
Short-term kit![]()
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
EPA puts Kingfisher County in Zone 3, its lowest radon zone, and only 2 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
8.9%
Oklahoma County
1 of 6 neighbours have 30+ tests, 2006 to 2015
Nearest county
8.9%
Oklahoma County, 41 miles
Share at 4+ pCi/L, 135 tests, 2006 to 2015
Ground above low
None
15.2 pts below Oklahoma
Share of land USGS rates moderate or high potential
Tests reported
2
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Kingfisher County
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
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
Kingfisher County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 2 reported tests for Kingfisher County over the 2008 to 2017 laboratory totals, with a median of 1.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Kingfisher County beside the counties around it is how this page reads it.
Only 2 tests were reported to CDC for Kingfisher 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).
Kingfisher County, Compared
CDC's largest figure for Kingfisher County rests on 2 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 50.0 points and no rank or comparison is drawn from it. Results reached as high as 1.8 pCi/L, with a middle value of 1.2 pCi/L.
Oklahoma County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 8.9% of its tests at or above 4 pCi/L. Farther out, Tulsa County (113 miles away) at 6.0%, Washington County (125 miles away) at 11.3% and Cherokee County (165 miles away) at 32.0% 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 Kingfisher 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.
Kingfisher County, Geology
USGS's geologic map puts all of Kingfisher 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.
Across Oklahoma 0.6% of the land is rated high; none of Kingfisher County's is. None of the 6 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Kingfisher County, Local resources
What it means
Kingfisher County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Kingfisher County, Oklahoma were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.2 pCi/L. Oklahoma County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 8.9% of its tests at or above 4 pCi/L.
Kingfisher County borders 6 counties: Garfield County, Logan County, Blaine County, Canadian County, Major County and Oklahoma County.
Products
Kingfisher County, Products
No CDC figure names Kingfisher County; the nearest county with one, Oklahoma County (41 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 Kingfisher County.
Test kits and monitors: 1 of 3
Explore
Kingfisher County, Bordering counties
19.0%at or above 4 pCi/L
Median 0.6 pCi/L · 21 tests
8.9%at or above 4 pCi/L
Median 0.9 pCi/L · 135 tests
0.0%at or above 4 pCi/L
Median 2.0 pCi/L · 7 tests
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 6 tests
0.0%at or above 4 pCi/L
Median 2.7 pCi/L · 2 tests
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Kingfisher County, Cities and towns
The Census Bureau estimates 15,795 residents in Kingfisher County for July 1, 2025, 625 more than in 2020 (+4.1%). That works out to 18 people per square mile of land. Piedmont, the largest place on its list (9,427 residents in all), extends beyond Kingfisher County, so no share of the total is worked out for it. Reported testing is thin here: 2 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 Piedmont to Loyal, CDC publishes no figure by town: each reads Kingfisher County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Piedmontextends beyond Kingfisher County | 9,427 | +25.9% | Counted whole |
| Kingfisher | 5,201 | +5.7% | 32.9% |
| Hennessey | 2,207 | +3.1% | 14.0% |
| Okarcheextends beyond Kingfisher County | 1,196 | +4.9% | Counted whole |
| Cashionextends beyond Kingfisher County | 971 | +12.9% | Counted whole |
| Dover | 410 | +2.5% | 2.6% |
| Loyal | 70 | +2.9% | 0.4% |
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). A place that extends beyond Kingfisher County is counted whole, so it has no share.
Kingfisher County, Homes
Of Kingfisher County's 6,426 homes, 75% are detached houses, against 73% across Oklahoma; 17% are mobile homes. Half of its homes were built before 1977, close to Oklahoma's 1980: 27% date from before 1960 and 24% 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 | Kingfisher County | Oklahoma |
|---|---|---|
| Housing units | 6,426 | 1,763,036 |
| Detached houses | 75% | 73% |
| In buildings of 5 or more | 4% | 12% |
| Mobile homes | 17% | 9% |
| Built before 1960 | 27% | 21% |
| Built since 2000 | 24% | 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.