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 Lincoln County, Oregon
EPA puts Lincoln County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 8.3% of 36 (2023) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
8.3%
10.6 pts below OR
- Lincoln
- 8.3%
- Oregon
- 18.9%
36 tests, 2023
Median result
1.1pCi/L
Below action level
- Lincoln
- 1.1 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
36
11th of 14 by tests
- Lincoln
- 36
- Multnomah
- 792
Reported to CDC before any fix, 2023
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Oregon
12 of 14
Lowest quarter
- Lincoln
- 8.3%
- Hood River
- 39.0%
By share, of 14 with 30+ tests
Read a result for Lincoln County
Starts at Lincoln County's median, 1.1 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.1 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Lincoln County's median reported result, 2023.
The data
Lincoln County, At a glance
Lincoln 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 Lincoln County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 9.1% |
| 2015 | 17.6% |
| 2016 | 3.4% |
| 2017 | 14.3% |
| 2018 | 25.0% |
| 2019 | 0.0% |
| 2020 | 21.1% |
| 2021 | 9.4% |
| 2022 | 0.0% |
| 2023 | 8.3% |
2023: 8.3%. Across these years the share ran from 0.0% to 25.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 36 tests reported to CDC for Lincoln 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).
Lincoln County, Compared
Lincoln County radon figures, compared
Calculated by Radon411Lincoln County reports fewer high tests than Oregon overall. 8.3% of its 36 tests in 2023 were at or above 4 pCi/L. That is 10.6 points below the 18.9% pooled from 28 Oregon counties.
Ordered from highest share down, it comes 12th of 14 Oregon counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 33.4%; Lincoln County sits 25.1 points below it.
Next door, the shares run from 10.1% in Polk County to 15.6% in Benton County. Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 8.3% share point the same way here.
Half the tests came in under 1.1 pCi/L and half over it; the single highest reached 34.4 pCi/L. The rest split 86.1% under 2 pCi/L and 5.6% from 2 to 4 (Oregon: 59.5% and 21.6%). Year by year, 2019 opened at 0.0% and 2023 closed at 8.3% (up 8.3 points), with 2020 the high at 21.1%.
The busiest year on file was 2020, with 57 tests reported; the quietest, 2022, had 3.
Lincoln CountyOregon, pooled
8.3% % of tests18.9% % of tests
| Year | Tests | Lincoln County, at or above 4 pCi/L | Oregon, pooled |
|---|---|---|---|
| 2019 | 30 | 0.0% | 20.2% |
| 2020 | 57 | 21.1% | 16.8% |
| 2021 | 32 | 9.4% | 16.3% |
| 2023 | 36 | 8.3% | 18.9% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Lincoln County, Geology
The ground under Lincoln County
PredictedUSGS's geologic map puts all of Lincoln County's mapped land in one class: low radon potential. 98.9% of it lies in the area the map calls Coast Range, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coast Range | Northern Coast Range is marine sedimentary rocks and Tertiary mafic volcanic rocks. Southern Coast Range is Tertiary estuarine and marine sedimentary rocks, feldspathic and micaceous. | Low | 7 | 98.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Lincoln County beside the ground around it
Across Oregon 62.3% of the land is rated moderate; none of Lincoln County's is. Of the 4 counties that border it, 3 have more moderate-potential ground, Polk County the most at 28.1%.
The map rates the ground, not the air in any home.
Local help
Lincoln County, Local resources
Radon testing and mitigation in Lincoln 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
Lincoln County, Questions
Questions about radon in Lincoln County
Are radon levels high in Lincoln County?
In 2023, 8.3% of the radon tests reported to CDC for Lincoln County, Oregon were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of 14 Oregon counties with 30 or more tests for the same period, 11 reported a higher share; pooled, the state comes to 18.9%.
Which counties border Lincoln County?
Lincoln County borders 4 counties: Polk County, Benton County, Tillamook County and Lane County.
Products
Lincoln County, Products
Testing a home in Lincoln County
In Lincoln County, 8.3% of 36 tests reported to CDC in 2023 reached 4 pCi/L, against 18.9% pooled across Oregon. 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 Lincoln 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
MonitorAEGTEST
HOUND-3786 rechargeable radon monitor with a 3.5-inch color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Lincoln County, Bordering counties
Counties bordering Lincoln County
Calculated by Radon411- Radon levels in Benton CountyEPA zone 3
15.6%at or above 4 pCi/L
Median 0.9 pCi/L · 32 tests · 7.3 points above Lincoln County
- Radon levels in Lane CountyEPA zone 3
15.5%at or above 4 pCi/L
Median 1.0 pCi/L · 58 tests · 7.2 points above Lincoln County
- Radon levels in Polk CountyEPA zone 3
10.1%at or above 4 pCi/L
Median 1.4 pCi/L · 79 tests · 1.8 points above Lincoln County
- Radon levels in Tillamook CountyEPA zone 3
9.1%at or above 4 pCi/L
Median 1.5 pCi/L · 11 tests · 0.8 points above Lincoln County
Lincoln County, Cities and towns
Cities and towns in Lincoln County
Lincoln County's population has barely moved since 2020: 50,636 residents on July 1, 2025 against 50,509 then, by the Census Bureau's estimates. That works out to 52 people per square mile of land. Its largest town, Newport, has 10,383 residents, 20.5% of the total. Together its 7 incorporated places hold 59.2% of those residents; the other 40.8% live outside any of them. CDC's 36 reported tests for 2023 work out to 0.7 per 1,000 residents (2025 estimate), close to Oregon's 0.5.
From Newport to Yachats, CDC publishes no figure by town: each reads Lincoln County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Newport | 10,383 | +0.8% | 20.5% |
| Lincoln City | 10,117 | +2.8% | 20.0% |
| Toledo | 3,473 | −2.0% | 6.9% |
| Waldport | 2,268 | −0.2% | 4.5% |
| Depoe Bay | 1,533 | +1.5% | 3.0% |
| Siletz | 1,213 | −1.8% | 2.4% |
| Yachats | 1,013 | +1.3% | 2.0% |
7 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).
Lincoln County, Homes
Homes in Lincoln County
Of Lincoln County's 32,373 homes, 66% are detached houses, against 63% across Oregon; 15% are mobile homes. Half of its homes were built before 1981, close to Oregon's 1980: 22% date from before 1960 and 21% from 2000 or later. 71% 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 | Lincoln County | Oregon |
|---|---|---|
| Housing units | 32,373 | 1,838,631 |
| Detached houses | 66% | 63% |
| In buildings of 5 or more | 9% | 17% |
| Mobile homes | 15% | 8% |
| Built before 1960 | 22% | 23% |
| Built since 2000 | 21% | 24% |
| Middle year built | 1981 | 1980 |
| Owner-occupied | 71% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.