Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Harney County, Oregon
EPA puts Harney County in Zone 2, its middle radon zone, and only 9 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
6.7%
Deschutes County
- Deschutes
- 6.7%
1 of 7 neighbours have 30+ tests, 2016
Nearest county
6.7%
Deschutes County, 128 miles
- Deschutes
- 6.7%
- Oregon
- 21.5%
Share at 4+ pCi/L, 45 tests, 2016
Ground above low
66.4%
4.1 pts above Oregon
- Harney
- 66.4%
- Oregon
- 62.3%
Share of land USGS rates moderate or high potential
Tests reported
13
Too few for a share
- Harney
- 13
- Needed
- 30
2021
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Harney 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
Harney County, At a glance
Harney County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Harney County is a
USGS geologic potential: Moderate across 66% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Harney County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2015 | 100.0% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2020 | 33.3% |
| 2021 | 0.0% |
| 2022 | 0.0% |
2022: 0.0%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 9 tests were reported to CDC for Harney County over 2022, 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: 2022. Measured data period: 2005 to 2022 (every CDC figure on file).
Harney County, Compared
Harney County radon figures, compared
Calculated by Radon411CDC's largest figure for Harney County rests on 13 tests in 2021, 0 of them at or above 4 pCi/L, so each test moves its share by 7.7 points and no rank or comparison is drawn from it. Results reached as high as 3.4 pCi/L, with a middle value of 0.5 pCi/L.
Deschutes County, the one bordering county with a figure in 2016, reported 6.7% of its tests at or above 4 pCi/L. Farther out, Union County (162 miles away) at 39.1%, Wasco County (181 miles away) at 10.0% and Linn County (204 miles away) at 9.4% have figures too. Pooled across 35 Oregon counties, 21.5% of reported tests reached that level; across every county in the country with a figure, 31.2%.
Statewide for the same period, Union County reported the highest share (39.1%) and Deschutes County the lowest (6.7%). EPA's 1993 map puts Harney County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 66% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Harney County, Geology
The ground under Harney County
PredictedUSGS's geologic map splits Harney County: 66.4% of its land is moderate radon potential and 33.6% low. The map puts 56.3% of Harney County in the area it calls Northern Basin and Range and 33.6% in High Lava Plains, with 3 smaller areas beside them. USGS gives the first a radon index of 9, in the moderate band (9 to 11), and the second 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Northern Basin and Range | Basalt, andesite, rhyolite, tuffaceous sedimentary rocks. Low soil uranium content in the western part, uranium-bearing volcanic rocks and uranium deposits in the eastern part of the province. | Moderate | 9 | 56.3% |
| High Lava Plains | Tertiary and Quaternary basalt flows and Tertiary silicic ash-flow tuff. | Low | 7 | 33.6% |
| Owyhee Upland | Tertiary and Quaternary basalt, andesite, and rhyolite. | Moderate | 9 | 6.9% |
| Blue Mountains | Tertiary basalt and andesite, tuffaceous sedimentary rocks, and tuff. | Moderate | 9 | 2.4% |
| Great Basin | Sandstone, shale, limestone, mafic volcanic rocks. | 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.
Harney County beside the ground around it
On moderate-potential ground Harney County is close to Oregon as a whole: 66.4% of its land against 62.3%. Of the 7 counties that border it, 2 have more high-potential ground, Humboldt County, NV the most at 25.2%.
The map rates the ground, not the air in any home.
Local help
Harney County, Local resources
Radon testing and mitigation in Harney County
- Oregon Radon Awareness ProgramOregon Radon Awareness Program, run by Oregon Health Authority, offers free or discounted test kits, and answers questions about testing and mitigation in Oregon.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Oregon Radon Awareness Program provides a FREE short-term radon test kit to those living in areas of Oregon where little radon testing has been done.
- Compare kits
- Professionals in Oregon38 professionals are listed in Oregon.
What Oregon's program says
- Radon.program@dhsoha.state.or.us
What it means
Harney County, Questions
Questions about radon in Harney County
Are radon levels high in Harney County?
In 2022, 0.0% of the radon tests reported to CDC for Harney County, Oregon were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.6 pCi/L. Deschutes County, the one bordering county with a figure in 2016, reported 6.7% of its tests at or above 4 pCi/L.
Which counties border Harney County?
Harney County borders 7 counties: Malheur County, OR, Lake County, OR, Crook County, OR, Grant County, OR, Humboldt County, NV, Deschutes County, OR and Washoe County, NV.
Products
Harney County, Products
Testing a home in Harney County
No CDC figure names Harney County; the nearest county with one, Deschutes County (128 miles away), reported 6.7% of its tests at or above 4 pCi/L in 2016, the only reading nearby until a test of this home. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Harney County; a long-term test tells the year-round average.
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
Wave Radon battery smart radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- App only
Method: Alpha spectrometry
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Harney County, Bordering counties
Counties bordering Harney County
Calculated by Radon411- Radon levels in Deschutes County, OREPA zone 3
6.7%at or above 4 pCi/L
Median 0.8 pCi/L · 45 tests
- Radon levels in Malheur County, OREPA zone 2
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 3 tests
- Radon levels in Lake County, OREPA zone 2
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 2 tests
- Radon levels in Crook County, OREPA zone 2
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 6 tests
- Radon levels in Grant County, OREPA zone 2
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 1 test
- Radon levels in Humboldt County, NVEPA zone 2
No CDC figure for 2016; its page reads it against its own neighbours.
- Radon levels in Washoe County, NVEPA zone 2
No CDC figure for 2016; its page reads it against its own neighbours.
Harney County, Cities and towns
Cities and towns in Harney County
About 7,380 people live in Harney County by the Census Bureau's estimate for July 1, 2025, 127 fewer than in 2020 (−1.7%). Spread over its land, that is 0.7 people to the square mile. Its largest town, Burns, has 2,692 residents, 36.5% of the total. Together its 2 incorporated places hold 58.3% of those residents; the other 41.7% live outside any of them. Testing is reported here more often than across the state: CDC's 13 reported tests for 2021 come to 1.8 for every 1,000 residents (2025 estimate), against 1.0 for Oregon.
From Burns to Hines, CDC publishes no figure by town: each reads Harney County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Burns | 2,692 | −1.5% | 36.5% |
| Hines | 1,610 | −2.3% | 21.8% |
2 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).
Harney County, Homes
Homes in Harney County
Of Harney County's 3,718 homes, 64% are detached houses, against 63% across Oregon; 22% are mobile homes. Half of its homes were built before 1974, close to Oregon's 1980: 35% date from before 1960 and 15% from 2000 or later. 67% of occupied homes are lived in by their owner (Oregon: 63%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Harney County | Oregon |
|---|---|---|
| Housing units | 3,718 | 1,838,631 |
| Detached houses | 64% | 63% |
| In buildings of 5 or more | 8% | 17% |
| Mobile homes | 22% | 8% |
| Built before 1960 | 35% | 23% |
| Built since 2000 | 15% | 24% |
| Middle year built | 1974 | 1980 |
| Owner-occupied | 67% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.