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Oklahoma Radon Map and Levels by County

Oklahoma's counties span EPA Zones 2 and 3. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
68 of 77counties in Zone 3, EPA's lowest predicted zone
Measured
By countyCDC publishes Oklahoma's test figures by county: 55 of 77 counties have one.
Your home
Test to knowNo area figure here is a reading of your home.
How to test this homeFind a certified tester

The data

Oklahoma, At a glance

Oklahoma at a glance

Predicted: EPA radon zone

77 of 77 counties classified

EPA classifies counties, not states. Of the 77 counties in Oklahoma with a zone, 9 are in Zone 2 and 68 in Zone 3.

  • Zone 2: Moderate predicted potential2 to 4 pCi/L9 of 77 counties · 11.7%
  • Zone 3: Lower predicted potentialless than 2 pCi/L68 of 77 counties · 88.3%

An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

CDC test figures, county by county

CDC publishes Oklahoma's radon test figures by county: 55 of its 77 counties have one. Each one's share is in the county list.

Oklahoma, Counties

Oklahoma counties by EPA zone

Predicted

Oklahoma's radon map, then all 77 counties by the zone EPA predicts for each, highest reported share of tests at or above 4 pCi/L first. Each has its own report.

Oklahoma radon map by county: EPA radon zones. Map of Oklahoma's 77 counties shaded by EPA radon zone: Zone 2 in amber, Zone 3 in pale sand. 0 in Zone 1, 9 in Zone 2, 68 in Zone 3.
Oklahoma radon map by countyEPA radon zones for Oklahoma's counties: 0 counties in Zone 1, 9 counties in Zone 2, 68 counties in Zone 3.Predicted potential for each county, not a reading of any home. Homes with elevated levels of radon have been found in all three zones.

Zone 2: moderate predicted potential9

Local help

Oklahoma, Local resources

Local resources in Oklahoma

Who to ask in Oklahoma: its radon program, test kits and professionals.

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for your Oklahoma county, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get your Oklahoma county's BriefSee a free sample

Area data, not a test of the building.

What it means

Oklahoma, Questions

Questions about radon in Oklahoma

Common questions

8 questions, answered from the figures above

Is radon a problem in Oklahoma?

EPA's Map of Radon Zones places 0 of the 77 Oklahoma counties it classifies in Zone 1, the highest predicted potential, 9 in Zone 2 and 68 in Zone 3. An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Oklahoma on the radon mapRadon levels by state

How do I get a radon test in Oklahoma?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. The Oklahoma radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeFree and low-cost kits by stateOklahoma radon program

Who does radon mitigation in Oklahoma?

Radon411 has no radon business listed for Oklahoma yet. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional.

How radon mitigation worksWhat mitigation costsRadon professionals in Oklahoma

Which Oklahoma counties have the highest radon?

77 of Oklahoma's 77 counties have an EPA radon zone published here. Radon411 will not rank counties on data it does not hold, and a zone is a prediction for an area rather than a measurement of any building.

What share of radon tests in Oklahoma are high?

CDC has published no statewide radon testing statistics for Oklahoma, so we cannot give a figure. Where CDC does publish one, the percentage describes radon tests reported to CDC, not homes.

Which EPA region is Oklahoma in?

Oklahoma is in EPA Region 6: South Central.

Do I need to test my home in Oklahoma?

Yes, wherever you live in the state. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L.

Why does this page show coverage rather than one radon level for Oklahoma?

A statewide figure averages counties with very different geology and very different numbers of reported tests, so it hides more than it shows. The county report is the level at which the EPA zone, the geologic potential and the reported testing statistics are actually published, which is why the county table above links to every one of them.

If you own, buy, sell or rent

What these figures mean for each reader, with the guide that covers it

The zone counts on this page describe counties across Oklahoma. They are predictions for areas, and none of them measures your building.

Oklahoma in figures

The figures above, said in words

What the published data says about Oklahoma, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places 9 of Oklahoma's 77 counties in Zone 2 and 68 in Zone 3.

      No Oklahoma county is in Zone 1.

    • Compared

      Calculated by Radon411

      0% of Oklahoma's counties with a zone on file are in Zone 1, a smaller share than across all U.S. counties (34%). It is a share of counties, not of land, people or homes.

  • Reported tests

    Measured

    CDC has no statewide testing figure for Oklahoma on file here.

    55 of the 77 counties have a published county figure; the most tests in each one's latest year were reported for Tulsa County (306 tests over 2008 to 2017, laboratory), Oklahoma County (119 tests over 2008 to 2017, laboratory) and Cherokee County (51 tests over 2008 to 2017, laboratory).

Oklahoma's radon program and its page are under Local resources.

Products

Oklahoma, Products

Testing and mitigation products

Whatever the figures for Oklahoma show, only a test tells you about one home.

Test kits and monitors42

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Best radon monitors for Oklahoma homes, compared

Testing

5

Mitigation

3

Explore

Oklahoma, Next steps

What to do next

  1. LearnKnow what radon isWhat radon is, how it gets indoors, and why a county zone is not a reading for your home.Learn about radon
  2. TestTest the building you live inShort-term or long-term, where the device goes, and closed-house conditions.How to test
  3. FixBring a high level downHow a mitigation system works, and the retest that confirms it.How mitigation works
  4. Find a proHire a certified professionalMeasurement and mitigation professionals by state, with their certifications.Find a professional

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.