Skip to content
RADON411

Locations and reports

Radon Levels in Dodge County, Nebraska

EPA puts Dodge County in Zone 1, its highest radon zone, and high results are common there: 62.1% of the 116 radon tests reported to CDC (2023) came back at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

How to test this homeFind a certified tester

  • Share at 4+ pCi/L

    62.1%

    23.9 pts above NE

    Dodge
    62.1%
    Nebraska
    38.2%

    116 tests, 2023

  • Median result

    5.0pCi/L

    Action level reached

    Dodge
    5.0 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2023

  • Tests reported

    116

    12th of 33 by tests

    Dodge
    116
    Lancaster
    4,058

    Reported to CDC before any fix, 2023

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    EPA predicts over 4 pCi/L indoors

  • Rank in Nebraska

    17 of 33

    Middle half

    Dodge
    62.1%
    Gage
    79.8%

    By share, of 33 with 30+ tests

Read a result for Dodge County

Starts at Dodge County's median, 5.0 pCi/L

5.0pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 5.0 pCi/L

At or above 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. Dodge County's median reported result, 2023.

Interpret this readingWhat a fix costs

The data

Dodge County, At a glance

Dodge County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Dodge County in and predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county. That is one forecast for the whole county, not a reading of any address in it; homes above EPA's turn up in all three zones.

USGS geologic potential: High across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Dodge County, 2023

Share of reported tests at or above 4 pCi/L, by year, Dodge County
Share of reported tests at or above 4 pCi/L, by year, Dodge County
YearShare of reported tests at or above 4 pCi/L
201447.4%
201548.8%
201648.8%
201749.3%
201845.2%
201950.6%
202054.1%
202134.6%
202239.5%
202362.1%

2023: 62.1%. Across these years the share ran from 34.6% to 62.1%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

These are the 116 tests reported to CDC for Dodge County over 2023, many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.

Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

How to read these figures

Dodge County, Compared

Dodge County radon figures, compared

Calculated by Radon411

More than half: 62.1% of the 116 radon tests reported to CDC for Dodge County in 2023 read at least 4 pCi/L. That places it 17th of 33 Nebraska counties with 30 or more tests for the same period. That is 23.9 points above the 38.2% pooled from 86 Nebraska counties.

The median result, 5.0 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 48.0 pCi/L. The rest split 19.8% under 2 pCi/L and 18.1% from 2 to 4 (Nebraska: 39.2% and 22.6%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 62.1% share point the same way here.

3 of its 4 bordering counties with figures ran higher, led by Washington County at 76.1%; Douglas County reported 38.7%. Statewide for the same period, Gage County reported the highest share (79.8%) and Dakota County the lowest (3.1%).

The busiest year on file was 2016, with 1,506 tests reported; the quietest, 2023, had 116.

Over 10 years of annual figures the share rose 14.7 points, from 47.4% in 2014 to 62.1% in 2023; its peak was 62.1% in 2023. Nationally, every county with a figure for the same period pools to 33.4%; Dodge County sits 28.7 points above it. CDC also counts 44 tests taken after mitigation in Dodge County for the same period: tests in homes where a fix was already in.

Share of reported tests at or above 4 pCi/L by year, Dodge County against Nebraska2014 to 2023, years with 30 or more tests: Dodge County 47.4% to 62.1%, the state's pooled share 38.2% in 2023.
Dodge CountyNebraska, pooled
Share of reported tests at or above 4 pCi/L by year, Dodge County against Nebraska: data table
YearTestsDodge County, at or above 4 pCi/LNebraska, pooled
201499947.4%50.5%
20151,24248.8%53.3%
20161,50648.8%47.4%
20171,26649.3%47.7%
201884945.2%44.5%
201977150.6%44.3%
202065454.1%42.2%
202147734.6%34.9%
202215739.5%34.0%
202311662.1%38.2%
Dodge County against Nebraska, the United States and nearby counties, 2023
AreaTestsAt or above 4 pCi/LMedianDifference from Dodge County
Dodge County11662.1%5.0 pCi/LThis county
Nebraska, pooled86 counties, pooled11,16338.2%Not pooled−23.9 points
United States, pooled642 counties, pooled128,74033.4%Not pooled−28.7 points
Gage Countyhighest in the state8479.8%9.4 pCi/L+17.7 points
Dakota Countylowest in the state1303.1%0.4 pCi/L−59.0 points
Burt County, NEborders it2491.7%9.0 pCi/L+29.6 points
Washington County, NEborders it7176.1%6.5 pCi/L+14.0 points
Saunders County, NEborders it9773.2%6.2 pCi/L+11.1 points
Cuming County, NEborders it3770.3%6.8 pCi/L+8.2 points
Butler County, NEborders it2356.5%7.0 pCi/L−5.6 points
Colfax County, NEborders it1855.6%7.6 pCi/L−6.5 points
Douglas County, NEborders it2,75438.7%2.9 pCi/L−23.4 points
Where Dodge County's reported results fell, 2023, beside Nebraska and the United States
ResultDodge County testsDodge County shareNebraska shareU.S. shareAgainst Nebraska
Under 2 pCi/L2319.8%39.2%41.4%−19.4 points
2 to 4 pCi/L2118.1%22.6%25.2%−4.5 points
4 pCi/L and above7262.1%38.2%33.4%+23.9 points
Dodge County ranked among the 33 Nebraska counties with 30 or more tests, by share at or above 4 pCi/L, 2023
CountyRankTestsAt or above 4 pCi/LMedian
Phelps County12 of 334365.1%4.9 pCi/L
Hamilton County13 of 334864.6%5.0 pCi/L
York County14 of 336264.5%5.7 pCi/L
Otoe County15 of 335964.4%5.7 pCi/L
Red Willow County16 of 335362.3%4.6 pCi/L
Dodge County17 of 3311662.1%5.0 pCi/L
Richardson County18 of 333461.8%5.1 pCi/L
Knox County19 of 334660.9%4.7 pCi/L
Nemaha County20 of 333259.4%5.7 pCi/L
Pierce County21 of 335556.4%5.0 pCi/L
Buffalo County22 of 3317355.5%4.2 pCi/L
Dodge County radon tests by year, against Nebraska's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNebraska, pooledChange from the row before
202311662.1%5.0 pCi/L48.0 pCi/L38.2%+22.6 points
202215739.5%2.9 pCi/L27.3 pCi/L34.0%+4.9 points
202147734.6%2.7 pCi/L18.8 pCi/L34.9%−19.5 points
202065454.1%4.2 pCi/L30.4 pCi/L42.2%+3.5 points
201977150.6%4.0 pCi/L36.0 pCi/L44.3%+5.4 points
201884945.2%3.8 pCi/L132.0 pCi/L44.5%−4.1 points
20171,26649.3%3.9 pCi/L31.6 pCi/L47.7%+0.5 points
20161,50648.8%3.8 pCi/L36.6 pCi/L47.4%Level
20151,24248.8%3.8 pCi/L24.4 pCi/L53.3%+1.4 points
201499947.4%3.7 pCi/L33.3 pCi/L50.5%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Dodge County, Geology

The ground under Dodge County

Predicted

USGS's geologic map puts all of Dodge County's mapped land in one class: high radon potential. All of it lies in the area the map calls Pre-Wisconsin glacial deposits, to which USGS gives a radon index of 13, in the high band (12 to 17).

USGS's geologic areas under Dodge County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Pre-Wisconsin glacial depositsLoess-mantled glacial drift.High13100%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Dodge County beside the ground around it

Dodge County has more high-potential ground than Nebraska as a whole: 100% of its land against 40.9%. Of the 7 counties that border it, none has as large a share of high-potential ground; Colfax County comes nearest at 100%.

Share of land by USGS radon potential: Dodge County, the 7 counties bordering it and Nebraska
AreaEPA zoneLow potentialModerate potentialHigh potential
Dodge CountyZone 1NoneNone100%
Cuming CountyZone 1NoneNone100%
Colfax CountyZone 1NoneNone100%
Washington CountyZone 1NoneNone100%
Burt CountyZone 1NoneNone100%
Saunders CountyZone 1NoneNone100%
Douglas CountyZone 1NoneNone100%
Butler CountyZone 1None0.1%99.9%
Nebraska93 counties, pooled by land areaVaries28.2%30.9%40.9%

The map rates the ground, not the air in any home.

Local help

Dodge County, Local resources

Radon testing and mitigation in Dodge County

Listed radon businesses with an address in Dodge County:

Listed radon professionals by town: Fremont

What Nebraska's program says
Phone
(402) 471-1005
Licensing of radon professionals
If radon testing is done in schools, offices, or other places of work, it must be done by a licensed radon measurement business.

What it means

Dodge County, Questions

Questions about radon in Dodge County

Are radon levels high in Dodge County?

In 2023, 62.1% of the radon tests reported to CDC for Dodge County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 5.0 pCi/L. Of 33 Nebraska counties with 30 or more tests for the same period, 16 reported a higher share; pooled, the state comes to 38.2%.

Which counties border Dodge County?

Dodge County borders 7 counties: Cuming County, Colfax County, Washington County, Burt County, Saunders County, Douglas County and Butler County.

Products

Dodge County, Products

Testing a home in Dodge County

In Dodge County, 62.1% of 116 tests reported to CDC in 2023 reached 4 pCi/L, against 38.2% pooled across Nebraska. In Zone 1 the year-round level in Dodge County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.

Test kits and monitors3

See every kit and monitor

Dodge County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Dodge County

Explore

Dodge County, Bordering counties

Counties bordering Dodge County

Calculated by Radon411

Dodge County, Cities and towns

Cities and towns in Dodge County

The Census Bureau estimates 38,057 residents in Dodge County for July 1, 2025, 958 more than in 2020 (+2.6%). That works out to 72 people per square mile of land. Fremont alone is home to 28,350 of them, 74.5% of the total. Together its 10 incorporated places hold 86.6% of those residents; the other 13.4% live outside any of them. Reported testing is thin here: 116 tests over 2023, or 3.0 for every 1,000 residents (2025 estimate), where Nebraska as a whole comes to 5.5.

From Fremont to Winslow, CDC publishes no figure by town: each reads Dodge County's.

The cities and towns in Dodge County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Fremont28,350+4.6%74.5%
North Bend1,263−0.7%3.3%
Scribner814−3.3%2.1%
Hooper793−7.7%2.1%
Dodge585−3.6%1.5%
Inglewood369−3.1%1.0%
Nickerson307−1.0%0.8%
Snyder244−3.6%0.6%
Uehling227−4.2%0.6%
Winslow20−4.8%Under 0.1%

10 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

Dodge County, Homes

Homes in Dodge County

Of Dodge County's 16,553 homes, 74% are detached houses, against 72% across Nebraska; 11% are in buildings of five or more homes. The homes are older than Nebraska's as a whole: half were built before 1966 (1975 for Nebraska), and 42% date from before 1960. 67% of occupied homes are lived in by their owner (Nebraska: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Dodge County, Nebraska, 2019 to 2023
HomesDodge CountyNebraska
Housing units16,553855,631
Detached houses74%72%
In buildings of 5 or more11%17%
Mobile homes5%3%
Built before 196042%32%
Built since 200015%22%
Middle year built19661975
Owner-occupied67%67%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.