Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Osage County, Oklahoma
EPA puts Osage County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
11.3%
Washington County
- Washington
- 11.3%
- Tulsa
- 6.0%
2 of 7 neighbours have 30+ tests, 2006 to 2015
Nearest county
11.3%
Washington County, 28 miles
- Washington
- 11.3%
- Oklahoma
- 12.6%
Share at 4+ pCi/L, 53 tests, 2006 to 2015
Ground above low
None
15.2 pts below Oklahoma
- Osage
- 0.0%
- Oklahoma
- 15.2%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- Osage
- 3
- Needed
- 30
2008 to 2017, laboratory
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 Osage 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
Osage County, At a glance
Osage 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 Osage County, 2008 to 2017, laboratory
CDC holds 3 reported tests for Osage County over the 2008 to 2017 laboratory totals, with a median of 0.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Osage County beside the counties around it is how this page reads it.
What these figures count
Only 3 tests were reported to CDC for Osage County over 2008 to 2017 (laboratory totals), 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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Osage County, Compared
Osage County radon figures, compared
Calculated by Radon411CDC's largest figure for Osage County rests on 3 tests over the 2008 to 2017 laboratory totals, 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 3.1 pCi/L, with a middle value of 0.9 pCi/L.
Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: Washington County reported the largest share at or above 4 pCi/L, 11.3%, and Tulsa County the smallest, 6.0%. Farther out, Delaware County (90 miles away) at 44.7%, Cherokee County (93 miles away) at 32.0% and Oklahoma County (93 miles away) at 8.9% have figures too. Pooled across 53 Oklahoma counties, 12.6% of reported tests reached that level; across every county in the country with a figure, 36.3%.
Statewide for the same period, Delaware County reported the highest share (44.7%) and Tulsa County the lowest (6.0%). EPA's 1993 map puts Osage 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.
Osage County, Geology
The ground under Osage County
PredictedUSGS's geologic map puts all of Osage County's mapped land in one class: low radon potential. All of it lies in the area the map calls Central Oklahoma Plains and Hills, 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 |
|---|---|---|---|---|
| Central Oklahoma Plains and Hills | Nonmarine Permian and Tertiary rocks, including shale, sandstone, and conglomerate in the western part, and Mississippian and Pennsylvanian rocks in the eastern part. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Osage County beside the ground around it
Across Oklahoma 0.6% of the land is rated high; none of Osage County's is. Of the 7 counties that border it, 2 have more moderate-potential ground, Cowley County, KS the most at 99.8%.
The map rates the ground, not the air in any home.
Local help
Osage County, Local resources
Radon testing and mitigation in Osage County
- Oklahoma's radon programDepartment of Environmental QualityOklahoma's radon program answers questions about testing, mitigation and the rules in Oklahoma.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Oklahoma directoryNo professionals are listed in Oklahoma yet. The state program can point you to registered testers and mitigators.
What it means
Osage County, Questions
Questions about radon in Osage County
Are radon levels high in Osage County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Osage County, Oklahoma were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: Washington County reported the largest share at or above 4 pCi/L, 11.3%, and Tulsa County the smallest, 6.0%.
Which counties border Osage County?
Osage County borders 7 counties: Pawnee County, OK, Washington County, OK, Tulsa County, OK, Chautauqua County, KS, Kay County, OK, Cowley County, KS and Noble County, OK.
Products
Osage County, Products
Testing a home in Osage County
No CDC figure names Osage County; the nearest county with one, Washington County (28 miles away), reported 11.3% of its tests at or above 4 pCi/L over the 2006 to 2015 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 Osage 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
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Osage County, Bordering counties
Counties bordering Osage County
Calculated by Radon411- Radon levels in Kay County, OKEPA zone 3
27.6%at or above 4 pCi/L
Median 2.5 pCi/L · 29 tests
- Radon levels in Washington County, OKEPA zone 3
11.3%at or above 4 pCi/L
Median 1.9 pCi/L · 53 tests
- Radon levels in Tulsa County, OKEPA zone 3
6.0%at or above 4 pCi/L
Median 0.9 pCi/L · 300 tests
- Radon levels in Noble County, OKEPA zone 3
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 1 test
- Radon levels in Pawnee County, OKEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Chautauqua County, KSEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Cowley County, KSEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Osage County, Cities and towns
Cities and towns in Osage County
The Census Bureau estimates 46,794 residents in Osage County for July 1, 2025, 995 more than in 2020 (+2.2%). That works out to 21 people per square mile of land. Tulsa, the largest place on its list (416,209 residents in all), extends beyond Osage County, so no share of the total is worked out for it. Reported testing is thin here: 3 tests over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Oklahoma as a whole comes to 0.2.
From Tulsa to Foraker, CDC publishes no figure by town: each reads Osage County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Tulsaextends beyond Osage County | 416,209 | +0.6% | Counted whole |
| Bartlesvilleextends beyond Osage County | 38,278 | +2.5% | Counted whole |
| Sand Springsextends beyond Osage County | 20,397 | +2.3% | Counted whole |
| Skiatookextends beyond Osage County | 8,960 | +5.4% | Counted whole |
| Hominy | 3,293 | −0.9% | 7.0% |
| Pawhuska | 2,923 | −1.8% | 6.2% |
| Sperryextends beyond Osage County | 1,241 | +4.8% | Counted whole |
| Fairfax | 1,106 | −2.1% | 2.4% |
| Barnsdall | 974 | −5.5% | 2.1% |
| Prue | 399 | +5.8% | 0.9% |
| Wynona | 389 | +6.0% | 0.8% |
| Shidler | 333 | +3.1% | 0.7% |
- Avant
- Osage
- Burbank
- Webb City
- Grainola
- Foraker
18 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025). A place that extends beyond Osage County is counted whole, so it has no share.
Osage County, Homes
Homes in Osage County
Osage County is a place of houses on their own lots: 77% of its 19,801 homes are detached single-family houses, against 73% across Oklahoma. Half of its homes were built before 1980, close to Oklahoma's 1980: 23% date from before 1960 and 26% from 2000 or later. Owners live in 78% of the occupied homes (Oklahoma: 66%), so for most households a test and a fix are their own to order.
| Homes | Osage County | Oklahoma |
|---|---|---|
| Housing units | 19,801 | 1,763,036 |
| Detached houses | 77% | 73% |
| In buildings of 5 or more | 3% | 12% |
| Mobile homes | 15% | 9% |
| Built before 1960 | 23% | 21% |
| Built since 2000 | 26% | 25% |
| Middle year built | 1980 | 1980 |
| Owner-occupied | 78% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.