Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Blaine County, Oklahoma
EPA puts Blaine 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, 62 miles
- Oklahoma
- 8.9%
- Oklahoma
- 12.6%
Share at 4+ pCi/L, 135 tests, 2006 to 2015
Ground above low
None
15.2 pts below Oklahoma
- Blaine
- 0.0%
- 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 Blaine 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
Blaine County, At a glance
Blaine 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
No CDC test figures here
CDC has published no radon test figures for Blaine County. Oklahoma County, 62 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Blaine County, Compared
Blaine County radon figures, compared
Calculated by Radon411Blaine County has no radon test figure of its own from CDC, whose counts over the 2006 to 2015 laboratory totals name 53 other Oklahoma counties and leave it out. 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 (62 miles away) at 8.9%, Tulsa County (141 miles away) at 6.0% and Washington County (153 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 Blaine 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.
Blaine County, Geology
The ground under Blaine County
PredictedUSGS's geologic map puts all of Blaine 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.
Blaine County beside the ground around it
Across Oklahoma 0.6% of the land is rated high; none of Blaine County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Dewey County the most at 2.2%.
The map rates the ground, not the air in any home.
Local help
Blaine County, Local resources
Radon testing and mitigation in Blaine 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
Blaine County, Questions
Questions about radon in Blaine County
Are radon levels high in Blaine County?
No CDC testing statistics are published here for Blaine County, Oklahoma yet. Of the 5 nearest counties with a figure, within 206 miles, the share of tests at or above 4 pCi/L runs from 6.0% to 44.7%.
Which counties border Blaine County?
Blaine County borders 6 counties: Kingfisher County, Major County, Canadian County, Dewey County, Custer County and Caddo County.
Products
Blaine County, Products
Testing a home in Blaine County
No CDC figure names Blaine County; the nearest county with one, Oklahoma County (62 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 Blaine 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
MonitorSafetySiren
Pro4 plug-in radon detector with a display and alarm
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 48 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Blaine County, Bordering counties
Counties bordering Blaine 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 Canadian CountyEPA zone 3
19.0%at or above 4 pCi/L
Median 0.6 pCi/L · 21 tests
- Radon levels in Kingfisher CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 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 Custer CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 2.3 pCi/L · 2 tests
- Radon levels in Caddo CountyEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Blaine County, Cities and towns
Cities and towns in Blaine County
About 8,515 people live in Blaine County by the Census Bureau's estimate for July 1, 2025, 189 fewer than in 2020 (−2.2%). Spread over its land, that is 9.2 people to the square mile. Its largest town, Watonga, has 2,594 residents, 30.5% of the total. CDC publishes no radon test count for Blaine County; across Oklahoma its counts for 2006 to 2015 come to 0.2 tests for every 1,000 residents (2025 estimate).
From Watonga to Hitchcock, CDC publishes no figure by town: each reads Blaine County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Watonga | 2,594 | −3.3% | 30.5% |
| Okeene | 1,047 | −3.1% | 12.3% |
| Gearyextends beyond Blaine County | 983 | −1.2% | Counted whole |
| Hydroextends beyond Blaine County | 901 | −2.6% | Counted whole |
| Canton | 450 | −3.0% | 5.3% |
| Longdale | 181 | −0.5% | 2.1% |
| Greenfield | 113 | −2.6% | 1.3% |
| Hitchcock | 99 | −1.0% | 1.2% |
8 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). A place that extends beyond Blaine County is counted whole, so it has no share.
Blaine County, Homes
Homes in Blaine County
Blaine County is a place of houses on their own lots: 79% of its 4,590 homes are detached single-family houses, against 73% across Oklahoma. The homes are older than Oklahoma's as a whole: half were built before 1972 (1980 for Oklahoma), and 33% date from before 1960. 71% 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 | Blaine County | Oklahoma |
|---|---|---|
| Housing units | 4,590 | 1,763,036 |
| Detached houses | 79% | 73% |
| In buildings of 5 or more | 3% | 12% |
| Mobile homes | 15% | 9% |
| Built before 1960 | 33% | 21% |
| Built since 2000 | 11% | 25% |
| Middle year built | 1972 | 1980 |
| Owner-occupied | 71% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.