Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Nowata County, Oklahoma
EPA puts Nowata County in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2007 to 2016, 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%
1 of 5 neighbours have 30+ tests, 2006 to 2015
Nearest county
11.3%
Washington County, 17 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
- Nowata
- 0.0%
- Oklahoma
- 15.2%
Share of land USGS rates moderate or high potential
Tests reported
1
Too few for a share
- Nowata
- 1
- Needed
- 30
2007 to 2016, 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 Nowata 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
Nowata County, At a glance
Nowata 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 Nowata County, 2007 to 2016, laboratory
CDC holds 1 reported test for Nowata County over the 2007 to 2016 laboratory totals, a result of 0.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Nowata County beside the counties around it is how this page reads it.
What these figures count
Only 1 test was reported to CDC for Nowata County over 2007 to 2016 (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: 2007 to 2016, laboratory. Measured data period: 2005 to 2016 (every CDC figure on file).
Nowata County, Compared
Nowata County radon figures, compared
Calculated by Radon411CDC's largest figure for Nowata County rests on 1 test over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 100.0 points and no rank or comparison is drawn from it. Results reached as high as 0.2 pCi/L, with a middle value of 0.2 pCi/L.
Washington County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 11.3% of its tests at or above 4 pCi/L. Farther out, Tulsa County (50 miles away) at 6.0%, Delaware County (53 miles away) at 44.7% and Cherokee County (70 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 Nowata 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.
Nowata County, Geology
The ground under Nowata County
PredictedUSGS's geologic map puts all of Nowata 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.
Nowata County beside the ground around it
Across Oklahoma 0.6% of the land is rated high; none of Nowata County's is. Of the 5 counties that border it, 3 have more moderate-potential ground, Labette County, KS the most at 99.8%.
The map rates the ground, not the air in any home.
Local help
Nowata County, Local resources
Radon testing and mitigation in Nowata 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
Nowata County, Questions
Questions about radon in Nowata County
Are radon levels high in Nowata County?
Over the 2007 to 2016 laboratory totals, 0.0% of the radon tests reported to CDC for Nowata County, Oklahoma were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. Washington County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 11.3% of its tests at or above 4 pCi/L.
Which counties border Nowata County?
Nowata County borders 5 counties: Washington County, OK, Craig County, OK, Montgomery County, KS, Rogers County, OK and Labette County, KS.
Products
Nowata County, Products
Testing a home in Nowata County
No CDC figure names Nowata County; the nearest county with one, Washington County (17 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 Nowata County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorPYZYCKYH
RD17 plug-in radon detector with a rechargeable battery and color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Nowata County, Bordering counties
Counties bordering Nowata County
Calculated by Radon411- Radon levels in Craig County, OKEPA zone 3
33.3%at or above 4 pCi/L
Median 3.7 pCi/L · 3 tests
- Radon levels in Rogers County, OKEPA zone 3
11.8%at or above 4 pCi/L
Median 0.6 pCi/L · 17 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 Montgomery County, KSEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Labette County, KSEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Nowata County, Cities and towns
Cities and towns in Nowata County
The Census Bureau estimates 9,522 residents in Nowata County for July 1, 2025, 199 more than in 2020 (+2.1%). That works out to 17 people per square mile of land. Its largest town, Nowata, has 3,584 residents, 37.6% of the total. Together its 6 incorporated places hold 52.6% of those residents; the other 47.4% live outside any of them. Reported testing is thin here: 1 test over 2007 to 2016, or 0.1 for every 1,000 residents (2025 estimate), where Oklahoma as a whole comes to 0.2.
From Nowata to New Alluwe, CDC publishes no figure by town: each reads Nowata County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Nowata | 3,584 | +2.7% | 37.6% |
| South Coffeyville | 687 | +0.6% | 7.2% |
| Lenapah | 281 | +2.2% | 3.0% |
| Delaware | 272 | +1.5% | 2.9% |
| Wann | 96 | +2.1% | 1.0% |
| New Alluwe | 87 | Level | 0.9% |
6 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).
Nowata County, Homes
Homes in Nowata County
Of Nowata County's 4,383 homes, 74% are detached houses, against 73% across Oklahoma; 17% are mobile homes. Half of its homes were built before 1976, close to Oklahoma's 1980: 34% date from before 1960 and 19% from 2000 or later. 73% 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 | Nowata County | Oklahoma |
|---|---|---|
| Housing units | 4,383 | 1,763,036 |
| Detached houses | 74% | 73% |
| In buildings of 5 or more | 1% | 12% |
| Mobile homes | 17% | 9% |
| Built before 1960 | 34% | 21% |
| Built since 2000 | 19% | 25% |
| Middle year built | 1976 | 1980 |
| Owner-occupied | 73% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.