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Radon Levels in Livingston County, Missouri

EPA puts Livingston County in Zone 2, its middle radon zone, and only 3 radon tests from it are on file with CDC (2022). 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

    22.4%

    8.2 pts below MO

    Livingston
    22.4%
    Missouri
    30.6%

    49 tests, 2008 to 2017

  • Median result

    2.1pCi/L

    Below action level

    Livingston
    2.1 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    49

    58th of 72 by tests

    Livingston
    49
    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

    55 of 72

    Lowest quarter

    Livingston
    22.4%
    Atchison
    69.9%

    By share, of 72 with 30+ tests

Read a result for Livingston County

Starts at Livingston County's median, 2.1 pCi/L

2.1pCi/L

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

EPA’s reading of 2.1 pCi/L

Between 2 and 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 between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Livingston County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Livingston County, At a glance

Livingston County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Livingston 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 Livingston County, 2022

Share of reported tests at or above 4 pCi/L, by year, Livingston County
Share of reported tests at or above 4 pCi/L, by year, Livingston County
YearShare of reported tests at or above 4 pCi/L
201433.3%
20150.0%
20160.0%
20170.0%
201850.0%
20190.0%
20200.0%
2021100.0%
20220.0%

2022: 0.0%. 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 3 tests were reported to CDC for Livingston County over 2022, 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: 2022. Measured data period: 2005 to 2022 (every CDC figure on file).

How to read these figures

Livingston County, Compared

Livingston County radon figures, compared

Calculated by Radon411

Livingston County's 49 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.1 pCi/L and a maximum of 59.2 pCi/L, and 22.4% reached 4 pCi/L. Missouri as a whole (115 Missouri counties, pooled) comes to 30.6%: 8.2 points higher than here.

The newest figure, in 2022, counts only 3 tests (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 49-test figure.

Among its state's counties it ranks 55th 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, 16 tests (32.7%) came in under 2 pCi/L, against 41.2% statewide, and 22 tests (44.9%) fell between 2 and 4, against 28.1% statewide. The busiest year on file was 2017, with 6 tests reported; the quietest, 2021, had 1.

EPA's 1993 zone map puts Livingston 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 18.9% in Linn County to 26.7% in Daviess County, with Linn County below Livingston County.

Livingston County against Missouri, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Livingston County
Livingston County4922.4%2.1 pCi/LThis county
Missouri, pooled115 counties, pooled58,52530.6%Not pooled+8.2 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+13.3 points
Atchison Countyhighest in the state10369.9%5.6 pCi/L+47.5 points
Vernon Countylowest in the state348.8%0.9 pCi/L−13.6 points
Grundy County, MOborders it2737.0%2.8 pCi/L+14.6 points
Carroll County, MOborders it1833.3%2.7 pCi/L+10.9 points
Daviess County, MOborders it3026.7%2.0 pCi/L+4.3 points
Linn County, MOborders it3718.9%1.8 pCi/L−3.5 points
Chariton County, MOborders it1513.3%1.7 pCi/L−9.1 points
Caldwell County, MOborders it166.3%1.5 pCi/L−16.1 points
Where Livingston County's reported results fell, 2008 to 2017, laboratory, beside Missouri and the United States
ResultLivingston County testsLivingston County shareMissouri shareU.S. shareAgainst Missouri
Under 2 pCi/L1632.7%41.2%39.6%−8.5 points
2 to 4 pCi/L2244.9%28.1%24.7%+16.8 points
4 pCi/L and above1122.4%30.6%35.7%−8.2 points
Livingston 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
Moniteau County50 of 726825.0%2.2 pCi/L
Cole County51 of 7276824.6%2.1 pCi/L
DeKalb County52 of 723324.2%2.3 pCi/L
Monroe County53 of 723023.3%1.5 pCi/L
Camden County54 of 7276322.9%2.2 pCi/L
Livingston County55 of 724922.4%2.1 pCi/L
Boone County56 of 724,76721.7%1.9 pCi/L
Butler County57 of 723321.2%1.9 pCi/L
Morgan County58 of 7212321.1%2.2 pCi/L
Webster County59 of 7210320.4%1.6 pCi/L
Macon County60 of 723619.4%1.7 pCi/L
Livingston County radon tests by year, against Missouri's pooled share
YearTestsAt or above 4 pCi/LMedianHighestMissouri, pooledChange from the row before
202230.0%3.1 pCi/L3.6 pCi/L40.8%−100.0 points
20211100.0%11.3 pCi/L11.3 pCi/L31.8%+100.0 points
202010.0%0.5 pCi/L0.5 pCi/L33.2%Level
201910.0%0.8 pCi/L0.8 pCi/L33.5%−50.0 points
2018450.0%3.0 pCi/L7.0 pCi/L42.1%+50.0 points
201760.0%2.2 pCi/L2.8 pCi/L37.0%Level
201620.0%1.4 pCi/L2.3 pCi/L29.8%Level
201510.0%2.3 pCi/L2.3 pCi/L27.6%−33.3 points
2014333.3%2.0 pCi/L7.4 pCi/L34.4%First on file

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

Livingston County, Geology

The ground under Livingston County

Predicted

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

USGS's geologic areas under Livingston County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Dissected Till PlainsTill-covered Pennsylvanian sandstone, shale, and limestone.Moderate11100%

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

Livingston County beside the ground around it

Across Missouri 8.2% of the land is rated high; none of Livingston County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Caldwell County comes nearest at 100%.

Share of land by USGS radon potential: Livingston County, the 6 counties bordering it and Missouri
AreaEPA zoneLow potentialModerate potentialHigh potential
Livingston CountyZone 2None100%None
Grundy CountyZone 2None100%None
Daviess CountyZone 2None100%None
Linn CountyZone 2None100%None
Caldwell CountyZone 2None100%None
Carroll CountyZone 2None100%None
Chariton 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

Livingston County, Local resources

Radon testing and mitigation in Livingston County

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

What it means

Livingston County, Questions

Questions about radon in Livingston County

Are radon levels high in Livingston County?

In 2022, 0.0% of the radon tests reported to CDC for Livingston County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.1 pCi/L. Of 72 Missouri counties with 30 or more tests for the same period, 54 reported a higher share; pooled, the state comes to 30.6%.

Which counties border Livingston County?

Livingston County borders 6 counties: Grundy County, Daviess County, Linn County, Caldwell County, Carroll County and Chariton County.

Products

Livingston County, Products

Testing a home in Livingston County

In Livingston County, 22.4% of 49 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 Livingston County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Livingston County homes, compared

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Livingston County, Bordering counties

Counties bordering Livingston County

Calculated by Radon411

Livingston County, Cities and towns

Cities and towns in Livingston County

The Census Bureau estimates 14,708 residents in Livingston County for July 1, 2025, 153 more than in 2020 (+1.1%). That works out to 28 people per square mile of land. Chillicothe alone is home to 9,114 of them, 62.0% of the total. Together its 6 incorporated places hold 67.9% of those residents; the other 32.1% live outside any of them. Reported testing is thin here: 49 tests over 2008 to 2017, or 3.3 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 9.3.

From Chillicothe to Mooresville, CDC publishes no figure by town: each reads Livingston County's.

The cities and towns in Livingston County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Chillicothe9,114−0.1%62.0%
Wheeling230+4.1%1.6%
Utica221−0.5%1.5%
Chula203+3.0%1.4%
Ludlow112+1.8%0.8%
Mooresville105+4.0%0.7%

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).

Livingston County, Homes

Homes in Livingston County

Livingston County is a place of houses on their own lots: 82% of its 6,376 homes are detached single-family houses, against 70% across Missouri. The homes are older than Missouri's as a whole: half were built before 1969 (1978 for Missouri), and 41% date from before 1960. 68% 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 Livingston County, Missouri, 2019 to 2023
HomesLivingston CountyMissouri
Housing units6,3762,809,501
Detached houses82%70%
In buildings of 5 or more3%13%
Mobile homes5%5%
Built before 196041%28%
Built since 200013%21%
Middle year built19691978
Owner-occupied68%68%

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