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Georgia Radon Map and Levels by County

Georgia's counties span all three EPA radon zones. 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

    24.8%

    10.9 pts below U.S.

    Georgia
    24.8%
    U.S.
    35.7%

    30,152 tests across 129 counties, 2008 to 2017

  • Rank among states

    28 of 47

    Middle of the states

    Georgia
    24.8%
    North Dakota
    59.3%

    By share, every state pooled the same way, 2008 to 2017

  • Counties in EPA Zone 1

    4 of 159

    Some at highest potential

    Zone 1
    4
    Zone 2
    55

    Most counties sit in Zone 3; Zone 1 is the highest potential

  • Highest county

    48.3%

    Barrow County

    Barrow
    48.3%
    Richmond
    0.0%

    Counties with 30+ tests, 2008 to 2017

Read a result for Georgia

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. 24.8% of Georgia's reported tests reached 4 pCi/L, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Georgia, At a glance

Georgia at a glance

Predicted: EPA radon zone

159 of 159 counties classified

EPA classifies counties, not states. Of the 159 counties in Georgia with a zone, 4 are in Zone 1, 55 in Zone 2 and 100 in Zone 3.

  • Zone 1: Highest predicted potentialgreater than 4 pCi/L4 of 159 counties · 2.5%
  • Zone 2: Moderate predicted potential2 to 4 pCi/L55 of 159 counties · 34.6%
  • Zone 3: Lower predicted potentialless than 2 pCi/L100 of 159 counties · 62.9%

An EPA radon zone predicts a whole county. It is not intended to determine whether any individual home should be tested: homes with elevated levels occur in all three zones, and EPA recommends testing every home regardless of zone.

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

CDC test figures, county by county

CDC publishes Georgia's radon test figures by county: 139 of its 159 counties have one. Each one's share is in the county list.

How to read these figures

Georgia, Compared

Georgia radon figures, compared

Calculated by Radon411
Georgia, 2008 to 2017, laboratory
24.8%
of 30,152 tests at or above 4 pCi/L, pooled
Against the U.S.
−10.9points
35.7% pooled
Rank among the states
28 of 47
1 is the highest share
Counties with 30 or more tests
57
Highest
48.3%
Barrow County
Lowest
0.0%
Richmond County

About 2 in 10 of the 30,152 tests reported for Georgia over the 2008 to 2017 laboratory totals came back at or above 4 pCi/L (24.8%, 129 counties pooled). That is 28th of 47 states with county figures for the period; Oregon (25.4%) above it and New York (24.5%) below.

By band, 22 counties at 30% to 50%, 27 counties at 15% to 30%, 5 counties at 5% to 15%, 3 counties at under 5%. Its 57 counties with 30 or more tests run from 0.0% in Richmond County to 48.3% in Barrow County; in 0 of them half or more of the reported tests reached 4 pCi/L.

EPA's 1993 map puts 4 of its 159 classified counties in Zone 1; the tests reported since bear that out at 24.8%. The national pool for the same period is 35.7%, so Georgia runs 10.9 points below the country.

Across its 4 overlapping ten-year totals, the share went from 23.2% (2005 to 2014) to 24.8% (2008 to 2017), within 2 points, with 2008 to 2017 the highest at 24.8%.

Georgia ranked among 47 states by pooled share of tests at or above 4 pCi/L, 2008 to 2017, laboratory
StateRankCountiesTestsAt or above 4 pCi/L
New Mexico23 of 47293,72128.5%
Michigan24 of 4783114,40726.9%
Connecticut25 of 47825,57226.5%
Washington26 of 47398,20125.5%
Oregon27 of 473423,95125.4%
Georgia28 of 4712930,15224.8%
New York29 of 476297,14524.5%
Maryland30 of 472447,94123.9%
Massachusetts31 of 4714234,15223.8%
Rhode Island32 of 47537,87423.8%
Arkansas33 of 475866823.2%
Georgia's highest and lowest counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/L
Barrow County1 of 5732148.3%
Douglas County2 of 5735547.3%
Gilmer County3 of 5729046.6%
Lumpkin County4 of 5713646.3%
Fannin County5 of 5730044.7%
Union County6 of 5727644.6%
Walton County7 of 5783042.2%
Carroll County8 of 5719040.5%
Hart County9 of 5710740.2%
Jackson County10 of 5746040.0%
Richmond County57 of 57320.0%
Chatham County56 of 57450.0%
Bibb County55 of 57991.0%
Muscogee County54 of 571065.7%
Columbia County53 of 576311.1%
Georgia's counties with 30 or more tests, by their own share at or above 4 pCi/L, 2008 to 2017, laboratory
ShareCountiesTheir testsFor example
50% or more00None
30% to 50%2210,391Barrow County, Douglas County, Gilmer County
15% to 30%2716,786Rockdale County, Jones County, Rabun County
5% to 15%52,198Forsyth County, Clarke County, Houston County
Under 5%3176Bibb County, Chatham County, Richmond County
Georgia ten-year laboratory totals, pooled, against the United States
PeriodCountiesTestsAt or above 4 pCi/LUnited StatesChange from the row before
2008 to 201712930,15224.8%35.7%+0.9 points
2007 to 201613729,45523.9%35.8%+0.2 points
2006 to 201513527,81823.7%36.3%+0.5 points
2005 to 201413325,27923.2%36.0%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period. CDC publishes no state or national figure.

Georgia, Counties

Georgia counties by EPA zone

Predicted

All 159 counties, grouped by the zone EPA predicts and ordered by their reported share at or above 4 pCi/L, under Georgia's map. Each county has a page of its own.

Georgia radon map by county: EPA radon zones. Map of Georgia's 159 counties shaded by EPA radon zone: Zone 1 in red-orange, Zone 2 in amber, Zone 3 in pale sand. 4 in Zone 1, 55 in Zone 2, 100 in Zone 3.
Georgia radon map by countyEPA radon zones for Georgia's counties: 4 counties in Zone 1, 55 counties in Zone 2, 100 counties in Zone 3.A prediction for each county, not a reading of any home; elevated homes occur in all three zones.

The 12 highest in Georgia, 2008 to 2017

Zone 1: highest predicted potential4

Local help

Georgia, Local resources

Local resources in Georgia

Who to ask in Georgia: its radon program, test kits and professionals.

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

Georgia, Questions

Questions about radon in Georgia

Is radon a problem in Georgia?

Of the 159 counties in Georgia that EPA's Map of Radon Zones classifies, 4 carry Zone 1 (the highest predicted potential), 55 Zone 2 and 100 Zone 3. Pooled from 129 counties, 24.8% of the 30,152 radon tests reported to CDC over the 2008 to 2017 laboratory totals were at or above 4 pCi/L, 28th of 47 states.

Which Georgia counties are in EPA radon Zone 1?

Zone 1 holds 4 counties in Georgia: Cobb County, DeKalb County, Fulton County, Gwinnett County.

Who does radon mitigation in Georgia?

3 radon businesses are listed for Georgia, for testing, mitigation or both; each listing names the licensing list it was read from.

Which Georgia counties have the highest radon?

Barrow County 48.3% (321 tests) leads Georgia by the share of reported tests at or above 4 pCi/L, 2008 to 2017, laboratory, then Douglas County 47.3% (355 tests), Gilmer County 46.6% (290 tests), Lumpkin County 46.3% (136 tests), Fannin County 44.7% (300 tests).

Which EPA region is Georgia in?

Georgia is in EPA Region 4: Southeast.

Products

Georgia, Products

Testing a home in Georgia

24.8% of the 30,152 tests reported to CDC for Georgia over the 2008 to 2017 laboratory totals reached 4 pCi/L: a short-term kit (2 to 90 days) gives a first answer in days, a long-term test the year-round average. A short-term kit (2 to 90 days) is the quick first check for a home in Georgia; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Georgia homes, compared

Explore

Cities in Georgia with their own page

Radon data is published by county, not by city. Each city page sets the figures of the counties the city lies in side by side.