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Radon Levels in Polk County, Georgia

EPA puts Polk County in Zone 3, its lowest radon zone, and only 21 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

    23.5%

    Bartow County

    Bartow
    23.5%
    Floyd
    17.1%

    4 of 6 neighbours have 30+ tests, 2007 to 2016

  • Nearest county

    17.1%

    Floyd County, 18 miles

    Floyd
    17.1%
    Georgia
    23.9%

    Share at 4+ pCi/L, 117 tests, 2007 to 2016

  • Ground above low

    22.7%

    3.9 pts below Georgia

    Polk
    22.7%
    Georgia
    26.5%

    Share of land USGS rates moderate or high potential

  • Tests reported

    26

    Too few for a share

    Polk
    26
    Needed
    30

    2007 to 2016, 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 Polk 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

Polk County, At a glance

Polk County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Polk 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 77% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

CDC holds 21 reported tests for Polk County over the 2008 to 2017 laboratory totals, with a median of 4.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Polk County beside the counties around it is how this page reads it.

What these figures count

Only 21 tests were reported to CDC for Polk 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

Polk County, Compared

Polk County radon figures, compared

Calculated by Radon411

CDC's largest figure for Polk County rests on 26 tests over the 2007 to 2016 laboratory totals, 13 of them at or above 4 pCi/L, so each test moves its share by 3.8 points and no rank or comparison is drawn from it. Results reached as high as 11.9 pCi/L, with a middle value of 4.1 pCi/L.

Of the counties bordering it, 4 have a figure over the 2007 to 2016 laboratory totals: Bartow County reported the largest share at or above 4 pCi/L, 23.5%, and Floyd County the smallest, 17.1%, with Paulding County at 22.5% and Cleburne County, AL at 17.7% between. Farther out, Carroll County (30 miles away) at 37.6%, Douglas County (32 miles away) at 44.5% and Cobb County (35 miles away) at 15.5% 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 Polk County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 77% of the county's land low radon potential.

Georgia, the United States and the counties around Polk 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
Dougherty Countylowest in the state320.0%0.6 pCi/L
Haralson County, GAborders it1931.6%1.7 pCi/L
Bartow County, GAborders it18323.5%2.1 pCi/L
Paulding County, GAborders it27622.5%2.2 pCi/L
Cleburne County, ALborders it9617.7%1.6 pCi/L
Floyd County, GAborders it11717.1%1.7 pCi/L
Cherokee County, ALborders it1010.0%1.5 pCi/L
The nearest Georgia counties to Polk County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Floyd County18 mi11717.1%1.7 pCi/L
Paulding County19 mi27622.5%2.2 pCi/L
Bartow County26 mi18323.5%2.1 pCi/L
Carroll County30 mi16537.6%3.1 pCi/L
Douglas County32 mi35344.5%3.4 pCi/L
Cobb County35 mi3,23415.5%1.8 pCi/L
Gordon County39 mi3234.4%2.1 pCi/L
Fulton County44 mi4,61520.3%2.1 pCi/L
Polk County ten-year laboratory totals, against Georgia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestGeorgia, pooledChange from the row before
2008 to 20172157.1%4.9 pCi/L11.9 pCi/L24.8%+7.1 points
2007 to 20162650.0%4.1 pCi/L11.9 pCi/L23.9%+3.8 points
2006 to 20152646.2%3.5 pCi/L11.9 pCi/L23.7%−1.8 points
2005 to 20142548.0%3.7 pCi/L11.9 pCi/L23.2%First on file

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

Polk County, Geology

The ground under Polk County

Predicted

Most of the ground under Polk County is one class on USGS's geologic map: 77.3% of its land is low radon potential, with 1.3% high and 21.4% moderate. The map puts 77.3% of Polk County in the area it calls Rome-Kingston Thrust Stack and 21.4% in Georgiabama Thrust Stack (North), with one smaller area beside them. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).

USGS's geologic areas under Polk County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Rome-Kingston Thrust StackLimestone and shale.Low877.3%
Georgiabama Thrust Stack (North)Gneiss, phyllite, and schist.Moderate921.4%
Northern PiedmontSchist, metagraywake, phyllite, quartz diorite gneiss, amphibolite gneiss, quartz monzonite.High121.3%

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

Polk County beside the ground around it

On high-potential ground Polk County is close to Georgia as a whole: 1.3% of its land against none. Of the 6 counties that border it, 2 have more high-potential ground, Cleburne County, AL the most at 88.1%.

Share of land by USGS radon potential: Polk County, the 6 counties bordering it and Georgia
AreaEPA zoneLow potentialModerate potentialHigh potential
Polk CountyZone 377.3%21.4%1.3%
Haralson CountyZone 2None99.9%0.1%
Paulding CountyZone 2None100%None
Floyd CountyZone 2100%NoneNone
Bartow CountyZone 279.6%20.4%None
Cleburne County, ALZone 1None11.9%88.1%
Cherokee County, ALZone 20.2%91.6%8.2%
Georgia159 counties, pooled by land areaVaries73.1%26.5%None

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

What it means

Polk County, Questions

Questions about radon in Polk County

Are radon levels high in Polk County?

Over the 2008 to 2017 laboratory totals, 57.1% of the radon tests reported to CDC for Polk County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.9 pCi/L. Of the counties bordering it, 4 have a figure over the 2007 to 2016 laboratory totals: Bartow County reported the largest share at or above 4 pCi/L, 23.5%, and Floyd County the smallest, 17.1%, with Paulding County at 22.5% and Cleburne County, AL at 17.7% between.

Which counties border Polk County?

Polk County borders 6 counties: Haralson County, GA, Paulding County, GA, Floyd County, GA, Bartow County, GA, Cleburne County, AL and Cherokee County, AL.

Products

Polk County, Products

Testing a home in Polk County

No CDC figure names Polk County; the nearest county with one, Floyd County (18 miles away), reported 17.1% 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 Polk County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Polk County homes, compared

Explore

Polk County, Bordering counties

Counties bordering Polk County

Calculated by Radon411

Polk County, Cities and towns

Cities and towns in Polk County

Polk County is growing: the Census Bureau puts it at 45,514 residents on July 1, 2025, up 6.0% from 42,929 in 2020. That works out to 147 people per square mile of land. Its largest town, Cedartown, has 10,514 residents, 23.1% of the total. Reported testing is thin here: 26 tests over 2007 to 2016, or 0.6 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.6.

From Cedartown to Taylorsville, CDC publishes no figure by town: each reads Polk County's.

The cities and towns in Polk County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Cedartown10,514+3.4%23.1%
Rockmart5,369+5.2%11.8%
Aragon1,523+5.0%3.3%
Braswellextends beyond Polk County366+0.5%Counted whole
Taylorsvilleextends beyond Polk County271+8.4%Counted whole

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 Polk County is counted whole, so it has no share.

Polk County, Homes

Homes in Polk County

Polk County is a place of houses on their own lots: 77% of its 17,301 homes are detached single-family houses, against 66% across Georgia. The homes are older than Georgia's as a whole: half were built before 1983 (1991 for Georgia), and 23% date from before 1960. 64% 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 Polk County, Georgia, 2019 to 2023
HomesPolk CountyGeorgia
Housing units17,3014,483,873
Detached houses77%66%
In buildings of 5 or more6%16%
Mobile homes11%8%
Built before 196023%12%
Built since 200026%33%
Middle year built19831991
Owner-occupied64%65%

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