
Short-term kit![]()
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
EPA puts Morrill County in Zone 2, its middle radon zone, and only 7 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
44.0%
6.5 pts below NE
75 tests, 2014
Median result
3.5pCi/L
Below action level
Midpoint of the tests, 2014
Tests reported
75
51st of 69 by tests
Reported to CDC before any fix, 2014
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Nebraska
50 of 69
Middle half
By share, of 69 with 30+ tests
Read a result for Morrill County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.5 pCi/L
Between 2 and 4 pCi/L
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Morrill County's median reported result, 2014.
The data
Morrill County, At a glance
Predicted: EPA radon zone
Morrill County is a
USGS geologic potential: Moderate across 59% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 44.0% |
| 2015 | 75.0% |
| 2016 | 44.4% |
| 2017 | 57.1% |
| 2018 | 50.0% |
| 2019 | 44.4% |
| 2020 | 42.9% |
| 2021 | 40.0% |
| 2022 | 0.0% |
| 2023 | 57.1% |
2023: 57.1%. Across these years the share ran from 0.0% to 75.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 7 tests were reported to CDC for Morrill County over 2023, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Morrill County, Compared
In Morrill County, about 4 in 10 reported tests in 2014 (33 of 75) were at or above EPA's action level. Against the national pool of 34.9%, the gap is 9.1 points higher. Across 85 Nebraska counties pooled together, 50.5% of tests reached that level, so Morrill County runs 6.5 points below its state.
The newest figure, in 2023, counts only 7 tests (57.1% at or above 4 pCi/L), too few to compare, so this reading uses the 75-test figure.
Of 4 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 2 a smaller one; the spread is 25.0% (Box Butte County) to 75.0% (Sheridan County). By share, Morrill County is 50th of 69 Nebraska counties with 30 or more tests for the same period.
Year by year, 2014 opened at 44.0% and 2018 closed at 50.0% (up 6.0 points), with 2015 the high at 75.0%. Half the tests came in under 3.5 pCi/L and half over it; the single highest reached 14.1 pCi/L. Below the action level, 15 tests (20.0%) came in under 2 pCi/L, against 23.6% statewide, and 27 tests (36.0%) fell between 2 and 4, against 25.8% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 44.0% share point the same way here. USGS geology rates 59% of the county's land moderate radon potential.
The busiest year on file was 2014, with 75 tests reported; the quietest, 2022, had 3.
| Year | Tests | Morrill County, at or above 4 pCi/L | Nebraska, pooled |
|---|---|---|---|
| 2014 | 75 | 44.0% | 50.5% |
| 2015 | 60 | 75.0% | 53.3% |
| 2017 | 42 | 57.1% | 47.7% |
| 2018 | 30 | 50.0% | 44.5% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Morrill County, Geology
USGS's geologic map splits Morrill County: 59.3% of its land is moderate radon potential and 40.7% low. The map puts 59.3% of Morrill County in the area it calls Tertiary Rocks and 40.7% in Sand Hills. USGS gives the first a radon index of 11, in the moderate band (9 to 11), and the second 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Tertiary Rocks | Tertiary sandstone, siltstone, and volcanic ash. | Moderate | 11 | 59.3% |
| Sand Hills | Quaternary windblown sand. | Low | 8 | 40.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Nebraska 40.9% of the land is rated high; none of Morrill County's is. Of the 6 counties that border it, 1 has more high-potential ground, Sheridan County the most at 0.3%.
The map rates the ground, not the air in any home.
Local help
Morrill County, Local resources
Some local programs distribute radon kits for free or a reduced cost.
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
Morrill County, Questions
In 2023, 57.1% of the radon tests reported to CDC for Morrill County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.7 pCi/L. Of 69 Nebraska counties with 30 or more tests for the same period, 49 reported a higher share; pooled, the state comes to 50.5%.
Morrill County borders 6 counties: Garden County, Scotts Bluff County, Box Butte County, Banner County, Cheyenne County and Sheridan County.
Products
Morrill County, Products
In Morrill County, 44.0% of 75 tests reported to CDC in 2014 reached 4 pCi/L, against 50.5% pooled across Nebraska. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Morrill County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Morrill County, Bordering counties
75.0%at or above 4 pCi/L
Median 5.0 pCi/L · 72 tests · 31.0 points above Morrill County
53.6%at or above 4 pCi/L
Median 4.1 pCi/L · 822 tests · 9.6 points above Morrill County
40.9%at or above 4 pCi/L
Median 3.5 pCi/L · 411 tests · 3.1 points below Morrill County
25.0%at or above 4 pCi/L
Median 3.0 pCi/L · 108 tests · 19.0 points below Morrill County
22.2%at or above 4 pCi/L
Median 2.1 pCi/L · 27 tests · 21.8 points below Morrill County
0.0%at or above 4 pCi/L
Median 3.1 pCi/L · 3 tests · 44.0 points below Morrill County
Morrill County, Cities and towns
About 4,404 people live in Morrill County by the Census Bureau's estimate for July 1, 2025, 150 fewer than in 2020 (−3.3%). Spread over its land, that is 3.1 people to the square mile. Its largest town, Bridgeport, has 1,421 residents, 32.3% of the total. Together its 3 incorporated places hold 59.2% of those residents; the other 40.8% live outside any of them. Reported testing is thin here: 75 tests over 2014, or 17.0 for every 1,000 residents (2025 estimate), where Nebraska as a whole comes to 28.0.
From Bridgeport to Broadwater, CDC publishes no figure by town: each reads Morrill County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Bridgeport | 1,421 | −2.7% | 32.3% |
| Bayard | 1,087 | −3.9% | 24.7% |
| Broadwater | 97 | −3.0% | 2.2% |
3 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).
Morrill County, Homes
Morrill County is a place of houses on their own lots: 87% of its 2,276 homes are detached single-family houses, against 72% across Nebraska. The homes are older than Nebraska's as a whole: half were built before 1958 (1975 for Nebraska), and 52% date from before 1960. Owners live in 78% of the occupied homes (Nebraska: 67%), so for most households a test and a fix are their own to order.
| Homes | Morrill County | Nebraska |
|---|---|---|
| Housing units | 2,276 | 855,631 |
| Detached houses | 87% | 72% |
| In buildings of 5 or more | 3% | 17% |
| Mobile homes | 7% | 3% |
| Built before 1960 | 52% | 32% |
| Built since 2000 | 6% | 22% |
| Middle year built | 1958 | 1975 |
| Owner-occupied | 78% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.