Skip to content
RADON411

Locations and reports

Radon Levels in Lawrence County, Missouri

EPA puts Lawrence County in Zone 2, its middle radon zone, and only 4 radon tests from it are on file with CDC (2023). 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

  • Share at 4+ pCi/L

    27.1%

    3.5 pts below MO

    Lawrence
    27.1%
    Missouri
    30.6%

    70 tests, 2008 to 2017

  • Median result

    1.8pCi/L

    Below action level

    Lawrence
    1.8 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    70

    48th of 72 by tests

    Lawrence
    70
    St. Louis
    17,747

    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 Missouri

    43 of 72

    Middle half

    Lawrence
    27.1%
    Atchison
    69.9%

    By share, of 72 with 30+ tests

Read a result for Lawrence County

Starts at Lawrence County's median, 1.8 pCi/L

1.8pCi/L

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

EPA’s reading of 1.8 pCi/L

Below 2 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 below 2 pCi/L, the level at which EPA says a fix should be considered. Lawrence County's median reported result, 2008 to 2017.

Interpret this reading

The data

Lawrence County, At a glance

Lawrence County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Lawrence 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 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Lawrence County, 2023

Share of reported tests at or above 4 pCi/L, by year, Lawrence County
Share of reported tests at or above 4 pCi/L, by year, Lawrence County
YearShare of reported tests at or above 4 pCi/L
201437.5%
20150.0%
201633.3%
2017100.0%
201866.7%
201925.0%
202010.0%
20210.0%
20220.0%
202325.0%

2023: 25.0%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 4 tests were reported to CDC for Lawrence County over 2023, 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: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

How to read these figures

Lawrence County, Compared

Lawrence County radon figures, compared

Calculated by Radon411

Lawrence County's 70 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.8 pCi/L and a maximum of 33.0 pCi/L, and 27.1% reached 4 pCi/L. Missouri as a whole (115 Missouri counties, pooled) comes to 30.6%: 3.5 points higher than here.

The newest figure, in 2023, counts only 4 tests (25.0% at or above 4 pCi/L), too few to compare, so this reading uses the 70-test figure.

Among its state's counties it ranks 43rd of 72 Missouri counties with 30 or more tests for the same period. Statewide for the same period, Atchison County reported the highest share (69.9%) and Vernon County the lowest (8.8%).

Below the action level, 39 tests (55.7%) came in under 2 pCi/L, against 41.2% statewide, and 12 tests (17.1%) fell between 2 and 4, against 28.1% statewide. The busiest year on file was 2020, with 10 tests reported; the quietest, 2021, had 2.

EPA's 1993 zone map puts Lawrence County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.

Next door, the shares run from 29.1% in Jasper County to 41.8% in Barry County.

CDC also counts 9 tests taken after mitigation in Lawrence County for the same period: tests in homes where a fix was already in.

Lawrence County against Missouri, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Lawrence County
Lawrence County7027.1%1.8 pCi/LThis county
Missouri, pooled115 counties, pooled58,52530.6%Not pooled+3.5 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+8.6 points
Atchison Countyhighest in the state10369.9%5.6 pCi/L+42.8 points
Vernon Countylowest in the state348.8%0.9 pCi/L−18.3 points
Barry County, MOborders it5541.8%3.1 pCi/L+14.7 points
Stone County, MOborders it13741.6%2.9 pCi/L+14.5 points
Greene County, MOborders it1,47032.7%2.5 pCi/L+5.6 points
Christian County, MOborders it43631.7%1.9 pCi/L+4.6 points
Newton County, MOborders it16731.1%2.5 pCi/L+4.0 points
Jasper County, MOborders it25129.1%2.0 pCi/L+2.0 points
Dade County, MOborders it70.0%1.3 pCi/L−27.1 points
Where Lawrence County's reported results fell, 2008 to 2017, laboratory, beside Missouri and the United States
ResultLawrence County testsLawrence County shareMissouri shareU.S. shareAgainst Missouri
Under 2 pCi/L3955.7%41.2%39.6%+14.5 points
2 to 4 pCi/L1217.1%28.1%24.7%−11.0 points
4 pCi/L and above1927.1%30.6%35.7%−3.5 points
Lawrence County ranked among the 72 Missouri counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Benton County38 of 724930.6%2.0 pCi/L
Audrain County39 of 7212729.9%2.5 pCi/L
Scott County40 of 725129.4%2.2 pCi/L
Jasper County41 of 7225129.1%2.0 pCi/L
Adair County42 of 729227.2%1.8 pCi/L
Lawrence County43 of 727027.1%1.8 pCi/L
Callaway County44 of 7219227.1%1.7 pCi/L
Daviess County45 of 723026.7%2.0 pCi/L
St. Charles County46 of 727,00126.5%2.2 pCi/L
St. Louis County47 of 7217,74726.3%2.3 pCi/L
Washington County48 of 723826.3%1.5 pCi/L
Lawrence County radon tests by year, against Missouri's pooled share
YearTestsAt or above 4 pCi/LMedianHighestMissouri, pooledChange from the row before
2023425.0%0.1 pCi/L13.6 pCi/L35.7%+25.0 points
202280.0%1.1 pCi/L3.0 pCi/L40.8%Level
202120.0%1.3 pCi/L2.3 pCi/L31.8%−10.0 points
20201010.0%1.8 pCi/L8.5 pCi/L33.2%−15.0 points
2019425.0%2.4 pCi/L45.9 pCi/L33.5%−41.7 points
2018366.7%9.0 pCi/L25.9 pCi/L42.1%−33.3 points
20172100.0%7.2 pCi/L7.8 pCi/L37.0%+66.7 points
2016333.3%1.4 pCi/L8.5 pCi/L29.8%+33.3 points
201570.0%1.1 pCi/L3.6 pCi/L27.6%−37.5 points
2014837.5%2.5 pCi/L23.6 pCi/L34.4%First on file

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

Lawrence County, Geology

The ground under Lawrence County

Predicted

USGS's geologic map puts all of Lawrence County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Springfield Plateau, to which USGS gives a radon index of 11, in the moderate band (9 to 11).

USGS's geologic areas under Lawrence County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Springfield PlateauMississippian limestone, shale, and sandstone.Moderate11100%

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

Lawrence County beside the ground around it

Across Missouri 8.2% of the land is rated high; none of Lawrence County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Barry County comes nearest at 100%.

Share of land by USGS radon potential: Lawrence County, the 7 counties bordering it and Missouri
AreaEPA zoneLow potentialModerate potentialHigh potential
Lawrence CountyZone 2None100%None
Dade CountyZone 2None100%None
Greene CountyZone 2None100%None
Jasper CountyZone 2None100%None
Newton CountyZone 2None100%None
Barry CountyZone 2None100%None
Stone CountyZone 2None100%None
Christian CountyZone 2None100%None
Missouri115 counties, pooled by land areaVaries5.8%86.0%8.2%

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

Local help

Lawrence County, Local resources

Radon testing and mitigation in Lawrence County

What Missouri's program says
Phone
573-751-6102
Email
radon@health.mo.gov

What it means

Lawrence County, Questions

Questions about radon in Lawrence County

Are radon levels high in Lawrence County?

In 2023, 25.0% of the radon tests reported to CDC for Lawrence County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Of 72 Missouri counties with 30 or more tests for the same period, 42 reported a higher share; pooled, the state comes to 30.6%.

Which counties border Lawrence County?

Lawrence County borders 7 counties: Dade County, Greene County, Jasper County, Newton County, Barry County, Stone County and Christian County.

Products

Lawrence County, Products

Testing a home in Lawrence County

In Lawrence County, 27.1% of 70 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 30.6% pooled across Missouri. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Lawrence County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Lawrence County homes, compared

Explore

Lawrence County, Bordering counties

Counties bordering Lawrence County

Calculated by Radon411

Lawrence County, Cities and towns

Cities and towns in Lawrence County

The Census Bureau estimates 39,401 residents in Lawrence County for July 1, 2025, 1,411 more than in 2020 (+3.7%). That works out to 64 people per square mile of land. Monett, the largest place on its list (10,248 residents in all), extends beyond Lawrence County, so no share of the total is worked out for it. Reported testing is thin here: 70 tests over 2008 to 2017, or 1.8 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 9.3.

From Monett to Hoberg, CDC publishes no figure by town: each reads Lawrence County's.

The 10 largest cities and towns in Lawrence County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Monettextends beyond Lawrence County10,248+6.3%Counted whole
Aurora7,686+5.6%19.5%
Mount Vernon4,835+7.3%12.3%
Marionville2,108+2.4%5.4%
Pierce Cityextends beyond Lawrence County1,275+2.0%Counted whole
Miller715+1.7%1.8%
Verona520+3.0%1.3%
Freistatt182+1.1%0.5%
Stotts City175+2.3%0.4%
Halltown105+1.9%0.3%
  • Hoberg

11 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 Lawrence County is counted whole, so it has no share.

Lawrence County, Homes

Homes in Lawrence County

Lawrence County is a place of houses on their own lots: 78% of its 16,280 homes are detached single-family houses, against 70% across Missouri. Half of its homes were built before 1979, close to Missouri's 1978: 26% date from before 1960 and 23% from 2000 or later. 73% of occupied homes are lived in by their owner (Missouri: 68%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Lawrence County, Missouri, 2019 to 2023
HomesLawrence CountyMissouri
Housing units16,2802,809,501
Detached houses78%70%
In buildings of 5 or more3%13%
Mobile homes11%5%
Built before 196026%28%
Built since 200023%21%
Middle year built19791978
Owner-occupied73%68%

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