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
Radon Levels in Blaine County, Nebraska
EPA puts Blaine County in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
52.3%
Custer County
- Custer
- 52.3%
- Cherry
- 13.3%
3 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
41.9%
Brown County, 36 miles
- Brown
- 41.9%
- Nebraska
- 58.5%
Share at 4+ pCi/L, 62 tests, 2008 to 2017
Ground above low
0.8%
71.1 pts below Nebraska
- Blaine
- 0.8%
- Nebraska
- 71.8%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- Blaine
- 3
- Needed
- 30
2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Blaine County
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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.
The data
Blaine County, At a glance
Blaine County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 99% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Blaine County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2017 | 0.0% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 1 test was reported to CDC for Blaine 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).
Blaine County, Compared
Blaine County radon figures, compared
Calculated by Radon411CDC's largest figure for Blaine County rests on 3 tests in 2017, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 0.7 pCi/L, with a middle value of 0.7 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Custer County reported the largest share at or above 4 pCi/L, 52.3%, and Cherry County the smallest, 13.3%, with Brown County at 41.9% between. Farther out, Valley County (57 miles away) at 52.4%, Sherman County (71 miles away) at 48.4% and Lincoln County (72 miles away) at 27.0% have figures too. Pooled across 93 Nebraska counties, 58.5% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Clay County reported the highest share (85.1%) and Cherry County the lowest (13.3%). EPA's 1993 map puts Blaine County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 99% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Blaine County, Geology
The ground under Blaine County
PredictedMost of the ground under Blaine County is one class on USGS's geologic map: 99.2% of its land is low radon potential, with 0.8% moderate. 99.2% of it lies in the area the map calls Sand Hills, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Sand Hills | Quaternary windblown sand. | Low | 8 | 99.2% |
| Loess over Tertiary sediments | Tertiary bedrock covered by varying thicknesses of loess. | Moderate | 11 | 0.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Blaine County beside the ground around it
Across Nebraska 40.9% of the land is rated high; none of Blaine County's is. Of the 6 counties that border it, 5 have more moderate-potential ground, Custer County the most at 91.0%.
The map rates the ground, not the air in any home.
Local help
Blaine County, Local resources
Radon testing and mitigation in Blaine County
- Office of Environmental Health Hazards & Indoor AirOffice of Environmental Health Hazards & Indoor Air, run by Nebraska Department of Health and Human Services, licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Nebraska.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Some local programs distribute radon kits for free or a reduced cost.
- Compare kits
- Professionals in Nebraska116 professionals are listed in Nebraska.
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
Blaine County, Questions
Questions about radon in Blaine County
Are radon levels high in Blaine County?
In 2023, 0.0% of the radon tests reported to CDC for Blaine County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Custer County reported the largest share at or above 4 pCi/L, 52.3%, and Cherry County the smallest, 13.3%, with Brown County at 41.9% between.
Which counties border Blaine County?
Blaine County borders 6 counties: Loup County, Thomas County, Logan County, Custer County, Brown County and Cherry County.
Products
Blaine County, Products
Testing a home in Blaine County
No CDC figure names Blaine County; the nearest county with one, Brown County (36 miles away), reported 41.9% of its tests at or above 4 pCi/L over the 2008 to 2017 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Blaine County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorX-Sense
XR0A-iR Wi-Fi battery radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Wi-Fi
- Screen, app
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Blaine County, Bordering counties
Counties bordering Blaine County
Calculated by Radon411- Radon levels in Custer CountyEPA zone 2
52.3%at or above 4 pCi/L
Median 4.2 pCi/L · 132 tests
- Radon levels in Brown CountyEPA zone 3
41.9%at or above 4 pCi/L
Median 3.7 pCi/L · 62 tests
- Radon levels in Cherry CountyEPA zone 3
13.3%at or above 4 pCi/L
Median 1.7 pCi/L · 30 tests
- Radon levels in Logan CountyEPA zone 3
12.5%at or above 4 pCi/L
Median 2.3 pCi/L · 8 tests
- Radon levels in Thomas CountyEPA zone 3
11.1%at or above 4 pCi/L
Median 0.7 pCi/L · 9 tests
- Radon levels in Loup CountyEPA zone 3
6.7%at or above 4 pCi/L
Median 1.1 pCi/L · 15 tests
Blaine County, Cities and towns
Cities and towns in Blaine County
Blaine County is growing: the Census Bureau puts it at 458 residents on July 1, 2025, up 6.8% from 429 in 2020. Spread over its land, that is 0.6 people to the square mile. No town dominates: Dunning, the largest, has 85 residents, 18.6% of the total. Reported testing is thin here: 3 tests over 2017, or 6.6 for every 1,000 residents (2025 estimate), where Nebraska as a whole comes to 32.5.
From Dunning to Brewster, CDC publishes no figure by town: each reads Blaine County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Dunning | 85 | +6.3% | 18.6% |
| Halseyextends beyond Blaine County | 62 | −6.1% | Counted whole |
| Brewster | 9 | +12.5% | 2.0% |
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). A place that extends beyond Blaine County is counted whole, so it has no share.
Blaine County, Homes
Homes in Blaine County
Blaine County is a place of houses on their own lots: 82% of its 295 homes are detached single-family houses, against 72% across Nebraska. The homes are older than Nebraska's as a whole: half were built before 1959 (1975 for Nebraska), and 51% date from before 1960. 71% 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 | Blaine County | Nebraska |
|---|---|---|
| Housing units | 295 | 855,631 |
| Detached houses | 82% | 72% |
| In buildings of 5 or more | 0% | 17% |
| Mobile homes | 18% | 3% |
| Built before 1960 | 51% | 32% |
| Built since 2000 | 11% | 22% |
| Middle year built | 1959 | 1975 |
| Owner-occupied | 71% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.