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Radon Levels in Lubbock County, Texas

EPA puts Lubbock County in Zone 2, its middle radon zone, and high results are common there: 55.7% of the 122 radon tests reported to CDC (2008 to 2017, laboratory totals) came back at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

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  • Share at 4+ pCi/L

    55.7%

    45.5 pts above TX

    Lubbock
    55.7%
    Texas
    10.2%

    122 tests, 2008 to 2017

  • Median result

    4.8pCi/L

    Action level reached

    Lubbock
    4.8 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    122

    9th of 22 by tests

    Lubbock
    122
    Harris
    733

    Reported to CDC before any fix, 2008 to 2017

  • 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

  • Rank in Texas

    2 of 22

    Top quarter

    Lubbock
    55.7%
    Randall
    69.0%

    By share, of 22 with 30+ tests

Read a result for Lubbock County

Starts at Lubbock County's median, 4.8 pCi/L

4.8pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 4.8 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. Lubbock County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Lubbock County, At a glance

Lubbock County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Lubbock 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: Moderate across 99% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Reported results by concentration band, Lubbock County, 2008 to 2017, laboratory
Under 2 pCi/L: 20%2 to 4 pCi/L: 24%4 pCi/L and above: 56%

Of 122 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Lubbock County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L2419.7%
2 to 4 pCi/L3024.6%
4 pCi/L and above6855.7%
What these figures count

These are the 122 tests reported to CDC for Lubbock County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not 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

Lubbock County, Compared

Lubbock County radon figures, compared

Calculated by Radon411

More than half: 55.7% of the 122 radon tests reported to CDC for Lubbock County over the 2008 to 2017 laboratory totals read at least 4 pCi/L. That places it 2nd of 22 Texas counties with 30 or more tests for the same period. That is 45.5 points above the 10.2% pooled from 138 Texas counties.

The median result, 4.8 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 105.0 pCi/L. The rest split 19.7% under 2 pCi/L and 24.6% from 2 to 4 (Texas: 80.3% and 9.6%). The reported tests do not follow EPA's Zone 2 label for Lubbock County (predicted average between 2 and 4 pCi/L): 55.7% of them reached 4 pCi/L, fewer than that label suggests.

Statewide for the same period, Randall County reported the highest share (69.0%) and Nueces County the lowest (0.0%).

CDC's ten-year totals for Lubbock County went from 110 tests (2005 to 2014) to 122 (2008 to 2017), the share going from 53.6% to 55.7%.

Nationally, every county with a figure for the same period pools to 35.7%; Lubbock County sits 20.0 points above it.

Lubbock County against Texas, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Lubbock County
Lubbock County12255.7%4.8 pCi/LThis county
Texas, pooled138 counties, pooled4,61510.2%Not pooled−45.5 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled−20.0 points
Randall Countyhighest in the state8769.0%6.1 pCi/L+13.3 points
Nueces Countylowest in the state430.0%0.6 pCi/L−55.7 points
Hale County, TXborders it1181.8%7.8 pCi/L+26.1 points
Where Lubbock County's reported results fell, 2008 to 2017, laboratory, beside Texas and the United States
ResultLubbock County testsLubbock County shareTexas shareU.S. shareAgainst Texas
Under 2 pCi/L2419.7%80.3%39.6%−60.6 points
2 to 4 pCi/L3024.6%9.6%24.7%+15.0 points
4 pCi/L and above6855.7%10.2%35.7%+45.5 points
Lubbock County ranked among the 22 Texas counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Randall County1 of 228769.0%6.1 pCi/L
Lubbock County2 of 2212255.7%4.8 pCi/L
McLennan County3 of 223023.3%1.1 pCi/L
Potter County4 of 227423.0%1.4 pCi/L
Bell County5 of 223016.7%1.3 pCi/L
Tarrant County6 of 2228413.0%0.9 pCi/L
Travis County7 of 224269.2%0.9 pCi/L
Dallas County8 of 227288.4%0.9 pCi/L
Collin County9 of 222897.6%1.0 pCi/L
Denton County10 of 221926.8%0.9 pCi/L
Bexar County11 of 222016.5%0.6 pCi/L
Lubbock County ten-year laboratory totals, against Texas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestTexas, pooledChange from the row before
2008 to 201712255.7%4.8 pCi/L105.0 pCi/L10.2%−2.1 points
2007 to 201612857.8%4.8 pCi/L105.0 pCi/L10.4%+0.8 points
2006 to 201512157.0%4.8 pCi/L105.0 pCi/L11.0%+3.4 points
2005 to 201411053.6%4.4 pCi/L22.6 pCi/L10.6%First on file

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

Lubbock County, Geology

The ground under Lubbock County

Predicted

Most of the ground under Lubbock County is one class on USGS's geologic map: 98.8% of its land is moderate radon potential, with 1.2% low. 98.8% of it lies in the area the map calls Northern High Plains and Plateaus, to which USGS gives a radon index of 10, in the moderate band (9 to 11).

USGS's geologic areas under Lubbock County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Northern High Plains and PlateausTertiary sandstone, siltstone, shale.Moderate1098.8%
Southern High Plains and PlateausPaleozoic and Mesozoic sandstone, limestone, shale.Low71.2%

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

Lubbock County beside the ground around it

Across Texas 0.5% of the land is rated high; none of Lubbock County's is. Of the 8 counties that border it, 4 have more moderate-potential ground, Crosby County the most at 100%.

Share of land by USGS radon potential: Lubbock County, the 8 counties bordering it and Texas
AreaEPA zoneLow potentialModerate potentialHigh potential
Lubbock CountyZone 21.2%98.8%None
Lynn CountyZone 230.2%69.8%None
Crosby CountyZone 2None100%None
Hockley CountyZone 262.0%38.0%None
Hale CountyZone 2None100%None
Garza CountyZone 2None100%None
Terry CountyZone 3100%NoneNone
Floyd CountyZone 211.6%88.4%None
Lamb CountyZone 2None100%None
Texas254 counties, pooled by land areaVaries72.4%26.8%0.5%

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

Local help

Lubbock County, Local resources

Radon testing and mitigation in Lubbock County

What Texas's program says
Licensing of radon professionals
There are no radon certification requirements for the State of Texas at this time, but the National Radon Proficiency Program lists radon testers and mitigators within Texas that have passed a rigorous national certification program.

What it means

Lubbock County, Questions

Questions about radon in Lubbock County

Are radon levels high in Lubbock County?

Over the 2008 to 2017 laboratory totals, 55.7% of the radon tests reported to CDC for Lubbock County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.8 pCi/L. Of 22 Texas counties with 30 or more tests for the same period, 1 reported a higher share; pooled, the state comes to 10.2%.

Which counties border Lubbock County?

Lubbock County borders 8 counties: Lynn County, Crosby County, Hockley County, Hale County, Garza County, Terry County, Floyd County and Lamb County.

Products

Lubbock County, Products

Testing a home in Lubbock County

In Lubbock County, 55.7% of 122 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 10.2% pooled across Texas. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Lubbock County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Lubbock County homes, compared

Explore

Lubbock County, Bordering counties

Counties bordering Lubbock County

Calculated by Radon411

Lubbock County, Cities and towns

Cities and towns in Lubbock County

Lubbock County is growing: the Census Bureau puts it at 328,906 residents on July 1, 2025, up 5.6% from 311,589 in 2020. That works out to 367 people per square mile of land. Lubbock alone is home to 273,071 of them, 83.0% of the total. Testing is reported here more often than across the state: CDC's 122 reported tests for 2008 to 2017 come to 0.4 for every 1,000 residents (2025 estimate), against 0.1 for Texas.

From Lubbock to Buffalo Springs, CDC publishes no figure by town: each reads Lubbock County's.

The cities and towns in Lubbock County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Lubbock273,071+5.8%83.0%
Wolfforth8,746+56.3%2.7%
Slaton5,684−3.4%1.7%
Shallowater2,957−0.4%0.9%
Abernathyextends beyond Lubbock County2,826−1.4%Counted whole
Idalou2,105−4.1%0.6%
Ransom Canyon1,172−1.6%0.4%
New Deal745+1.8%0.2%
Buffalo Springs445−4.7%0.1%

9 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 Lubbock County is counted whole, so it has no share.

Lubbock County, Homes

Homes in Lubbock County

Of Lubbock County's 136,468 homes, 66% are detached houses, against 65% across Texas; 19% are in buildings of five or more homes. Half of its homes were built before 1984, close to Texas' 1990: 17% date from before 1960 and 31% from 2000 or later. 55% 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 Lubbock County, Texas, 2019 to 2023
HomesLubbock CountyTexas
Housing units136,46811,890,808
Detached houses66%65%
In buildings of 5 or more19%21%
Mobile homes5%7%
Built before 196017%13%
Built since 200031%37%
Middle year built19841990
Owner-occupied55%63%

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