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 Woodward County, Oklahoma
EPA puts Woodward County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
8.9%
Oklahoma County, 120 miles
- Oklahoma
- 8.9%
- Oklahoma
- 12.6%
Share at 4+ pCi/L, 135 tests, 2006 to 2015
Ground above low
19.9%
4.7 pts above Oklahoma
- Woodward
- 19.9%
- Oklahoma
- 15.2%
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
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 Woodward 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
Woodward County, At a glance
Woodward County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 80% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
No CDC test figures here
CDC has published no radon test figures for Woodward County. Oklahoma County, 120 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Woodward County, Compared
Woodward County radon figures, compared
Calculated by Radon411CDC's county radon counts over the 2006 to 2015 laboratory totals cover 53 Oklahoma counties, and Woodward County is not among them: no year's figure and no ten-year laboratory total names it. Pooled across 53 Oklahoma counties, 12.6% of reported tests reached that level; across every county in the country with a figure, 36.3%.
The nearest counties with a figure are Oklahoma County (120 miles away) at 8.9%, Tulsa County (187 miles away) at 6.0% and Washington County (188 miles away) at 11.3%. 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 Woodward County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 80% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Woodward County, Geology
The ground under Woodward County
PredictedMost of the ground under Woodward County is one class on USGS's geologic map: 80.1% of its land is low radon potential, with 19.9% moderate. The map puts 80.1% of Woodward County in the area it calls Central Oklahoma Plains and Hills and 19.9% in High Plains. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).
| 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 | 80.1% |
| High Plains | Tertiary sandstone, siltstone, shale. | Moderate | 9 | 19.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Woodward County beside the ground around it
Across Oklahoma 0.6% of the land is rated high; none of Woodward County's is. Of the 5 counties that border it, 1 has more moderate-potential ground, Ellis County the most at 79.4%.
The map rates the ground, not the air in any home.
Local help
Woodward County, Local resources
Radon testing and mitigation in Woodward 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
Woodward County, Questions
Questions about radon in Woodward County
Are radon levels high in Woodward County?
No CDC testing statistics are published here for Woodward County, Oklahoma yet. Of the 5 nearest counties with a figure, within 249 miles, the share of tests at or above 4 pCi/L runs from 6.0% to 44.7%.
Which counties border Woodward County?
Woodward County borders 5 counties: Harper County, Ellis County, Dewey County, Woods County and Major County.
Products
Woodward County, Products
Testing a home in Woodward County
No CDC figure names Woodward County; the nearest county with one, Oklahoma County (120 miles away), reported 8.9% 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 Woodward 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
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
Woodward County, Bordering counties
Counties bordering Woodward County
Calculated by Radon411- Radon levels in Dewey CountyEPA zone 3
33.3%at or above 4 pCi/L
Median 3.3 pCi/L · 6 tests
- Radon levels in Woods CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.8 pCi/L · 1 test
- Radon levels in Major CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 2.7 pCi/L · 2 tests
- Radon levels in Harper CountyEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Ellis CountyEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Woodward County, Cities and towns
Cities and towns in Woodward County
About 19,827 people live in Woodward County by the Census Bureau's estimate for July 1, 2025, 574 fewer than in 2020 (−2.8%). That works out to 16 people per square mile of land. Woodward alone is home to 11,635 of them, 58.7% of the total. Together its 5 incorporated places hold 66.9% of those residents; the other 33.1% live outside any of them. CDC publishes no radon test count for Woodward County; across Oklahoma its counts for 2006 to 2015 come to 0.2 tests for every 1,000 residents (2025 estimate).
From Woodward to Mutual, CDC publishes no figure by town: each reads Woodward County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Woodward | 11,635 | −3.7% | 58.7% |
| Mooreland | 1,122 | −4.3% | 5.7% |
| Fort Supply | 314 | −2.8% | 1.6% |
| Sharon | 130 | Level | 0.7% |
| Mutual | 59 | −3.3% | 0.3% |
5 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).
Woodward County, Homes
Homes in Woodward County
Of Woodward County's 9,389 homes, 74% are detached houses, against 73% across Oklahoma; 15% are mobile homes. Half of its homes were built before 1977, close to Oklahoma's 1980: 24% date from before 1960 and 17% from 2000 or later. 72% of occupied homes are lived in by their owner (Oklahoma: 66%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Woodward County | Oklahoma |
|---|---|---|
| Housing units | 9,389 | 1,763,036 |
| Detached houses | 74% | 73% |
| In buildings of 5 or more | 7% | 12% |
| Mobile homes | 15% | 9% |
| Built before 1960 | 24% | 21% |
| Built since 2000 | 17% | 25% |
| Middle year built | 1977 | 1980 |
| Owner-occupied | 72% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.