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Radon Levels in Livingston County, Michigan

EPA puts Livingston County in Zone 2, its middle radon zone, and high results are common there: 43.1% of the 4,885 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

How to test this homeFind a certified tester

  • Share at 4+ pCi/L

    43.1%

    16.2 pts above MI

    Livingston
    43.1%
    Michigan
    26.9%

    4,885 tests, 2008 to 2017

  • Median result

    3.4pCi/L

    Below action level

    Livingston
    3.4 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    4,885

    6th of 82 by tests

    Livingston
    4,885
    Oakland
    16,224

    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 Michigan

    5 of 82

    Top quarter

    Livingston
    43.1%
    Lenawee
    56.7%

    By share, of 82 with 30+ tests

Read a result for Livingston County

Starts at Livingston County's median, 3.4 pCi/L

3.4pCi/L

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

EPA’s reading of 3.4 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 54% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Reported results by concentration band, Livingston County, 2008 to 2017, laboratory
Under 2 pCi/L: 30%2 to 4 pCi/L: 27%4 pCi/L and above: 43%

Of 4,885 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Livingston County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L1,47530.2%
2 to 4 pCi/L1,30426.7%
4 pCi/L and above2,10643.1%
What these figures count

These are the 4,885 tests reported to CDC for Livingston 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

Livingston County, Compared

Livingston County radon figures, compared

Calculated by Radon411

In Livingston County, about 4 in 10 reported tests over the 2008 to 2017 laboratory totals (2,106 of 4,885) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 7.4 points higher. Across 83 Michigan counties pooled together, 26.9% of tests reached that level, so Livingston County runs 16.2 points above its state.

Of 6 neighbours with a figure, 1 reported a larger share at or above 4 pCi/L and 5 a smaller one; the spread is 21.9% (Genesee County) to 49.7% (Jackson County). By share, Livingston County is 5th of 82 Michigan counties with 30 or more tests for the same period.

Half the tests came in under 3.4 pCi/L and half over it; the single highest reached 141.2 pCi/L. Below the action level, 1,475 tests (30.2%) came in under 2 pCi/L, against 46.4% statewide, and 1,304 tests (26.7%) fell between 2 and 4, against 26.7% statewide.

Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 43.1% share point the same way here. USGS geology rates 54% of the county's land moderate radon potential. CDC also counts 639 tests taken after mitigation in Livingston County for the same period: tests in homes where a fix was already in.

CDC's ten-year totals for Livingston County went from 3,945 tests (2005 to 2014) to 4,885 (2008 to 2017), the share going from 43.8% to 43.1%.

Livingston County against Michigan, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Livingston County
Livingston County4,88543.1%3.4 pCi/LThis county
Michigan, pooled83 counties, pooled114,40726.9%Not pooled−16.2 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled−7.4 points
Lenawee Countyhighest in the state1,90756.7%4.6 pCi/L+13.6 points
Muskegon Countylowest in the state6293.2%1.2 pCi/L−39.9 points
Jackson County, MIborders it2,96449.7%3.9 pCi/L+6.6 points
Washtenaw County, MIborders it8,50041.3%3.2 pCi/L−1.8 points
Shiawassee County, MIborders it1,51531.6%2.5 pCi/L−11.5 points
Oakland County, MIborders it16,22428.8%2.3 pCi/L−14.3 points
Ingham County, MIborders it2,93224.9%2.2 pCi/L−18.2 points
Genesee County, MIborders it1,69921.9%2.0 pCi/L−21.2 points
Where Livingston County's reported results fell, 2008 to 2017, laboratory, beside Michigan and the United States
ResultLivingston County testsLivingston County shareMichigan shareU.S. shareAgainst Michigan
Under 2 pCi/L1,47530.2%46.4%39.6%−16.2 points
2 to 4 pCi/L1,30426.7%26.7%24.7%Level
4 pCi/L and above2,10643.1%26.9%35.7%+16.2 points
Livingston County ranked among the 82 Michigan counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Lenawee County1 of 821,90756.7%4.6 pCi/L
Branch County2 of 821,04855.4%4.4 pCi/L
Hillsdale County3 of 822,08654.8%4.4 pCi/L
Jackson County4 of 822,96449.7%3.9 pCi/L
Livingston County5 of 824,88543.1%3.4 pCi/L
Washtenaw County6 of 828,50041.3%3.2 pCi/L
Dickinson County7 of 8284339.3%3.1 pCi/L
Clinton County8 of 822,31338.5%3.1 pCi/L
Otsego County9 of 821,08038.2%3.2 pCi/L
Ionia County10 of 821,39136.8%2.9 pCi/L
Calhoun County11 of 821,64936.4%3.0 pCi/L
Livingston County ten-year laboratory totals, against Michigan's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestMichigan, pooledChange from the row before
2008 to 20174,88543.1%3.4 pCi/L141.2 pCi/L26.9%−0.2 points
2007 to 20164,53643.3%3.4 pCi/L141.2 pCi/L26.8%−0.6 points
2006 to 20154,28543.9%3.4 pCi/L141.2 pCi/L26.8%+0.1 points
2005 to 20143,94543.8%3.4 pCi/L141.2 pCi/L26.2%First on file

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

Livingston County, State data

Michigan's own radon test data

Measured

What Michigan's own agencies publish about radon tests in Livingston County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What Michigan EGLE reports for the ZIP codes in Livingston County

Michigan EGLE publishes its figures by ZIP code, not by county. These are the 19 ZIP codes that lie wholly or partly in Livingston County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.

ZIP codes in Livingston County
ZIP codeWhat the state reports
4811441% greater than 4 pCi/L, median 3.1 pCi/L, 588 tests
4811642% greater than 4 pCi/L, median 3.3 pCi/L, 746 tests
4813750% greater than 4 pCi/L, median 4.0 pCi/L, 68 tests
481390% greater than 4 pCi/L, median 0.0 pCi/L, 5 tests
4816945% greater than 4 pCi/L, median 3.4 pCi/L, 390 tests
4817831% greater than 4 pCi/L, median 2.4 pCi/L, 372 tests
4818951% greater than 4 pCi/L, median 4.0 pCi/L, 146 tests
4835338% greater than 4 pCi/L, median 2.9 pCi/L, 127 tests
4838056% greater than 4 pCi/L, median 4.5 pCi/L, 81 tests
4841844% greater than 4 pCi/L, median 3.0 pCi/L, 18 tests
4843038% greater than 4 pCi/L, median 2.7 pCi/L, 233 tests
4844233% greater than 4 pCi/L, median 3.2 pCi/L, 81 tests
4845133% greater than 4 pCi/L, median 3.0 pCi/L, 80 tests
4883633% greater than 4 pCi/L, median 2.7 pCi/L, 197 tests
4884329% greater than 4 pCi/L, median 2.5 pCi/L, 1,008 tests
4885535% greater than 4 pCi/L, median 2.8 pCi/L, 339 tests
4887233% greater than 4 pCi/L, median 2.9 pCi/L, 66 tests
4889218% greater than 4 pCi/L, median 1.9 pCi/L, 22 tests
4928553% greater than 4 pCi/L, median 4.2 pCi/L, 17 tests
  • EGLE's figures cover first-time tests only, from organizations willing to provide data.
  • EGLE does not publish figures for a ZIP code with fewer than 5 test results.
  • EGLE says the map is not intended to decide whether a home should be tested: all homes should be tested.
  • ZIP code boundaries are postal delivery areas, not legal or administrative boundaries.
  • A ZIP code that crosses the county line is listed whole; its figures cover all of it.

Measured: Michigan EGLE data, About 10 years to 2026-05-15.

Livingston County, Geology

The ground under Livingston County

Predicted

USGS's geologic map splits Livingston County: 53.6% of its land is moderate radon potential and 46.4% high. The map puts 53.6% of Livingston County in the area it calls South-Central Michigan Basin and 46.4% in Saginaw Lobe Moraine Area. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 12, in the high band (12 to 17).

USGS's geologic areas under Livingston County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
South-Central Michigan BasinSandy and silty glacial deposits derived from sandstones, gray shales, limestones, and dolomites.Moderate1053.6%
Saginaw Lobe Moraine AreaGlacial deposits derived from Sandstone and shale.High1246.4%

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

Livingston County has more high-potential ground than Michigan as a whole: 46.4% of its land against 9.6%. Of the 6 counties that border it, 2 have more high-potential ground, Jackson County the most at 90.6%.

Share of land by USGS radon potential: Livingston County, the 6 counties bordering it and Michigan
AreaEPA zoneLow potentialModerate potentialHigh potential
Livingston CountyZone 2None53.6%46.4%
Ingham CountyZone 2None100%None
Shiawassee CountyZone 224.1%75.9%None
Genesee CountyZone 219.5%80.5%None
Oakland CountyZone 2None56.8%43.2%
Washtenaw CountyZone 1None15.1%84.9%
Jackson CountyZone 1None9.4%90.6%
Michigan83 counties, pooled by land areaVaries45.0%44.3%9.6%

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

Local help

Livingston County, Local resources

Radon testing and mitigation in Livingston County

Listed radon businesses with an address in Livingston County:

Listed radon professionals by town: Howell, Brighton, Fowlerville

What Michigan's program says
Phone
800-723-6642
Email
Radon@Michigan.gov
Licensing of radon professionals
Michigan does not license or regulate radon testing and mitigation contractors.

What it means

Livingston County, Questions

Questions about radon in Livingston County

Are radon levels high in Livingston County?

Over the 2008 to 2017 laboratory totals, 43.1% of the radon tests reported to CDC for Livingston County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.4 pCi/L. Of 82 Michigan counties with 30 or more tests for the same period, 4 reported a higher share; pooled, the state comes to 26.9%.

Which counties border Livingston County?

Livingston County borders 6 counties: Ingham County, Shiawassee County, Genesee County, Oakland County, Washtenaw County and Jackson County.

Products

Livingston County, Products

Testing a home in Livingston County

In Livingston County, 43.1% of 4,885 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 26.9% pooled across Michigan. 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 197,315 residents in Livingston County for July 1, 2025, 3,341 more than in 2020 (+1.7%). That works out to 349 people per square mile of land. Fenton, the largest place on its list (11,774 residents in all), extends beyond Livingston County, so no share of the total is worked out for it. Testing is reported here more often than across the state: CDC's 4,885 reported tests for 2008 to 2017 come to 24.8 for every 1,000 residents (2025 estimate), against 11.3 for Michigan.

From Fenton to Pinckney, 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
Fentonextends beyond Livingston County11,774−1.6%Counted whole
Howell9,896−1.7%5.0%
Brighton7,904+5.9%4.0%
Fowlerville2,874−2.4%1.5%
Pinckney2,333−2.6%1.2%

5 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 Livingston County is counted whole, so it has no share.

Livingston County, Homes

Homes in Livingston County

Livingston County is a place of houses on their own lots: 79% of its 79,520 homes are detached single-family houses, against 72% across Michigan. Much of Livingston County is recent building: 28% of its homes have gone up since 2000 and the middle year built is 1990, against 1972 for Michigan. Owners live in 87% of the occupied homes (Michigan: 73%), so for most households a test and a fix are their own to order.

Homes in Livingston County, Michigan, 2019 to 2023
HomesLivingston CountyMichigan
Housing units79,5204,599,683
Detached houses79%72%
In buildings of 5 or more8%13%
Mobile homes6%5%
Built before 196015%36%
Built since 200028%15%
Middle year built19901972
Owner-occupied87%73%

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