kenneth Kensington Kent Kenyon Kerkhoven Kerrick Kettle River Kiester Kilkenny Kimball Kinney La Crescent Lafayette Lake Benton Lake Bronson Lake City Lake Crystal Lake Elmo Lake George Lake Lillian Lake Park Lake Wilson Lakefield Lakeland Lakeville Lamberton Lancaster Lanesboro Laporte Le Center Le Roy Le Sueur Lengby Leonard Lester Prairie Lewiston Lewisville Lindstrom Lismore Litchfield Little Falls Littlefork Loman Long Lake Long Prairie Longville Lonsdale Loretto Lowry Lucan Lutsen Luverne Lyle Lynd Mabel Madelia Madison Madison Lake Magnolia Mahnomen Makinen Mankato Mantorville Maple Lake Maple Plain Mapleton Marcell Margie Marietta Marine On Saint Croix Marshall Max Mayer Maynard Mazeppa Mc Grath Mcgregor Mcintosh Meadowlands Medford Melrose Menahga Mentor Merrifield Middle River Milaca Milan Millville Milroy Miltona Minneapolis Minneota Minnesota City Minnesota Lake Minnetonka Mizpah Montevideo Montgomery Monticello Montrose Moorhead Moose Lake Mora Morgan Morris Morristown Morton Motley Mound Mountain Iron Mountain Lake Murdock Nashua Nashwauk Naytahwaush Nelson Nerstrand Nevis New Germany New London New Prague New Richland New Ulm New York Mills Newfolden Newport Nicollet Nielsville Nimrod Nisswa Norcross North Branch Northfield Northome Norwood Young America Noyes Oak Park Odessa Odin Ogema Ogilvie Okabena Oklee Olivia Onamia Ormsby Oronoco Orr Ortonville Osage Osakis Oslo Osseo Ostrander Ottertail Outing Owatonna Palisade Park Rapids Parkers Prairie Paynesville Pelican Rapids Pemberton Pengilly Pennington Pennock Pequot Lakes Perham Perley Peterson Pierz Pillager Pine City Pine Island Pine River Pipestone Plainview Plato Plummer Ponsford Porter Preston Princeton Prinsburg Prior Lake Puposky Racine Randall Randolph Raymond Reading Reads Landing Red Lake Falls Red Wing Redwood Falls Remer Renville Revere Rice Richmond Richville Rochert Rochester Rockford Rogers Rollingstone Roosevelt Roscoe Rose Creek Roseau Rosemount Rothsay Round Lake Royalton Rush City Rushford Rushmore Russell Ruthton Sabin Sacred Heart Saginaw Saint Bonifacius Saint Charles Saint Cloud Saint Francis Saint Hilaire Saint James Saint Joseph Saint Michael Saint Paul Saint Paul Park Saint Peter Saint Stephen Saint Vincent Salol Sanborn Sandstone Sargeant Sartell Sauk Centre Sauk Rapids Savage Sawyer Scandia Schroeder Seaforth Sebeka Shafer Shakopee Shelly Sherburn Shevlin Side Lake Silver Bay Silver Lake Slayton Sleepy Eye Solway South Haven South Saint Paul Spicer Spring Grove Spring Lake Spring Park Spring Valley Springfield Squaw Lake Stacy Stanchfield Staples Starbuck Steen Stephen Stewart Stewartville Stillwater Storden Strandquist Strathcona Sturgeon Lake Sunburg Swan River Swanville Swatara Swift Talmoon Tamarack Taopi Taunton Taylors Falls Tenstrike Thief River Falls Tintah Tofte Tower Tracy Trail Trimont Truman Twin Lakes Twin Valley Two Harbors Tyler Ulen Underwood Upsala Utica Vergas Verndale Vernon Center Vesta Victoria Viking Villard Vining Virginia Wabasha Wabasso Waconia Wadena Wahkon Waite Park Waldorf Walker Walnut Grove Waltham Wanamingo Wannaska Warba Warren Warroad Warsaw Waseca Waskish Watertown Waterville Watkins Watson Waubun Waverly Wayzata Webster Welch Welcome Wells Wendell West Concord Westbrook Wheaton Williams Willmar Willow River Wilmont Windom Winger Winnebago Winona Winsted Winthrop Wirt Wolverton Wood Lake Woodstock Worthington Wrenshall Wright Wykoff Wyoming Young America Zimmerman Zumbro Falls Zumbrota

Frequently Asked Questions About Radon in Minnesota

What radon level is considered "high"?
The EPA action level is 4.0 pCi/L — many homeowners also choose to fix levels between 2.0 and 4.0 pCi/L. Any home with levels at or above 4.0 pCi/L should be mitigated.
How much does radon mitigation cost in Minnesota?
Radon mitigation typically costs between $800 and $2,500, depending on foundation type and radon severity. A standard sub-slab depressurization system usually falls in the $1,000–$1,500 range.
Does mitigation actually work?
Yes — properly installed systems typically reduce radon levels by up to 99%. A post-mitigation test confirms the system is working correctly, and many homeowners re-test periodically.
Should I test again after mitigation?
Yes. A post-mitigation test is the proof your system is working. The EPA recommends testing within 30 days of installation and retesting every two years.
What EPA Radon Zone is my Minnesota county in?
Minnesota counties are classified into three EPA Radon Zones. Zone 1 (highest risk, >4 pCi/L) indicates the most concern. Zone 2 (moderate, 2–4 pCi/L) and Zone 3 (lowest, <2 pCi/L) round out the classification. Use the county directory above to find your specific county's zone and data.

Get a Free Radon Quote for Your Minnesota Home

Connect with certified radon testing and mitigation professionals in your area.