Skip to content

Locations and reports

Radon Levels in Mayes County, Oklahoma

EPA puts Mayes County in Zone 2, its middle radon zone, and only 3 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

    44.7%

    Delaware County

    Delaware
    44.7%
    Cherokee
    32.0%

    2 of 5 neighbours have 30+ tests, 2006 to 2015

  • Nearest county

    44.7%

    Delaware County, 25 miles

    Delaware
    44.7%
    Oklahoma
    12.6%

    Share at 4+ pCi/L, 38 tests, 2006 to 2015

  • Ground above low

    41.2%

    26.0 pts above Oklahoma

    Mayes
    41.2%
    Oklahoma
    15.2%

    Share of land USGS rates moderate or high potential

  • Tests reported

    8

    Too few for a share

    Mayes
    8
    Needed
    30

    2007 to 2016, laboratory

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

Read a result for Mayes County

Starts at EPA's action level

4.0pCi/L

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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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

Mayes County, At a glance

Mayes County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Mayes County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Low across 59% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Mayes County, 2008 to 2017, laboratory

CDC holds 3 reported tests for Mayes County over the 2008 to 2017 laboratory totals, with a median of 3.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Mayes County beside the counties around it is how this page reads it.

What these figures count

Only 3 tests were reported to CDC for Mayes 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).

How to read these figures

Mayes County, Compared

Mayes County radon figures, compared

Calculated by Radon411

CDC's largest figure for Mayes County rests on 8 tests over the 2007 to 2016 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 12.5 points and no rank or comparison is drawn from it. Results reached as high as 10.0 pCi/L, with a middle value of 1.3 pCi/L.

Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: Delaware County reported the largest share at or above 4 pCi/L, 44.7%, and Cherokee County the smallest, 32.0%. Farther out, Tulsa County (42 miles away) at 6.0%, Washington County (47 miles away) at 11.3% and Oklahoma County (133 miles away) at 8.9% 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 Mayes County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 59% of the county's land low radon potential.

Oklahoma, the United States and the counties around Mayes County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
Oklahoma, pooled53 counties, pooled86012.6%Not pooled
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Washington Countyhighest in the state5311.3%1.9 pCi/L
Tulsa Countylowest in the state3006.0%0.9 pCi/L
Delaware County, OKborders it3844.7%2.5 pCi/L
Craig County, OKborders it333.3%3.7 pCi/L
Cherokee County, OKborders it5032.0%1.9 pCi/L
Rogers County, OKborders it1711.8%0.6 pCi/L
Wagoner County, OKborders it147.1%1.5 pCi/L
The nearest Oklahoma counties to Mayes County with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Delaware County25 mi3844.7%2.5 pCi/L
Cherokee County30 mi5032.0%1.9 pCi/L
Tulsa County42 mi3006.0%0.9 pCi/L
Washington County47 mi5311.3%1.9 pCi/L
Oklahoma County133 mi1358.9%0.9 pCi/L
Mayes County ten-year laboratory totals, against Oklahoma's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestOklahoma, pooledChange from the row before
2008 to 2017333.3%3.8 pCi/L10.0 pCi/L12.7%+20.8 points
2007 to 2016812.5%1.3 pCi/L10.0 pCi/L12.1%−1.8 points
2006 to 2015714.3%1.2 pCi/L10.0 pCi/L12.6%Level
2005 to 2014714.3%1.2 pCi/L10.0 pCi/L12.0%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Mayes County, Geology

The ground under Mayes County

Predicted

USGS's geologic map splits Mayes County: 58.8% of its land is low radon potential and 41.2% moderate. The map puts 58.8% of Mayes County in the area it calls Central Oklahoma Plains and Hills and 41.2% in Ozark Plateau. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).

USGS's geologic areas under Mayes County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Central Oklahoma Plains and HillsNonmarine Permian and Tertiary rocks, including shale, sandstone, and conglomerate in the western part, and Mississippian and Pennsylvanian rocks in the eastern part.Low758.8%
Ozark PlateauMississippian and Pennsylvanian limestone and shale.Moderate941.2%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Mayes County beside the ground around it

Across Oklahoma 0.6% of the land is rated high; none of Mayes County's is. Of the 5 counties that border it, 2 have more moderate-potential ground, Delaware County the most at 99.9%.

Share of land by USGS radon potential: Mayes County, the 5 counties bordering it and Oklahoma
AreaEPA zoneLow potentialModerate potentialHigh potential
Mayes CountyZone 258.8%41.2%None
Rogers CountyZone 3100%NoneNone
Delaware CountyZone 20.1%99.9%None
Craig CountyZone 394.1%5.9%None
Wagoner CountyZone 399.6%0.4%None
Cherokee CountyZone 216.7%83.3%None
Oklahoma77 counties, pooled by land areaVaries84.8%14.6%0.6%

The map rates the ground, not the air in any home.

What it means

Mayes County, Questions

Questions about radon in Mayes County

Are radon levels high in Mayes County?

Over the 2008 to 2017 laboratory totals, 33.3% of the radon tests reported to CDC for Mayes County, Oklahoma were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.8 pCi/L. Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: Delaware County reported the largest share at or above 4 pCi/L, 44.7%, and Cherokee County the smallest, 32.0%.

Which counties border Mayes County?

Mayes County borders 5 counties: Rogers County, Delaware County, Craig County, Wagoner County and Cherokee County.

Products

Mayes County, Products

Testing a home in Mayes County

No CDC figure names Mayes County; the nearest county with one, Delaware County (25 miles away), reported 44.7% 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. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Mayes County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Mayes County homes, compared

Explore

Mayes County, Bordering counties

Counties bordering Mayes County

Calculated by Radon411

Mayes County, Cities and towns

Cities and towns in Mayes County

The Census Bureau estimates 40,416 residents in Mayes County for July 1, 2025, 1,362 more than in 2020 (+3.5%). That works out to 62 people per square mile of land. Its largest town, Pryor Creek, has 9,723 residents, 24.1% of the total. CDC's 8 reported tests for 2007 to 2016 work out to 0.2 per 1,000 residents (2025 estimate), close to Oklahoma's 0.2.

From Pryor Creek to Hoot Owl, CDC publishes no figure by town: each reads Mayes County's.

The 12 largest cities and towns in Mayes County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Pryor Creek9,723+2.9%24.1%
Chouteau2,175+5.9%5.4%
Locust Grove1,397+2.3%3.5%
Salina1,127+2.3%2.8%
Adair750+2.6%1.9%
Langleyextends beyond Mayes County646+3.4%Counted whole
Ketchumextends beyond Mayes County514+2.6%Counted whole
Spavinaw366+2.8%0.9%
Sportsmen Acres337+0.6%0.8%
Disney229+2.7%0.6%
Pensacola109+7.9%0.3%
Grand Lake Towne80+1.3%0.2%
  • Strang
  • Hoot Owl

14 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025). A place that extends beyond Mayes County is counted whole, so it has no share.

Mayes County, Homes

Homes in Mayes County

Of Mayes County's 18,365 homes, 74% are detached houses, against 73% across Oklahoma; 18% are mobile homes. Half of its homes were built before 1981, close to Oklahoma's 1980: 18% date from before 1960 and 25% 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 in Mayes County, Oklahoma, 2019 to 2023
HomesMayes CountyOklahoma
Housing units18,3651,763,036
Detached houses74%73%
In buildings of 5 or more4%12%
Mobile homes18%9%
Built before 196018%21%
Built since 200025%25%
Middle year built19811980
Owner-occupied74%66%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.