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Radon Levels in Kaufman County, Texas

EPA puts Kaufman County in Zone 3, its lowest radon zone, and only 6 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

How to test this homeFind a certified tester

  • Highest bordering

    8.7%

    Dallas County

    Dallas
    8.7%

    1 of 6 neighbours have 30+ tests, 2007 to 2016

  • Nearest county

    8.7%

    Dallas County, 31 miles

    Dallas
    8.7%
    Texas
    10.4%

    Share at 4+ pCi/L, 699 tests, 2007 to 2016

  • Ground above low

    None

    27.3 pts below Texas

    Kaufman
    0.0%
    Texas
    27.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    6

    Too few for a share

    Kaufman
    6
    Needed
    30

    2008 to 2017, 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 Kaufman 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.

Interpret this readingWhat a fix costs

The data

Kaufman County, At a glance

Kaufman County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Kaufman 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 Kaufman County, 2008 to 2017, laboratory

CDC holds 6 reported tests for Kaufman County over the 2008 to 2017 laboratory totals, with a median of 0.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Kaufman County beside the counties around it is how this page reads it.

What these figures count

Only 6 tests were reported to CDC for Kaufman 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

Kaufman County, Compared

Kaufman County radon figures, compared

Calculated by Radon411

CDC's largest figure for Kaufman County rests on 6 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 16.7 points and no rank or comparison is drawn from it. Results reached as high as 1.0 pCi/L, with a middle value of 0.5 pCi/L.

Dallas County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 8.7% of its tests at or above 4 pCi/L. Farther out, Collin County (44 miles away) at 7.7%, Tarrant County (60 miles away) at 10.6% and Smith County (61 miles away) at 9.1% have figures too. 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 Kaufman 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 Kaufman 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
Ellis County, TXborders it1457.1%11.0 pCi/L
Hunt County, TXborders it425.0%2.0 pCi/L
Rockwall County, TXborders it1618.8%1.2 pCi/L
Dallas County, TXborders it6998.7%1.0 pCi/L
Van Zandt County, TXborders it60.0%0.1 pCi/L
Henderson County, TXborders it10.0%0.8 pCi/L
The nearest Texas counties to Kaufman County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Dallas County31 mi6998.7%1.0 pCi/L
Collin County44 mi2847.7%1.0 pCi/L
Tarrant County60 mi31210.6%0.9 pCi/L
Smith County61 mi339.1%0.8 pCi/L
Denton County64 mi1817.2%0.9 pCi/L
McLennan County90 mi4117.1%1.0 pCi/L
Bell County128 mi3514.3%1.1 pCi/L
Brazos County134 mi490.0%0.2 pCi/L
Kaufman County ten-year laboratory totals, against Texas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestTexas, pooledChange from the row before
2008 to 201760.0%0.5 pCi/L1.0 pCi/L10.2%Level
2007 to 201640.0%0.3 pCi/L0.6 pCi/L10.4%Level
2006 to 201540.0%0.3 pCi/L0.6 pCi/L11.0%Level
2005 to 201420.0%0.6 pCi/L0.6 pCi/L10.6%First on file

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

Kaufman County, Geology

The ground under Kaufman County

Predicted

USGS's geologic map puts all of Kaufman County's mapped land in one class: low radon potential. All of it lies in the area the map calls East Texas Province, to which USGS gives a radon index of 6, in the low band (5 to 8).

USGS's geologic areas under Kaufman County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
East Texas ProvinceCretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite.Low6100%

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

Kaufman County beside the ground around it

Across Texas 0.5% of the land is rated high; none of Kaufman County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Dallas County the most at 64.8%.

Share of land by USGS radon potential: Kaufman County, the 6 counties bordering it and Texas
AreaEPA zoneLow potentialModerate potentialHigh potential
Kaufman CountyZone 3100%NoneNone
Rockwall CountyZone 3100%NoneNone
Van Zandt CountyZone 3100%NoneNone
Dallas CountyZone 335.2%64.8%None
Hunt CountyZone 3100%NoneNone
Ellis CountyZone 358.7%41.3%None
Henderson 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

Kaufman County, Local resources

Radon testing and mitigation in Kaufman County

Listed radon professionals by town: Dallas

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

Kaufman County, Questions

Questions about radon in Kaufman County

Are radon levels high in Kaufman County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Kaufman County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Dallas County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 8.7% of its tests at or above 4 pCi/L.

Which counties border Kaufman County?

Kaufman County borders 6 counties: Rockwall County, Van Zandt County, Dallas County, Hunt County, Ellis County and Henderson County.

Products

Kaufman County, Products

Testing a home in Kaufman County

No CDC figure names Kaufman County; the nearest county with one, Dallas County (31 miles away), reported 8.7% 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 Kaufman County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Kaufman County homes, compared

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Kaufman County, Bordering counties

Counties bordering Kaufman County

Calculated by Radon411

Kaufman County, Cities and towns

Cities and towns in Kaufman County

Kaufman County is growing: the Census Bureau puts it at 209,235 residents on July 1, 2025, up 42.2% from 147,165 in 2020. That works out to 268 people per square mile of land. Dallas, the largest place on its list (1,329,491 residents in all), extends beyond Kaufman County, so no share of the total is worked out for it. Reported testing is thin here: 6 tests over 2008 to 2017, or under 0.1 for every 1,000 residents (2025 estimate), where Texas as a whole comes to 0.1.

From Dallas to Post Oak Bend City, CDC publishes no figure by town: each reads Kaufman County's.

The 12 largest cities and towns in Kaufman County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Dallasextends beyond Kaufman County1,329,491+2.0%Counted whole
Mesquiteextends beyond Kaufman County150,693+0.7%Counted whole
Forney41,658+75.7%19.9%
Terrell23,921+34.2%11.4%
Seagovilleextends beyond Kaufman County21,077+13.6%Counted whole
Heathextends beyond Kaufman County11,671+19.8%Counted whole
Kaufman10,717+45.0%5.1%
Crandall7,730+98.5%3.7%
Mabankextends beyond Kaufman County7,294+75.2%Counted whole
McLendon-Chisholmextends beyond Kaufman County5,629+53.7%Counted whole
Talty3,299+30.2%1.6%
Combineextends beyond Kaufman County2,769+24.1%Counted whole
  • Oak Ridge
  • Seven Points (part)
  • Kemp
  • Scurry
  • Oak Grove
  • Grays Prairie
  • Rosser
  • Cottonwood
  • Post Oak Bend City

21 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 Kaufman County is counted whole, so it has no share.

Kaufman County, Homes

Homes in Kaufman County

Kaufman County is a place of houses on their own lots: 78% of its 52,744 homes are detached single-family houses, against 65% across Texas. Much of Kaufman County is recent building: 59% of its homes have gone up since 2000 and the middle year built is 2004, against 1990 for Texas. Owners live in 79% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.

Homes in Kaufman County, Texas, 2019 to 2023
HomesKaufman CountyTexas
Housing units52,74411,890,808
Detached houses78%65%
In buildings of 5 or more6%21%
Mobile homes12%7%
Built before 19606%13%
Built since 200059%37%
Middle year built20041990
Owner-occupied79%63%

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