
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 Creek County in Zone 3, its lowest radon zone, and only 10 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
6.0%
Tulsa County
1 of 6 neighbours have 30+ tests, 2006 to 2015
Nearest county
6.0%
Tulsa County, 28 miles
Share at 4+ pCi/L, 300 tests, 2006 to 2015
Ground above low
None
15.2 pts below Oklahoma
Share of land USGS rates moderate or high potential
Tests reported
10
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 Creek 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
Creek 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 10 reported tests for Creek County over the 2008 to 2017 laboratory totals, with a median of 0.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Creek County beside the counties around it is how this page reads it.
Only 10 tests were reported to CDC for Creek 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).
Creek County, Compared
CDC's largest figure for Creek County rests on 10 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 10.0 points and no rank or comparison is drawn from it. Results reached as high as 2.5 pCi/L, with a middle value of 0.8 pCi/L.
Tulsa County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 6.0% of its tests at or above 4 pCi/L. Farther out, Washington County (62 miles away) at 11.3%, Oklahoma County (63 miles away) at 8.9% and Cherokee County (77 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 Creek 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.
Creek County, Geology
USGS's geologic map puts all of Creek 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 Creek 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
Creek County, Local resources
What it means
Creek County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Creek County, Oklahoma were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.8 pCi/L. Tulsa County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 6.0% of its tests at or above 4 pCi/L.
Creek County borders 6 counties: Tulsa County, Okmulgee County, Okfuskee County, Lincoln County, Payne County and Pawnee County.
Products
Creek County, Products
No CDC figure names Creek County; the nearest county with one, Tulsa County (28 miles away), reported 6.0% 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 Creek County.
Test kits and monitors: 1 of 3
Explore
Creek County, Bordering counties
6.3%at or above 4 pCi/L
Median 0.8 pCi/L · 16 tests
6.0%at or above 4 pCi/L
Median 0.9 pCi/L · 300 tests
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 3 tests
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 5 tests
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Creek County, Cities and towns
The Census Bureau estimates 74,967 residents in Creek County for July 1, 2025, 3,124 more than in 2020 (+4.3%). That works out to 79 people per square mile of land. Sapulpa, the largest place on its list (23,695 residents in all), extends beyond Creek County, so no share of the total is worked out for it. CDC's 10 reported tests for 2008 to 2017 work out to 0.1 per 1,000 residents (2025 estimate), close to Oklahoma's 0.2.
From Sapulpa to Lawrence Creek, CDC publishes no figure by town: each reads Creek County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Sapulpaextends beyond Creek County | 23,695 | +8.1% | Counted whole |
| Bristow | 4,381 | +3.0% | 5.8% |
| Mannfordextends beyond Creek County | 3,432 | +5.5% | Counted whole |
| Stroudextends beyond Creek County | 2,913 | +6.5% | Counted whole |
| Drumrightextends beyond Creek County | 2,546 | −0.4% | Counted whole |
| Kiefer | 2,310 | +6.1% | 3.1% |
| Kellyville | 1,052 | +2.6% | 1.4% |
| Moundsextends beyond Creek County | 999 | +7.3% | Counted whole |
| Oilton | 904 | +2.1% | 1.2% |
| Depew | 412 | +2.2% | 0.5% |
| Slick | 151 | +7.1% | 0.2% |
| Lawrence Creek | 128 | +4.9% | 0.2% |
12 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 Creek County is counted whole, so it has no share.
Creek County, Homes
Of Creek County's 31,387 homes, 72% are detached houses, against 73% across Oklahoma; 19% are mobile homes. Half of its homes were built before 1984, close to Oklahoma's 1980: 16% date from before 1960 and 28% from 2000 or later. 74% 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 | Creek County | Oklahoma |
|---|---|---|
| Housing units | 31,387 | 1,763,036 |
| Detached houses | 72% | 73% |
| In buildings of 5 or more | 4% | 12% |
| Mobile homes | 19% | 9% |
| Built before 1960 | 16% | 21% |
| Built since 2000 | 28% | 25% |
| Middle year built | 1984 | 1980 |
| Owner-occupied | 74% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.