Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Arthur County, Nebraska
EPA puts Arthur County in Zone 3, its lowest radon zone, and only 6 radon tests from it are on file with CDC (2019). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
55.0%
Keith County
- Keith
- 55.0%
- Garden
- 37.5%
2 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
55.0%
Keith County, 26 miles
- Keith
- 55.0%
- Nebraska
- 58.5%
Share at 4+ pCi/L, 120 tests, 2008 to 2017
Ground above low
None
71.8 pts below Nebraska
- Arthur
- 0.0%
- Nebraska
- 71.8%
Share of land USGS rates moderate or high potential
Tests reported
9
Too few for a share
- Arthur
- 9
- Needed
- 30
2014
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 Arthur 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
Arthur County, At a glance
Arthur County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Arthur County, 2019
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2019 | 0.0% |
2019: 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 6 tests were reported to CDC for Arthur County over 2019, 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: 2019. Measured data period: 2005 to 2019 (every CDC figure on file).
Arthur County, Compared
Arthur County radon figures, compared
Calculated by Radon411CDC's largest figure for Arthur County rests on 9 tests in 2014, 0 of them at or above 4 pCi/L, so each test moves its share by 11.1 points and no rank or comparison is drawn from it. Results reached as high as 3.0 pCi/L, with a middle value of 2.6 pCi/L.
Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Keith County reported the largest share at or above 4 pCi/L, 55.0%, and Garden County the smallest, 37.5%. Farther out, Deuel County (46 miles away) at 42.9%, Perkins County (50 miles away) at 50.0% and Lincoln County (61 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 Arthur County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Arthur County, Geology
The ground under Arthur County
PredictedUSGS's geologic map puts all of Arthur County's mapped land in one class: low radon potential. All 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 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Arthur County beside the ground around it
Across Nebraska 40.9% of the land is rated high; none of Arthur County's is. Of the 5 counties that border it, 1 has more high-potential ground, Keith County the most at 1.8%.
The map rates the ground, not the air in any home.
Local help
Arthur County, Local resources
Radon testing and mitigation in Arthur 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
Arthur County, Questions
Questions about radon in Arthur County
Are radon levels high in Arthur County?
In 2019, 0.0% of the radon tests reported to CDC for Arthur County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.1 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Keith County reported the largest share at or above 4 pCi/L, 55.0%, and Garden County the smallest, 37.5%.
Which counties border Arthur County?
Arthur County borders 5 counties: Grant County, Keith County, Garden County, McPherson County and Hooker County.
Products
Arthur County, Products
Testing a home in Arthur County
No CDC figure names Arthur County; the nearest county with one, Keith County (26 miles away), reported 55.0% 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 Arthur County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
RM-65 rechargeable radon detector with a color screen and alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Arthur County, Bordering counties
Counties bordering Arthur County
Calculated by Radon411- Radon levels in Keith CountyEPA zone 2
55.0%at or above 4 pCi/L
Median 4.3 pCi/L · 120 tests
- Radon levels in Garden CountyEPA zone 3
37.5%at or above 4 pCi/L
Median 3.5 pCi/L · 56 tests
- Radon levels in Grant CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 4 tests
- Radon levels in McPherson CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 10 tests
- Radon levels in Hooker CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 3 tests
Arthur County, Cities and towns
Cities and towns in Arthur County
Arthur County has been losing residents: from 430 in 2020 to 396 on July 1, 2025, a fall of 7.9% by the Census Bureau's estimates. Spread over its land, that is 0.6 people to the square mile. Arthur, its one incorporated place, has 119 residents, 30.1% of the total. CDC's 9 reported tests for 2014 work out to 22.7 per 1,000 residents (2025 estimate), close to Nebraska's 28.0.
Arthur is the one incorporated place here; CDC publishes no figure by town, so it reads Arthur County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Arthur | 119 | −7.0% | 30.1% |
One incorporated place, 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).
Arthur County, Homes
Homes in Arthur County
Arthur County is a place of houses on their own lots: 90% of its 230 homes are detached single-family houses, against 72% across Nebraska. Half of its homes were built before 1971, close to Nebraska's 1975: 45% date from before 1960 and 20% from 2000 or later. 74% 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 | Arthur County | Nebraska |
|---|---|---|
| Housing units | 230 | 855,631 |
| Detached houses | 90% | 72% |
| In buildings of 5 or more | 0% | 17% |
| Mobile homes | 10% | 3% |
| Built before 1960 | 45% | 32% |
| Built since 2000 | 20% | 22% |
| Middle year built | 1971 | 1975 |
| Owner-occupied | 74% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.