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Radon Levels, Testing and Mitigation in Nebraska

Nebraska has 93 counties, with 53 classified as EPA Zone 1 (highest risk). With an average radon level of 7.15 pCi/L, Nebraska state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.

Nebraska is the 16th most expansive in terms of size, and the 37th most populous. It also happens to be the 43rd most densely populated state in the country.

Nebraska 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.

7.15
Avg. pCi/L
93
Counties
53
Zone 1 Counties

Nebraska Radon Map

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

Nebraska Metro Areas

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

Lincoln Metro
5 cities
Omaha Metro
5 cities

Most Active Radon Markets in Nebraska

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

CityAvg User Radon LevelSubmissions
Chadron 8.20 pCi/L 5
Beatrice 7.50 pCi/L 2
Lincoln 4.50 pCi/L 2
Seward No submissions 0

Nebraska Counties by EPA Radon Zone

All 93 Nebraska 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 53 counties
Adams County Zone 1
Avg:
Boone County Zone 1
Avg:
Boyd County Zone 1
Avg:
Burt County Zone 1
Avg: 11.0 pCi/L
Butler County Zone 1
Avg:
Cass County Zone 1
Avg: 6.0 pCi/L
Cedar County Zone 1
Avg:
Clay County Zone 1
Avg: 4.0 pCi/L
Colfax County Zone 1
Avg:
Cuming County Zone 1
Avg:
Dakota County Zone 1
Avg:
Dixon County Zone 1
Avg:
Dodge County Zone 1
Avg:
Douglas County Zone 1
Avg:
Fillmore County Zone 1
Avg: 8.0 pCi/L
Franklin County Zone 1
Avg:
Frontier County Zone 1
Avg:
Furnas County Zone 1
Avg:
Gage County Zone 1
Avg: 7.5 pCi/L
Gosper County Zone 1
Avg:
Greeley County Zone 1
Avg:
Hamilton County Zone 1
Avg: 12.0 pCi/L
Harlan County Zone 1
Avg:
Hayes County Zone 1
Avg:
Hitchcock County Zone 1
Avg:
Jefferson County Zone 1
Avg: 9.0 pCi/L
Johnson County Zone 1
Avg: 5.0 pCi/L
Kearney County Zone 1
Avg:
Knox County Zone 1
Avg: 10.0 pCi/L
Lancaster County Zone 1
Avg: 4.5 pCi/L
Madison County Zone 1
Avg: 7.5 pCi/L
Nance County Zone 1
Avg:
Nemaha County Zone 1
Avg:
Nuckolls County Zone 1
Avg:
Otoe County Zone 1
Avg:
Pawnee County Zone 1
Avg:
Phelps County Zone 1
Avg:
Pierce County Zone 1
Avg: 4.0 pCi/L
Platte County Zone 1
Avg: 20.0 pCi/L
Polk County Zone 1
Avg:
Red Willow County Zone 1
Avg:
Richardson County Zone 1
Avg:
Saline County Zone 1
Avg:
Sarpy County Zone 1
Avg:
Saunders County Zone 1
Avg: 4.0 pCi/L
Seward County Zone 1
Avg: 8.0 pCi/L
Stanton County Zone 1
Avg:
Thayer County Zone 1
Avg:
Thurston County Zone 1
Avg:
Washington County Zone 1
Avg: 9.0 pCi/L
Wayne County Zone 1
Avg:
Webster County Zone 1
Avg: 8.0 pCi/L
York County Zone 1
Avg: 7.0 pCi/L
Zone 2 — Moderate Risk
Predicted avg. indoor levels 2–4 pCi/L
Zone 2 24 counties
Antelope County Zone 2
Avg:
Banner County Zone 2
Avg:
Box Butte County Zone 2
Avg: 5.0 pCi/L
Buffalo County Zone 2
Avg:
Chase County Zone 2
Avg:
Cheyenne County Zone 2
Avg: 4.0 pCi/L
Custer County Zone 2
Avg:
Dawes County Zone 2
Avg: 8.2 pCi/L
Dawson County Zone 2
Avg: 4.5 pCi/L
Deuel County Zone 2
Avg:
Dundy County Zone 2
Avg:
Hall County Zone 2
Avg: 4.3 pCi/L
Howard County Zone 2
Avg:
Keith County Zone 2
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Keya Paha County Zone 2
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Kimball County Zone 2
Avg:
Merrick County Zone 2
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Morrill County Zone 2
Avg:
Perkins County Zone 2
Avg: 6.0 pCi/L
Scotts Bluff County Zone 2
Avg: 4.0 pCi/L
Sheridan County Zone 2
Avg:
Sherman County Zone 2
Avg:
Sioux County Zone 2
Avg:
Valley County Zone 2
Avg:
Zone 3 — Low Risk
Predicted avg. indoor levels < 2 pCi/L
Zone 3 16 counties
Arthur County Zone 3
Avg:
Blaine County Zone 3
Avg:
Brown County Zone 3
Avg: 3.0 pCi/L
Cherry County Zone 3
Avg:
Garden County Zone 3
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Garfield County Zone 3
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Grant County Zone 3
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Holt County Zone 3
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Hooker County Zone 3
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Lincoln County Zone 3
Avg: 8.0 pCi/L
Logan County Zone 3
Avg:
Loup County Zone 3
Avg:
McPherson County Zone 3
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Rock County Zone 3
Avg:
Thomas County Zone 3
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Wheeler County Zone 3
Avg:

Nebraska Cities & Towns

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

Adams Ainsworth Albion Alda Alexandria Allen Alliance Alma Alvo Amelia Ames Amherst Angora Anselmo Ansley Arapahoe Arcadia Archer Arlington Arnold Arthur Ashby Ashland Ashton Atkinson Auburn Aurora Avoca Axtell Ayr Bancroft Barneston Bartlett Bartley Bassett Battle Creek Bayard Beatrice Beaver City Beaver Crossing Bee Beemer Belden Belgrade Bellevue Bellwood Belvidere Benedict Benkelman Bennet Bennington Bertrand Big Springs Bingham Bladen Blair Bloomfield Bloomington Blue Hill Blue Springs Boelus Bradshaw Brady Brainard Brewster Bridgeport Bristow Broadwater Brock Broken Bow Brownville Brule Bruning Bruno Brunswick Burchard Burr Burwell Bushnell Butte Byron Cairo Callaway Cambridge Campbell Carleton Carroll Cedar Bluffs Cedar Rapids Center Central City Ceresco Chadron Chambers Champion Chapman Chappell Chester Clarks Clarkson Clatonia Clay Center Clearwater Cody Coleridge Colon Columbus Comstock Concord Cook Cortland Cozad Crab Orchard Craig Crawford Creighton Creston Crete Crofton Crookston Culbertson Curtis Dakota City Dalton Danbury Dannebrog Davenport Davey David City Dawson Daykin De Witt Decatur Denton Deshler Deweese Dickens Diller Dix Dixon Dodge Doniphan Dorchester Douglas Du Bois Dunbar Dunning Dwight Eagle Eddyville Edgar Edison Elba Elgin Elk Creek Elkhorn Ellsworth Elm Creek Elmwood Elsie Elsmere Elwood Elyria Emerson Emmet Enders Endicott Ericson Eustis Ewing Exeter Fairbury Fairfield Fairmont Falls City Farnam Farwell Filley Firth Fordyce Fort Calhoun Franklin Fremont Friend Fullerton Funk Garland Geneva Genoa Gering Gibbon Giltner Glenvil Gordon Gothenburg Grafton Grand Island Grant Greeley Greenwood Gresham Gretna Guide Rock Gurley Haigler Hallam Halsey Hampton Hardy Harrisburg Harrison Hartington Harvard Hastings Hay Springs Hayes Center Hazard Heartwell Hebron Hemingford Henderson Hendley Herman Hershey Hickman Hildreth Holbrook Holdrege Holstein Homer Hooper Hordville Hoskins Howells Hubbard Hubbell Humboldt Humphrey Hyannis Imperial Inavale Indianola Inland Inman Ithaca Jackson Jansen Johnson Johnstown Julian Juniata Kearney Kenesaw Kennard Keystone Kilgore Kimball La Vista Lakeside Laurel Lawrence Lebanon Leigh Lemoyne Lewellen Lewiston Lexington Liberty Lincoln Lindsay Linwood Lisco Litchfield Lodgepole Long Pine Loomis Lorton Louisville Loup City Lyman Lynch Lyons Macy Madison Madrid Malcolm Malmo Marquette Marsland Martell Maskell Mason City Max Maxwell Maywood Mc Cook Mc Cool Junction Mclean Mead Meadow Grove Memphis Merna Merriman Milford Miller Milligan Mills Minatare Minden Mitchell Monroe Moorefield Morrill Morse Bluff Mullen Murdock Murray Naper Naponee Nebraska City Nehawka Neligh Nelson Nemaha Nenzel Newcastle Newman Grove Newport Nickerson Niobrara Norfolk North Bend North Loup North Platte Oak Oakdale Oakland Oconto Odell Odessa Offutt A F B Ogallala Ohiowa Omaha Oneill Ong Orchard Ord Orleans Osceola Oshkosh Osmond Otoe Overton Oxford Page Palisade Palmer Palmyra Papillion Parks Pawnee City Paxton Pender Peru Petersburg Phillips Pickrell Pierce Pilger Plainview Platte Center Plattsmouth Pleasant Dale Pleasanton Plymouth Polk Ponca Potter Prague Primrose Purdum Randolph Ravenna Raymond Red Cloud Republican City Reynolds Rising City Riverdale Riverton Roca Rockville Rogers Rosalie Roseland Royal Rulo Rushville Ruskin Saint Edward Saint Helena Saint Libory Saint Paul Salem Sargent Saronville Schuyler Scotia Scottsbluff Scribner Seneca Seward Shelby Shelton Shickley Shubert Sidney Silver Creek Smithfield South Sioux City Spalding Sparks Spencer Springfield Springview St Columbans Stamford Stanton Staplehurst Stapleton Steele City Steinauer Stella Sterling Stockville Strang Stratton Stromsburg Stuart Sumner Superior Surprise Sutherland Sutton Swanton Syracuse Table Rock Talmage Taylor Tecumseh Tekamah Thedford Thurston Tilden Tobias Trenton Trumbull Tryon Ulysses Unadilla Union Upland Utica Valentine Valley Valparaiso Venango Verdigre Verdon Virginia Waco Wahoo Wakefield Wallace Walthill Walton Washington Waterbury Waterloo Wauneta Wausa Waverly Wayne Weeping Water Wellfleet West Point Western Westerville Weston Whitman Whitney Wilber Wilcox Willow Island Wilsonville Winnebago Winnetoon Winside Wisner Wolbach Wood Lake Wood River Wymore Wynot York Yutan

Frequently Asked Questions About Radon in Nebraska

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 Nebraska?
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 Nebraska county in?
Nebraska 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.

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