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Radon Levels in Wichita County, Texas

EPA puts Wichita 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

  • Nearest county

    7.2%

    Denton County, 106 miles

    Denton
    7.2%
    Texas
    10.4%

    Share at 4+ pCi/L, 181 tests, 2007 to 2016

  • Ground above low

    None

    27.3 pts below Texas

    Wichita
    0.0%
    Texas
    27.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    14

    Too few for a share

    Wichita
    14
    Needed
    30

    2006 to 2015, laboratory

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Wichita 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

Wichita County, At a glance

Wichita County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Wichita County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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 Wichita County, 2008 to 2017, laboratory

CDC holds 10 reported tests for Wichita County over the 2008 to 2017 laboratory totals, with a median of 0.7 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Wichita County beside the counties around it is how this page reads it.

What these figures count

Only 10 tests were reported to CDC for Wichita 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

Wichita County, Compared

Wichita County radon figures, compared

Calculated by Radon411

CDC's largest figure for Wichita County rests on 14 tests over the 2006 to 2015 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 7.1 points and no rank or comparison is drawn from it. Results reached as high as 4.0 pCi/L, with a middle value of 0.8 pCi/L.

The nearest counties with a figure are Denton County (106 miles away) at 7.2%, Tarrant County (117 miles away) at 10.6% and Collin County (135 miles away) at 7.7%. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.

Statewide for the same period, Randall County reported the highest share (71.4%) and Nueces County the lowest (0.0%). EPA's 1993 map puts Wichita 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.

Texas, the United States and the counties around Wichita County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Texas, pooled140 counties, pooled4,54810.4%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Randall Countyhighest in the state8471.4%6.2 pCi/L
Nueces Countylowest in the state450.0%0.6 pCi/L
Wilbarger County, TXborders it10.0%2.6 pCi/L
The nearest Texas counties to Wichita County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Denton County106 mi1817.2%0.9 pCi/L
Tarrant County117 mi31210.6%0.9 pCi/L
Collin County135 mi2847.7%1.0 pCi/L
Dallas County140 mi6998.7%1.0 pCi/L
Lubbock County181 mi12857.8%4.8 pCi/L
McLennan County189 mi4117.1%1.0 pCi/L
Randall County194 mi8471.4%6.2 pCi/L
Potter County206 mi7020.0%1.1 pCi/L
Wichita County ten-year laboratory totals, against Texas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestTexas, pooledChange from the row before
2008 to 2017100.0%0.7 pCi/L1.6 pCi/L10.2%Level
2007 to 201690.0%0.7 pCi/L1.3 pCi/L10.4%−7.1 points
2006 to 2015147.1%0.8 pCi/L4.0 pCi/L11.0%−1.2 points
2005 to 2014128.3%0.7 pCi/L4.0 pCi/L10.6%First on file

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

Wichita County, Geology

The ground under Wichita County

Predicted

USGS's geologic map puts all of Wichita County's mapped land in one class: low radon potential. All of it lies in the area the map calls Central Texas, to which USGS gives a radon index of 7, in the low band (5 to 8).

USGS's geologic areas under Wichita County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Central TexasCretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite.Low799.9%

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

Wichita County beside the ground around it

Across Texas 0.5% of the land is rated high; none of Wichita County's is. None of the 6 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Wichita County, the 6 counties bordering it and Texas
AreaEPA zoneLow potentialModerate potentialHigh potential
Wichita CountyZone 3100%NoneNone
Archer CountyZone 3100%NoneNone
Cotton County, OKZone 3100%NoneNone
Tillman County, OKZone 3100%NoneNone
Wilbarger CountyZone 3100%NoneNone
Clay CountyZone 3100%NoneNone
Baylor CountyZone 3100%NoneNone
Texas254 counties, pooled by land areaVaries72.4%26.8%0.5%

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

Local help

Wichita County, Local resources

Radon testing and mitigation in Wichita County

What it means

Wichita County, Questions

Questions about radon in Wichita County

Are radon levels high in Wichita County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Wichita County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.7 pCi/L. Of the 8 nearest counties with a figure, within 206 miles, the share of tests at or above 4 pCi/L runs from 7.2% to 71.4%.

Which counties border Wichita County?

Wichita County borders 6 counties: Archer County, TX, Cotton County, OK, Tillman County, OK, Wilbarger County, TX, Clay County, TX and Baylor County, TX.

Products

Wichita County, Products

Testing a home in Wichita County

No CDC figure names Wichita County; the nearest county with one, Denton County (106 miles away), reported 7.2% of its tests at or above 4 pCi/L over the 2007 to 2016 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 Wichita County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Wichita County homes, compared

Explore

Wichita County, Bordering counties

Counties bordering Wichita County

Calculated by Radon411

Wichita County, Cities and towns

Cities and towns in Wichita County

Wichita County's population has barely moved since 2020: 129,555 residents on July 1, 2025 against 129,611 then, by the Census Bureau's estimates. That works out to 206 people per square mile of land. Wichita Falls alone is home to 101,951 of them, 78.7% of the total. Together its 6 incorporated places hold 94.5% of those residents; the other 5.5% live outside any of them. CDC's 14 reported tests for 2006 to 2015 work out to 0.1 per 1,000 residents (2025 estimate), close to Texas' 0.1.

From Wichita Falls to Cashion Community, CDC publishes no figure by town: each reads Wichita County's.

The cities and towns in Wichita County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Wichita Falls101,951−0.5%78.7%
Burkburnett11,057+0.8%8.5%
Iowa Park6,542Level5.0%
Electra2,238−2.4%1.7%
Pleasant Valley366+0.8%0.3%
Cashion Community301+5.2%0.2%

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).

Wichita County, Homes

Homes in Wichita County

Of Wichita County's 55,664 homes, 72% are detached houses, against 65% across Texas; 15% are in buildings of five or more homes. The homes are older than Texas' as a whole: half were built before 1972 (1990 for Texas), and 32% date from before 1960. 61% of occupied homes are lived in by their owner (Texas: 63%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Wichita County, Texas, 2019 to 2023
HomesWichita CountyTexas
Housing units55,66411,890,808
Detached houses72%65%
In buildings of 5 or more15%21%
Mobile homes4%7%
Built before 196032%13%
Built since 200014%37%
Middle year built19721990
Owner-occupied61%63%

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