Radon levels in Oklahoma

Verified county-level radon indicators are available for 52 Oklahoma counties. Select a county for its source period and sample details.

High results are most common in Delaware County (42%) and least common in Tulsa County (8%)Share of tests at or above 4 pCi/L by county · Radon test results from laboratories, 2008–2017 · 52 of 77 counties have data
Adair County: 50% of tests at or above 4 pCi/L · 2 testsAlfalfa County: 100% of tests at or above 4 pCi/L · 1 testsAtoka County: no dataBeaver County: no dataBeckham County: 0% of tests at or above 4 pCi/L · 3 testsBlaine County: no dataBryan County: 0% of tests at or above 4 pCi/L · 1 testsCaddo County: no dataCanadian County: 19% of tests at or above 4 pCi/L · 21 testsCarter County: 14% of tests at or above 4 pCi/L · 7 testsCherokee County: 31% of tests at or above 4 pCi/L · 51 testsChoctaw County: 100% of tests at or above 4 pCi/L · 2 testsCimarron County: 67% of tests at or above 4 pCi/L · 3 testsCleveland County: 0% of tests at or above 4 pCi/L · 24 testsCoal County: no dataComanche County: 10% of tests at or above 4 pCi/L · 10 testsCotton County: no dataCraig County: 0% of tests at or above 4 pCi/L · 2 testsCreek County: 0% of tests at or above 4 pCi/L · 10 testsCuster County: 0% of tests at or above 4 pCi/L · 2 testsDelaware County: 42% of tests at or above 4 pCi/L · 31 testsDewey County: 33% of tests at or above 4 pCi/L · 6 testsEllis County: no dataGarfield County: 40% of tests at or above 4 pCi/L · 5 testsGarvin County: 0% of tests at or above 4 pCi/L · 1 testsGrady County: 0% of tests at or above 4 pCi/L · 3 testsGrant County: 25% of tests at or above 4 pCi/L · 4 testsGreer County: no dataHarmon County: no dataHarper County: no dataHaskell County: 0% of tests at or above 4 pCi/L · 1 testsHughes County: 0% of tests at or above 4 pCi/L · 2 testsJackson County: 0% of tests at or above 4 pCi/L · 5 testsJefferson County: 0% of tests at or above 4 pCi/L · 1 testsJohnston County: no dataKay County: 28% of tests at or above 4 pCi/L · 25 testsKingfisher County: 0% of tests at or above 4 pCi/L · 2 testsKiowa County: no dataLatimer County: no dataLe Flore County: 0% of tests at or above 4 pCi/L · 9 testsLincoln County: 0% of tests at or above 4 pCi/L · 4 testsLogan County: 0% of tests at or above 4 pCi/L · 8 testsLove County: no dataMcClain County: 40% of tests at or above 4 pCi/L · 5 testsMcCurtain County: 0% of tests at or above 4 pCi/L · 1 testsMcIntosh County: 0% of tests at or above 4 pCi/L · 2 testsMajor County: 0% of tests at or above 4 pCi/L · 4 testsMarshall County: no dataMayes County: 33% of tests at or above 4 pCi/L · 3 testsMurray County: no dataMuskogee County: 6% of tests at or above 4 pCi/L · 17 testsNoble County: no dataNowata County: no dataOkfuskee County: no dataOklahoma County: 8% of tests at or above 4 pCi/L · 119 testsOkmulgee County: 0% of tests at or above 4 pCi/L · 1 testsOsage County: 0% of tests at or above 4 pCi/L · 3 testsOttawa County: 0% of tests at or above 4 pCi/L · 3 testsPawnee County: no dataPayne County: 7% of tests at or above 4 pCi/L · 15 testsPittsburg County: no dataPontotoc County: 0% of tests at or above 4 pCi/L · 3 testsPottawatomie County: 11% of tests at or above 4 pCi/L · 9 testsPushmataha County: no dataRoger Mills County: 0% of tests at or above 4 pCi/L · 1 testsRogers County: 15% of tests at or above 4 pCi/L · 27 testsSeminole County: no dataSequoyah County: 0% of tests at or above 4 pCi/L · 4 testsStephens County: 0% of tests at or above 4 pCi/L · 2 testsTexas County: 67% of tests at or above 4 pCi/L · 6 testsTillman County: no dataTulsa County: 8% of tests at or above 4 pCi/L · 306 testsWagoner County: 0% of tests at or above 4 pCi/L · 10 testsWashington County: 4% of tests at or above 4 pCi/L · 23 testsWashita County: 0% of tests at or above 4 pCi/L · 3 testsWoods County: 0% of tests at or above 4 pCi/L · 1 testsWoodward County: no data
  • Under 10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40% or more
  • No data

Counties

CountyTests% ≥ 4 pCi/LMedian (pCi/L)EPA zone (1993)Source
Adair County250%3.8Zone 2Radon test results from laboratories through 2017
Alfalfa County1100%29.3Zone 3Radon test results from laboratories through 2017
Atoka County———Zone 3—
Beaver County———Zone 2—
Beckham County30%1.8Zone 3Radon test results from laboratories through 2017
Blaine County———Zone 3—
Bryan County10%0.6Zone 3Radon test results from laboratories through 2017
Caddo County———Zone 3—
Canadian County2119%0.6Zone 3Radon test results from laboratories through 2017
Carter County714%1.2Zone 3Radon test results from laboratories through 2017
Cherokee County5131%1.9Zone 2Radon test results from laboratories through 2017
Choctaw County2100%4.8Zone 3Radon test results from laboratories through 2017
Cimarron County367%4.7Zone 2Radon test results from laboratories through 2017
Cleveland County240%1.0Zone 3Radon test results from laboratories through 2017
Coal County———Zone 3—
Comanche County1010%0.6Zone 3Radon test results from laboratories through 2017
Cotton County———Zone 3—
Craig County20%2.6Zone 3Radon test results from laboratories through 2017
Creek County100%0.8Zone 3Radon test results from laboratories through 2017
Custer County20%2.3Zone 3Radon test results from laboratories through 2017
Delaware County3142%2.3Zone 2Radon test results from laboratories through 2017
Dewey County633%3.3Zone 3Radon test results from laboratories through 2017
Ellis County———Zone 2—
Garfield County540%2.3Zone 3Radon test results from laboratories through 2017
Garvin County10%1.9Zone 3Radon test results from laboratories through 2017
Grady County30%1.0Zone 3Radon test results from laboratories through 2017
Grant County425%2.5Zone 3Radon test results from laboratories through 2017
Greer County———Zone 3—
Harmon County———Zone 3—
Harper County———Zone 3—
Haskell County10%0.7Zone 3Radon test results from laboratories through 2017
Hughes County20%1.1Zone 3Radon test results from laboratories through 2017
Jackson County50%0.6Zone 3Radon test results from laboratories through 2017
Jefferson County10%0.1Zone 3Radon test results from laboratories through 2017
Johnston County———Zone 3—
Kay County2528%1.9Zone 3Radon test results from laboratories through 2017
Kingfisher County20%1.2Zone 3Radon test results from laboratories through 2017
Kiowa County———Zone 3—
Latimer County———Zone 3—
Le Flore County90%0.8Zone 3Radon test results from laboratories through 2017
Lincoln County40%1.0Zone 3Radon test results from laboratories through 2017
Logan County80%1.1Zone 3Radon test results from laboratories through 2017
Love County———Zone 3—
Major County40%2.2Zone 3Radon test results from laboratories through 2017
Marshall County———Zone 3—
Mayes County333%3.8Zone 2Radon test results from laboratories through 2017
McClain County540%1.7Zone 3Radon test results from laboratories through 2017
McCurtain County10%1.9Zone 3Radon test results from laboratories through 2017
McIntosh County20%1.3Zone 3Radon test results from laboratories through 2017
Murray County———Zone 3—
Muskogee County176%1.3Zone 3Radon test results from laboratories through 2017
Noble County———Zone 3—
Nowata County———Zone 3—
Okfuskee County———Zone 3—
Oklahoma County1198%0.8Zone 3Radon test results from laboratories through 2017
Okmulgee County10%2.1Zone 3Radon test results from laboratories through 2017
Osage County30%0.9Zone 3Radon test results from laboratories through 2017
Ottawa County30%0.2Zone 3Radon test results from laboratories through 2017
Pawnee County———Zone 3—
Payne County157%0.7Zone 3Radon test results from laboratories through 2017
Pittsburg County———Zone 3—
Pontotoc County30%0.6Zone 3Radon test results from laboratories through 2017
Pottawatomie County911%0.1Zone 3Radon test results from laboratories through 2017
Pushmataha County———Zone 3—
Roger Mills County10%3.2Zone 3Radon test results from laboratories through 2017
Rogers County2715%0.8Zone 3Radon test results from laboratories through 2017
Seminole County———Zone 3—
Sequoyah County40%1.6Zone 2Radon test results from laboratories through 2017
Stephens County20%0.8Zone 3Radon test results from laboratories through 2017
Texas County667%4.9Zone 2Radon test results from laboratories through 2017
Tillman County———Zone 3—
Tulsa County3068%0.9Zone 3Radon test results from laboratories through 2017
Wagoner County100%1.1Zone 3Radon test results from laboratories through 2017
Washington County234%1.6Zone 3Radon test results from laboratories through 2017
Washita County30%2.8Zone 3Radon test results from laboratories through 2017
Woods County10%1.8Zone 3Radon test results from laboratories through 2017
Woodward County———Zone 3—

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