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Radon Levels in Troup County, Georgia

EPA puts Troup County in Zone 2, its middle radon zone, and 33.9% of its 56 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

    33.9%

    9.1 pts above GA

    Troup
    33.9%
    Georgia
    24.8%

    56 tests, 2008 to 2017

  • Median result

    2.9pCi/L

    Below action level

    Troup
    2.9 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    56

    49th of 57 by tests

    Troup
    56
    Fulton
    4,858

    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 Georgia

    15 of 57

    Middle half

    Troup
    33.9%
    Barrow
    48.3%

    By share, of 57 with 30+ tests

Read a result for Troup County

Starts at Troup County's median, 2.9 pCi/L

2.9pCi/L

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

EPA’s reading of 2.9 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. Troup County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Troup County, At a glance

Troup County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Troup 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 Troup County, 2008 to 2017, laboratory

Reported results by concentration band, Troup County, 2008 to 2017, laboratory
Under 2 pCi/L: 37%2 to 4 pCi/L: 29%4 pCi/L and above: 34%

Of 56 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Troup County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L2137.5%
2 to 4 pCi/L1628.6%
4 pCi/L and above1933.9%
What these figures count

These are the 56 tests reported to CDC for Troup 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

Troup County, Compared

Troup County radon figures, compared

Calculated by Radon411

In Troup County, about 3 in 10 reported tests over the 2008 to 2017 laboratory totals (19 of 56) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 1.8 points lower. Across 129 Georgia counties pooled together, 24.8% of tests reached that level, so Troup County runs 9.1 points above its state.

Of 2 neighbours with a figure, none reported a larger share at or above 4 pCi/L; the spread is 15.7% (Harris County) to 19.2% (Coweta County). By share, Troup County is 15th of 57 Georgia counties with 30 or more tests for the same period.

Half the tests came in under 2.9 pCi/L and half over it; the single highest reached 34.6 pCi/L. Below the action level, 21 tests (37.5%) came in under 2 pCi/L, against 44.0% statewide, and 16 tests (28.6%) fell between 2 and 4, against 31.2% statewide.

Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 33.9% share point the same way here. USGS geology rates 100% of the county's land moderate radon potential.

CDC's ten-year totals for Troup County went from 57 tests (2005 to 2014) to 56 (2008 to 2017), the share going from 26.3% to 33.9%.

Troup County against Georgia, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Troup County
Troup County5633.9%2.9 pCi/LThis county
Georgia, pooled129 counties, pooled30,15224.8%Not pooled−9.1 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+1.8 points
Barrow Countyhighest in the state32148.3%3.8 pCi/L+14.4 points
Richmond Countylowest in the state320.0%1.4 pCi/L−33.9 points
Randolph County, ALborders it1540.0%3.7 pCi/L+6.1 points
Heard County, GAborders it1926.3%1.8 pCi/L−7.6 points
Coweta County, GAborders it54819.2%2.0 pCi/L−14.7 points
Harris County, GAborders it5115.7%1.9 pCi/L−18.2 points
Meriwether County, GAborders it224.5%1.6 pCi/L−29.4 points
Chambers County, ALborders it30.0%0.8 pCi/L−33.9 points
Where Troup County's reported results fell, 2008 to 2017, laboratory, beside Georgia and the United States
ResultTroup County testsTroup County shareGeorgia shareU.S. shareAgainst Georgia
Under 2 pCi/L2137.5%44.0%39.6%−6.5 points
2 to 4 pCi/L1628.6%31.2%24.7%−2.6 points
4 pCi/L and above1933.9%24.8%35.7%+9.1 points
Troup County ranked among the 57 Georgia counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Jackson County10 of 5746040.0%3.2 pCi/L
Hall County11 of 571,30339.8%3.2 pCi/L
Pickens County12 of 5713337.6%3.1 pCi/L
Habersham County13 of 5712837.5%3.1 pCi/L
Banks County14 of 575735.1%2.8 pCi/L
Troup County15 of 575633.9%2.9 pCi/L
Spalding County16 of 5710733.6%2.9 pCi/L
Oglethorpe County17 of 577332.9%2.5 pCi/L
Gwinnett County18 of 574,18732.4%2.7 pCi/L
Towns County19 of 5714431.9%2.8 pCi/L
Gordon County20 of 573531.4%2.1 pCi/L
Troup County ten-year laboratory totals, against Georgia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestGeorgia, pooledChange from the row before
2008 to 20175633.9%2.9 pCi/L34.6 pCi/L24.8%+6.0 points
2007 to 20166127.9%2.7 pCi/L34.6 pCi/L23.9%+1.2 points
2006 to 20156026.7%2.6 pCi/L34.6 pCi/L23.7%+0.4 points
2005 to 20145726.3%2.5 pCi/L16.7 pCi/L23.2%First on file

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

Troup County, Geology

The ground under Troup County

Predicted

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

USGS's geologic areas under Troup County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Georgiabama Thrust Stack (South)Schist, amphibolite and granite.Moderate9100%

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

Troup County beside the ground around it

Troup County has more moderate-potential ground than Georgia as a whole: 100% of its land against 26.5%. Of the 6 counties that border it, 1 has more high-potential ground, Randolph County, AL the most at 13.8%.

Share of land by USGS radon potential: Troup County, the 6 counties bordering it and Georgia
AreaEPA zoneLow potentialModerate potentialHigh potential
Troup CountyZone 2None100%None
Meriwether CountyZone 2None100%None
Heard CountyZone 2None100%None
Chambers County, ALZone 393.4%6.6%None
Harris CountyZone 215.3%84.7%None
Coweta CountyZone 2None100%None
Randolph County, ALZone 216.6%69.6%13.8%
Georgia159 counties, pooled by land areaVaries73.1%26.5%None

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

Local help

Troup County, Local resources

Radon testing and mitigation in Troup County

What Georgia's program says
Licensing of radon professionals
There are no laws mandating a mitigator receive certification in Georgia, however, many mitigators choose to get certified by one of two national programs.

What it means

Troup County, Questions

Questions about radon in Troup County

Are radon levels high in Troup County?

Over the 2008 to 2017 laboratory totals, 33.9% of the radon tests reported to CDC for Troup County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.9 pCi/L. Of 57 Georgia counties with 30 or more tests for the same period, 14 reported a higher share; pooled, the state comes to 24.8%.

Which counties border Troup County?

Troup County borders 6 counties: Meriwether County, GA, Heard County, GA, Chambers County, AL, Harris County, GA, Coweta County, GA and Randolph County, AL.

Products

Troup County, Products

Testing a home in Troup County

In Troup County, 33.9% of 56 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 24.8% pooled across Georgia. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Troup County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Troup County homes, compared

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Troup County, Bordering counties

Counties bordering Troup County

Calculated by Radon411

Troup County, Cities and towns

Cities and towns in Troup County

The Census Bureau estimates 72,844 residents in Troup County for July 1, 2025, 3,459 more than in 2020 (+5.0%). That works out to 176 people per square mile of land. Its largest town, LaGrange, has 34,730 residents, 47.7% of the total. Reported testing is thin here: 56 tests over 2008 to 2017, or 0.8 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.7.

From LaGrange to Hogansville, CDC publishes no figure by town: each reads Troup County's.

The cities and towns in Troup County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
LaGrange34,730+10.7%47.7%
West Pointextends beyond Troup County3,661−0.5%Counted whole
Hogansville3,290+1.0%4.5%

3 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 Troup County is counted whole, so it has no share.

Troup County, Homes

Homes in Troup County

Of Troup County's 29,255 homes, 72% are detached houses, against 66% across Georgia; 14% are in buildings of five or more homes. Half of its homes were built before 1984, close to Georgia's 1991: 23% date from before 1960 and 27% from 2000 or later. 58% 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 Troup County, Georgia, 2019 to 2023
HomesTroup CountyGeorgia
Housing units29,2554,483,873
Detached houses72%66%
In buildings of 5 or more14%16%
Mobile homes6%8%
Built before 196023%12%
Built since 200027%33%
Middle year built19841991
Owner-occupied58%65%

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