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Radon Levels in Lawrence County, Alabama

EPA puts Lawrence County in Zone 1, its highest radon zone, and 16.2% of its 154 reported radon tests (2008 to 2017, laboratory totals) were 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

    16.2%

    5.7 pts below AL

    Lawrence
    16.2%
    Alabama
    21.9%

    154 tests, 2008 to 2017

  • Median result

    1.7pCi/L

    Below action level

    Lawrence
    1.7 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    154

    12th of 27 by tests

    Lawrence
    154
    Madison
    5,178

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    EPA predicts over 4 pCi/L indoors

  • Rank in Alabama

    13 of 27

    Middle half

    Lawrence
    16.2%
    Colbert
    36.2%

    By share, of 27 with 30+ tests

Read a result for Lawrence County

Starts at Lawrence County's median, 1.7 pCi/L

1.7pCi/L

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

EPA’s reading of 1.7 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 1: highest predicted potential

EPA puts all of Lawrence County in and predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county. That is one forecast for the whole county, not a reading of any address in it; homes above EPA's turn up in all three zones.

USGS geologic potential: High across 71% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Reported results by concentration band, Lawrence County, 2008 to 2017, laboratory
Under 2 pCi/L: 54%2 to 4 pCi/L: 30%4 pCi/L and above: 16%

Of 154 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Lawrence County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L8353.9%
2 to 4 pCi/L4629.9%
4 pCi/L and above2516.2%
What these figures count

These are the 154 tests reported to CDC for Lawrence 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

Lawrence County, Compared

Lawrence County radon figures, compared

Calculated by Radon411

Lawrence County's 154 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.7 pCi/L and a maximum of 226.0 pCi/L, and 16.2% reached 4 pCi/L. Alabama as a whole (65 Alabama counties, pooled) comes to 21.9%: 5.7 points higher than here.

Among its state's counties it ranks 13th of 27 Alabama counties with 30 or more tests for the same period. Statewide for the same period, Colbert County reported the highest share (36.2%) and Baldwin County the lowest (0.0%).

Below the action level, 83 tests (53.9%) came in under 2 pCi/L, against 54.3% statewide, and 46 tests (29.9%) fell between 2 and 4, against 23.8% statewide. CDC's ten-year totals for Lawrence County went from 193 tests (2005 to 2014) to 154 (2008 to 2017), the share going from 16.1% to 16.2%.

EPA's 1993 zone map puts Lawrence County in Zone 1, a predicted county average above 4 pCi/L. USGS geology rates 71% of the county's land high radon potential.

Next door, the shares run from 10.1% in Limestone County to 36.2% in Colbert County, with Morgan County, Cullman County and Limestone County below Lawrence County.

Lawrence County against Alabama, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Lawrence County
Lawrence County15416.2%1.7 pCi/LThis county
Alabama, pooled65 counties, pooled12,56921.9%Not pooled+5.7 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+19.5 points
Madison Countyhighest in the state5,17825.2%1.9 pCi/L+9.0 points
Baldwin Countylowest in the state310.0%1.0 pCi/L−16.2 points
Colbert County, ALborders it87136.2%2.7 pCi/L+20.0 points
Lauderdale County, ALborders it1,88527.2%2.2 pCi/L+11.0 points
Franklin County, ALborders it19318.1%1.4 pCi/L+1.9 points
Winston County, ALborders it1216.7%1.6 pCi/L+0.5 points
Morgan County, ALborders it45314.6%1.4 pCi/L−1.6 points
Cullman County, ALborders it7911.4%1.5 pCi/L−4.8 points
Limestone County, ALborders it67410.1%1.3 pCi/L−6.1 points
Where Lawrence County's reported results fell, 2008 to 2017, laboratory, beside Alabama and the United States
ResultLawrence County testsLawrence County shareAlabama shareU.S. shareAgainst Alabama
Under 2 pCi/L8353.9%54.3%39.6%−0.4 points
2 to 4 pCi/L4629.9%23.8%24.7%+6.1 points
4 pCi/L and above2516.2%21.9%35.7%−5.7 points
Lawrence County ranked among the 27 Alabama counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Talladega County8 of 2712418.5%1.6 pCi/L
Franklin County9 of 2719318.1%1.4 pCi/L
Clay County10 of 273917.9%0.9 pCi/L
Jackson County11 of 2722317.5%1.5 pCi/L
Autauga County12 of 273517.1%0.9 pCi/L
Lawrence County13 of 2715416.2%1.7 pCi/L
Marshall County14 of 2719915.1%1.3 pCi/L
Morgan County15 of 2745314.6%1.4 pCi/L
St. Clair County16 of 279314.0%1.2 pCi/L
Blount County17 of 274413.6%2.0 pCi/L
DeKalb County18 of 276813.2%0.9 pCi/L
Lawrence County ten-year laboratory totals, against Alabama's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestAlabama, pooledChange from the row before
2008 to 201715416.2%1.7 pCi/L226.0 pCi/L21.9%+0.6 points
2007 to 201616715.6%1.6 pCi/L226.0 pCi/L22.0%+0.7 points
2006 to 201517514.9%1.7 pCi/L226.0 pCi/L22.0%−1.2 points
2005 to 201419316.1%1.6 pCi/L226.0 pCi/L22.4%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 splits Lawrence County: 71.1% of its land is high radon potential and 28.9% moderate. The map puts 71.1% of Lawrence County in the area it calls Interior Low Plateaus and 28.1% in Appalachian Plateau, with one smaller area beside them. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 9, in the moderate band (9 to 11).

USGS's geologic areas under Lawrence County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Interior Low PlateausMississippian carbonate rocks and shales.High1271.1%
Appalachian PlateauLimestone, sandstone, carbonaceous shale, coalModerate928.1%
Inner Coastal PlainMarly sandy clay, chalk, and glauconitic sands.Moderate100.8%

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

Lawrence County has more high-potential ground than Alabama as a whole: 71.1% of its land against 14.3%. Of the 7 counties that border it, 4 have more high-potential ground, Limestone County the most at 100%.

Share of land by USGS radon potential: Lawrence County, the 7 counties bordering it and Alabama
AreaEPA zoneLow potentialModerate potentialHigh potential
Lawrence CountyZone 1None28.9%71.1%
Winston CountyZone 2None100%None
Colbert CountyZone 1None1.5%98.5%
Morgan CountyZone 1None23.5%76.5%
Limestone CountyZone 1NoneNone100%
Franklin CountyZone 1None50.6%49.4%
Lauderdale CountyZone 112.2%None87.8%
Cullman CountyZone 2None100%None
Alabama67 counties, pooled by land areaVaries35.2%50.4%14.3%

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 Alabama's program says
Phone
(334) 290-6244

What it means

Lawrence County, Questions

Questions about radon in Lawrence County

Are radon levels high in Lawrence County?

Over the 2008 to 2017 laboratory totals, 16.2% of the radon tests reported to CDC for Lawrence County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.7 pCi/L. Of 27 Alabama counties with 30 or more tests for the same period, 12 reported a higher share; pooled, the state comes to 21.9%.

Which counties border Lawrence County?

Lawrence County borders 7 counties: Winston County, Colbert County, Morgan County, Limestone County, Franklin County, Lauderdale County and Cullman County.

Products

Lawrence County, Products

Testing a home in Lawrence County

In Lawrence County, 16.2% of 154 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 21.9% pooled across Alabama. In Zone 1 the year-round level in Lawrence County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.

Test kits and monitors3

See every kit and monitor

Lawrence County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Lawrence County

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 33,843 residents in Lawrence County for July 1, 2025, 758 more than in 2020 (+2.3%). That works out to 49 people per square mile of land. No town dominates: Moulton, the largest, has 3,436 residents, 10.2% of the total. Testing is reported here more often than across the state: CDC's 154 reported tests for 2008 to 2017 come to 4.6 for every 1,000 residents (2025 estimate), against 2.4 for Alabama.

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

The cities and towns in Lawrence County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Moulton3,436+1.3%10.2%
Trinityextends beyond Lawrence County2,638+4.0%Counted whole
Town Creek1,067+1.0%3.2%
Courtland594+2.2%1.8%
North Courtland500+2.9%1.5%
Hillsboro419+0.7%1.2%

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). A place that extends beyond Lawrence County is counted whole, so it has no share.

Lawrence County, Homes

Homes in Lawrence County

Of Lawrence County's 15,317 homes, 66% are detached houses, against 69% across Alabama; 28% are mobile homes. Half of its homes were built before 1990, close to Alabama's 1985: 11% date from before 1960 and 28% from 2000 or later. Owners live in 81% of the occupied homes (Alabama: 70%), so for most households a test and a fix are their own to order.

Homes in Lawrence County, Alabama, 2019 to 2023
HomesLawrence CountyAlabama
Housing units15,3172,316,192
Detached houses66%69%
In buildings of 5 or more3%12%
Mobile homes28%13%
Built before 196011%16%
Built since 200028%27%
Middle year built19901985
Owner-occupied81%70%

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