Radon levels in Nebraska: Moderate

The model predicts a population-weighted basement average of 3.6 pCi/L across Nebraska's 93 counties - about 2.0× the US average of 1.8 pCi/L. Above-ground floors average 2.1 pCi/L.

Predicted (model estimate). The pCi/L figures on this page are long-term area averages from a peer-reviewed national model built on millions of real radon tests (2001-2021). They describe the typical home in this area - not your home, which can be several times higher or lower. The EPA radon zone is a separate, 1993 county-level classification. How the numbers work.

53 / 93

EPA Zone 1 counties (57%)

24 / 16

Zone 2 / Zone 3 counties

42

counties predicted ≥ 4 pCi/L

50.1%

of ZIP codes predicted ≥ 4 pCi/L

Nebraska counties by predicted radon

Sorted highest to lowest predicted basement average. 93 counties.

CountyPredicted basementUpstairsGradeEPA zoneZIPs
Burt County5.7 pCi/L3.3HighEPA Zone 15
Dixon County5.6 pCi/L3.0HighEPA Zone 18
Wayne County5.4 pCi/L2.3HighEPA Zone 14
Butler County5.3 pCi/L2.9HighEPA Zone 19
Polk County5.3 pCi/L2.8HighEPA Zone 15
York County5.2 pCi/L2.8HighEPA Zone 16
Nemaha County5.2 pCi/L2.9HighEPA Zone 16
Cedar County5.2 pCi/L3.0HighEPA Zone 19
Seward County5.2 pCi/L2.7HighEPA Zone 18
Fillmore County5.0 pCi/L2.7HighEPA Zone 18
Otoe County5.0 pCi/L2.6HighEPA Zone 110
Saunders County5.0 pCi/L2.7HighEPA Zone 114
Stanton County4.9 pCi/L2.8HighEPA Zone 12
Cass County4.9 pCi/L2.7HighEPA Zone 113
Thurston County4.9 pCi/L2.6HighEPA Zone 17
Clay County4.9 pCi/L2.6HighEPA Zone 110
Gage County4.8 pCi/L2.7HighEPA Zone 113
Hamilton County4.8 pCi/L2.7HighEPA Zone 16
Richardson County4.7 pCi/L2.6HighEPA Zone 18
Webster County4.7 pCi/L2.5HighEPA Zone 15
Nuckolls County4.6 pCi/L2.4HighEPA Zone 17
Thayer County4.6 pCi/L2.4HighEPA Zone 111
Dodge County4.5 pCi/L2.6HighEPA Zone 17
Madison County4.5 pCi/L2.7HighEPA Zone 15
Johnson County4.5 pCi/L2.5HighEPA Zone 15
Saline County4.5 pCi/L2.6HighEPA Zone 17
Washington County4.5 pCi/L2.9HighEPA Zone 15
Kearney County4.4 pCi/L2.5HighEPA Zone 13
Jefferson County4.4 pCi/L2.5HighEPA Zone 17
Cuming County4.4 pCi/L2.6HighEPA Zone 14
Franklin County4.4 pCi/L2.4HighEPA Zone 18
Furnas County4.4 pCi/L2.4HighEPA Zone 17
Boone County4.4 pCi/L2.6HighEPA Zone 15
Nance County4.3 pCi/L2.4HighEPA Zone 13
Harlan County4.3 pCi/L2.4HighEPA Zone 14
Knox County4.3 pCi/L2.4HighEPA Zone 18
Colfax County4.3 pCi/L2.3HighEPA Zone 14
Frontier County4.3 pCi/L2.4HighEPA Zone 16
Adams County4.2 pCi/L2.4HighEPA Zone 16
Phelps County4.2 pCi/L2.5HighEPA Zone 15
Boyd County4.1 pCi/L2.4HighEPA Zone 15
Gosper County4.1 pCi/L2.3HighEPA Zone 12
Pawnee County4.0 pCi/L2.3ModerateEPA Zone 16
Dakota County3.9 pCi/L2.2ModerateEPA Zone 15
Greeley County3.9 pCi/L2.3ModerateEPA Zone 14
Hayes County3.8 pCi/L2.2ModerateEPA Zone 12
Platte County3.8 pCi/L2.3ModerateEPA Zone 17
Red Willow County3.7 pCi/L2.2ModerateEPA Zone 15
Dawes County3.6 pCi/L2.0ModerateEPA Zone 23
Hitchcock County3.6 pCi/L2.0ModerateEPA Zone 13
Pierce County3.6 pCi/L2.0ModerateEPA Zone 14
Antelope County3.6 pCi/L1.8ModerateEPA Zone 28
Lancaster County3.5 pCi/L2.1ModerateEPA Zone 135
Buffalo County3.5 pCi/L1.9ModerateEPA Zone 211
Dundy County3.3 pCi/L1.8ModerateEPA Zone 24
Sarpy County3.2 pCi/L2.0ModerateEPA Zone 111
Keith County3.2 pCi/L1.8ModerateEPA Zone 25
Chase County3.1 pCi/L1.8ModerateEPA Zone 24
Howard County3.1 pCi/L1.6ModerateEPA Zone 26
Douglas County3.1 pCi/L2.0ModerateEPA Zone 132
Sioux County3.1 pCi/L1.5ModerateEPA Zone 25
Cheyenne County3.1 pCi/L1.8ModerateEPA Zone 25
Custer County3.1 pCi/L1.6ModerateEPA Zone 211
Valley County3.1 pCi/L1.7ModerateEPA Zone 24
Sheridan County3.0 pCi/L1.8ModerateEPA Zone 25
Scotts Bluff County3.0 pCi/L1.9ModerateEPA Zone 23
Garfield County2.9 pCi/L1.5ModerateEPA Zone 31
Perkins County2.9 pCi/L1.7ModerateEPA Zone 24
Sherman County2.9 pCi/L1.7ModerateEPA Zone 25
Banner County2.9 pCi/L1.7ModerateEPA Zone 21
Dawson County2.8 pCi/L1.6ModerateEPA Zone 26
Brown County2.8 pCi/L1.5ModerateEPA Zone 33
Morrill County2.8 pCi/L1.5ModerateEPA Zone 24
Kimball County2.7 pCi/L1.6ModerateEPA Zone 23
Merrick County2.7 pCi/L1.4ModerateEPA Zone 26
Logan County2.7 pCi/L1.4ModerateEPA Zone 31
Garden County2.7 pCi/L1.6ModerateEPA Zone 33
Hall County2.6 pCi/L1.5ModerateEPA Zone 26
Box Butte County2.6 pCi/L1.5ModerateEPA Zone 22
Holt County2.6 pCi/L1.3ModerateEPA Zone 39
Keya Paha County2.6 pCi/L1.5ModerateEPA Zone 22
Deuel County2.6 pCi/L1.5ModerateEPA Zone 22
Arthur County2.5 pCi/L1.3ModerateEPA Zone 31
Cherry County2.5 pCi/L1.3ModerateEPA Zone 39
Thomas County2.4 pCi/L1.2ModerateEPA Zone 32
Blaine County2.4 pCi/L1.1ModerateEPA Zone 33
Lincoln County2.4 pCi/L1.6ModerateEPA Zone 39
Rock County2.4 pCi/L1.2ModerateEPA Zone 32
Wheeler County2.4 pCi/L1.1ModerateEPA Zone 32
Grant County2.4 pCi/L1.3ModerateEPA Zone 32
McPherson County2.3 pCi/L1.2ModerateEPA Zone 31
Loup County2.3 pCi/L1.1ModerateEPA Zone 31
Hooker County2.3 pCi/L1.1ModerateEPA Zone 31

Nebraska radon questions

Is radon high in Nebraska?
Nebraska's population-weighted predicted basement average is 3.6 pCi/L, about 2.0× the US average of 1.8. 42 of its 93 modeled counties are predicted at or above the EPA action level of 4 pCi/L, 51 are in the 2-4 "consider fixing" range and 0 are below 2. 50.1% of Nebraska ZIP codes are predicted at 4 or higher.
Which Nebraska county has the highest radon?
Burt County has the highest predicted basement average in Nebraska at 5.7 pCi/L (EPA Zone 1). The lowest is Hooker County at 2.3 pCi/L. These are modeled area averages; individual homes in any county can test far higher.
How many EPA Zone 1 counties are in Nebraska?
53 of Nebraska's 93 counties (57%) are EPA Zone 1 (highest potential), 24 are Zone 2 and 16 are Zone 3. The EPA zone map dates from 1993; the predicted values on this page come from a 2001-2021 model built on millions of actual tests, so the two can disagree for a given county.
Should I test for radon in Nebraska?
Yes - with some urgency. Nebraska's predicted average is in the moderate range, and 99.8% of its ZIP codes are predicted at 2 pCi/L or higher. A short-term charcoal kit or a continuous digital monitor will tell you your actual level within days.

Nebraska radon program

Many states offer free or discounted test kits and keep lists of certified mitigators. Find the Nebraska radon office through the EPA state radon contacts page. Then read how to test and what mitigation costs.