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Radon Levels in Lee County, Georgia

EPA puts Lee County in Zone 3, its lowest radon zone, and only 5 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

  • Highest bordering

    0.0%

    Dougherty County

    Dougherty
    0.0%

    1 of 5 neighbours have 30+ tests, 2007 to 2016

  • Nearest county

    0.0%

    Dougherty County, 18 miles

    Dougherty
    0.0%
    Georgia
    23.9%

    Share at 4+ pCi/L, 32 tests, 2007 to 2016

  • Ground above low

    None

    26.5 pts below Georgia

    Lee
    0.0%
    Georgia
    26.5%

    Share of land USGS rates moderate or high potential

  • Tests reported

    5

    Too few for a share

    Lee
    5
    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 Lee 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.

The data

Lee County, At a glance

Lee County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

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

CDC holds 5 reported tests for Lee County over the 2008 to 2017 laboratory totals, with a median of 1.0 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Lee County beside the counties around it is how this page reads it.

What these figures count

Only 5 tests were reported to CDC for Lee 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

Lee County, Compared

Lee County radon figures, compared

Calculated by Radon411

CDC's largest figure for Lee County rests on 5 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 20.0 points and no rank or comparison is drawn from it. Results reached as high as 2.6 pCi/L, with a middle value of 1.0 pCi/L.

Dougherty County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L. Farther out, Houston County (54 miles away) at 8.2%, Muscogee County (66 miles away) at 2.1% and Bibb County (75 miles away) at 0.0% have figures too. Pooled across 137 Georgia counties, 23.9% of reported tests reached that level; across every county in the country with a figure, 35.8%.

Statewide for the same period, Barrow County reported the highest share (51.0%) and Dougherty County the lowest (0.0%). EPA's 1993 map puts Lee 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.

Georgia, the United States and the counties around Lee County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Georgia, pooled137 counties, pooled29,45523.9%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Barrow Countyhighest in the state34151.0%4.0 pCi/L
Richmond Countylowest in the state350.0%1.3 pCi/L
Crisp County, GAborders it250.0%4.3 pCi/L
Sumter County, GAborders it520.0%3.7 pCi/L
Dougherty County, GAborders it320.0%0.6 pCi/L
The nearest Georgia counties to Lee County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Dougherty County18 mi320.0%0.6 pCi/L
Houston County54 mi618.2%1.5 pCi/L
Muscogee County66 mi952.1%0.8 pCi/L
Bibb County75 mi960.0%1.0 pCi/L
Harris County80 mi4610.9%1.9 pCi/L
Laurens County86 mi3116.1%0.9 pCi/L
Monroe County86 mi23523.8%1.8 pCi/L
Jones County92 mi3426.5%2.0 pCi/L
Lee County ten-year laboratory totals, against Georgia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestGeorgia, pooledChange from the row before
2008 to 201750.0%1.0 pCi/L2.6 pCi/L24.8%Level
2007 to 201650.0%1.0 pCi/L2.6 pCi/L23.9%Level
2006 to 201550.0%1.0 pCi/L2.6 pCi/L23.7%Level
2005 to 201450.0%1.0 pCi/L2.6 pCi/L23.2%First on file

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

Lee County, Geology

The ground under Lee County

Predicted

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

USGS's geologic areas under Lee County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Coastal PlainCretaceous and Tertiary marine and coastal sediments including limestone, sandstone, sand, silt, and clay. Coastal plan sands containing glauconite may generate locally elevated radon.Low8100%

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

Lee County beside the ground around it

Across Georgia 26.5% of the land is rated moderate; none of Lee County's is. None of the 5 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Lee County, the 5 counties bordering it and Georgia
AreaEPA zoneLow potentialModerate potentialHigh potential
Lee CountyZone 3100%NoneNone
Terrell CountyZone 3100%NoneNone
Dougherty CountyZone 3100%NoneNone
Sumter CountyZone 3100%NoneNone
Worth CountyZone 3100%NoneNone
Crisp CountyZone 3100%NoneNone
Georgia159 counties, pooled by land areaVaries73.1%26.5%None

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

What it means

Lee County, Questions

Questions about radon in Lee County

Are radon levels high in Lee County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Lee County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.0 pCi/L. Dougherty County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L.

Which counties border Lee County?

Lee County borders 5 counties: Terrell County, Dougherty County, Sumter County, Worth County and Crisp County.

Products

Lee County, Products

Testing a home in Lee County

No CDC figure names Lee County; the nearest county with one, Dougherty County (18 miles away), reported 0.0% 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 Lee County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Lee County homes, compared

Explore

Lee County, Bordering counties

Counties bordering Lee County

Calculated by Radon411

Lee County, Cities and towns

Cities and towns in Lee County

The Census Bureau estimates 34,179 residents in Lee County for July 1, 2025, 968 more than in 2020 (+2.9%). That works out to 96 people per square mile of land. No town dominates: Leesburg, the largest, has 3,597 residents, 10.5% of the total. Together its 2 incorporated places hold 12.4% of those residents; the other 87.6% live outside any of them. Reported testing is thin here: 5 tests over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.7.

From Leesburg to Smithville, CDC publishes no figure by town: each reads Lee County's.

The cities and towns in Lee County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Leesburg3,597+3.0%10.5%
Smithville627+3.3%1.8%

2 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).

Lee County, Homes

Homes in Lee County

Lee County is a place of houses on their own lots: 80% of its 12,862 homes are detached single-family houses, against 66% across Georgia. Half of its homes were built before 1998, close to Georgia's 1991: 2% date from before 1960 and 44% from 2000 or later. 74% of occupied homes are lived in by their owner (Georgia: 65%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Lee County, Georgia, 2019 to 2023
HomesLee CountyGeorgia
Housing units12,8624,483,873
Detached houses80%66%
In buildings of 5 or more5%16%
Mobile homes8%8%
Built before 19602%12%
Built since 200044%33%
Middle year built19981991
Owner-occupied74%65%

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