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Radon Levels in Macon County, Alabama

EPA puts Macon County in Zone 2, its middle radon zone, and only 9 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

    22.2%

    Elmore County

    Elmore
    22.2%
    Montgomery
    9.7%

    3 of 6 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    12.3%

    Lee County, 25 miles

    Lee
    12.3%
    Alabama
    21.9%

    Share at 4+ pCi/L, 81 tests, 2008 to 2017

  • Ground above low

    99.9%

    35.3 pts above Alabama

    Macon
    99.9%
    Alabama
    64.7%

    Share of land USGS rates moderate or high potential

  • Tests reported

    9

    Too few for a share

    Macon
    9
    Needed
    30

    2008 to 2017, laboratory

  • 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

Read a result for Macon 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

Macon County, At a glance

Macon County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Macon 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 Macon County, 2008 to 2017, laboratory

CDC holds 9 reported tests for Macon County over the 2008 to 2017 laboratory totals, with a median of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Macon County beside the counties around it is how this page reads it.

What these figures count

Only 9 tests were reported to CDC for Macon 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

Macon County, Compared

Macon County radon figures, compared

Calculated by Radon411

CDC's largest figure for Macon County rests on 9 tests over the 2008 to 2017 laboratory totals, 2 of them at or above 4 pCi/L, so each test moves its share by 11.1 points and no rank or comparison is drawn from it. Results reached as high as 7.0 pCi/L, with a middle value of 0.1 pCi/L.

Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Elmore County reported the largest share at or above 4 pCi/L, 22.2%, and Montgomery County the smallest, 9.7%, with Lee County at 12.3% between. Farther out, Autauga County (56 miles away) at 17.1%, Clay County (62 miles away) at 17.9% and Talladega County (74 miles away) at 18.5% have figures too. Pooled across 65 Alabama counties, 21.9% of reported tests reached that level; across every county in the country with a figure, 35.7%.

Statewide for the same period, Colbert County reported the highest share (36.2%) and Baldwin County the lowest (0.0%). EPA's 1993 map puts Macon County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.

Alabama, the United States and the counties around Macon County, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedian
Alabama, pooled65 counties, pooled12,56921.9%Not pooled
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled
Colbert Countyhighest in the state87136.2%2.7 pCi/L
Baldwin Countylowest in the state310.0%1.0 pCi/L
Elmore County, ALborders it3622.2%1.2 pCi/L
Lee County, ALborders it8112.3%1.3 pCi/L
Montgomery County, ALborders it1039.7%0.9 pCi/L
Tallapoosa County, ALborders it166.3%0.9 pCi/L
Russell County, ALborders it30.0%0.9 pCi/L
The nearest Alabama counties to Macon County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Lee County25 mi8112.3%1.3 pCi/L
Elmore County30 mi3622.2%1.2 pCi/L
Montgomery County32 mi1039.7%0.9 pCi/L
Autauga County56 mi3517.1%0.9 pCi/L
Clay County62 mi3917.9%0.9 pCi/L
Talladega County74 mi12418.5%1.6 pCi/L
Shelby County83 mi37311.3%1.3 pCi/L
Cleburne County89 mi6918.8%1.5 pCi/L
Macon County ten-year laboratory totals, against Alabama's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestAlabama, pooledChange from the row before
2008 to 2017922.2%0.1 pCi/L7.0 pCi/L21.9%−77.8 points
2007 to 20162100.0%6.5 pCi/L7.0 pCi/L22.0%Level
2006 to 20152100.0%6.5 pCi/L7.0 pCi/L22.0%Level
2005 to 20142100.0%6.5 pCi/L7.0 pCi/L22.4%First on file

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

Macon County, Geology

The ground under Macon County

Predicted

Most of the ground under Macon County is one class on USGS's geologic map: 99.9% of its land is moderate radon potential, with 0.1% low. 99.2% of it lies in the area the map calls Inner Coastal Plain, to which USGS gives a radon index of 10, in the moderate band (9 to 11).

USGS's geologic areas under Macon County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Inner Coastal PlainMarly sandy clay, chalk, and glauconitic sands.Moderate1099.2%
Southern PiedmontPaleozoic carbonate and metamorphic rocks.Moderate90.8%

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

Macon County beside the ground around it

Across Alabama 14.3% of the land is rated high; none of Macon County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Bullock County the most at 100%.

Share of land by USGS radon potential: Macon County, the 6 counties bordering it and Alabama
AreaEPA zoneLow potentialModerate potentialHigh potential
Macon CountyZone 20.1%99.9%None
Bullock CountyZone 2None100%None
Lee CountyZone 217.1%82.9%None
Elmore CountyZone 29.9%90.1%None
Montgomery CountyZone 2None100%None
Russell CountyZone 21.0%99.0%None
Tallapoosa CountyZone 357.3%42.7%None
Alabama67 counties, pooled by land areaVaries35.2%50.4%14.3%

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

What it means

Macon County, Questions

Questions about radon in Macon County

Are radon levels high in Macon County?

Over the 2008 to 2017 laboratory totals, 22.2% of the radon tests reported to CDC for Macon County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Elmore County reported the largest share at or above 4 pCi/L, 22.2%, and Montgomery County the smallest, 9.7%, with Lee County at 12.3% between.

Which counties border Macon County?

Macon County borders 6 counties: Bullock County, Lee County, Elmore County, Montgomery County, Russell County and Tallapoosa County.

Products

Macon County, Products

Testing a home in Macon County

No CDC figure names Macon County; the nearest county with one, Lee County (25 miles away), reported 12.3% of its tests at or above 4 pCi/L over the 2008 to 2017 laboratory totals, the only reading nearby until a test of this home. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Macon County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Macon County homes, compared

Explore

Macon County, Bordering counties

Counties bordering Macon County

Calculated by Radon411

Macon County, Cities and towns

Cities and towns in Macon County

Macon County has been losing residents: from 19,464 in 2020 to 18,132 on July 1, 2025, a fall of 6.8% by the Census Bureau's estimates. That works out to 30 people per square mile of land. Its largest town, Tuskegee, has 8,644 residents, 47.7% of the total. Reported testing is thin here: 9 tests over 2008 to 2017, or 0.5 for every 1,000 residents (2025 estimate), where Alabama as a whole comes to 2.4.

From Tuskegee to Shorter, CDC publishes no figure by town: each reads Macon County's.

The cities and towns in Macon County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Tuskegee8,644−7.5%47.7%
Notasulgaextends beyond Macon County876−4.6%Counted whole
Franklin573−2.7%3.2%
Shorter356−7.0%2.0%

4 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 Macon County is counted whole, so it has no share.

Macon County, Homes

Homes in Macon County

Of Macon County's 9,664 homes, 64% are detached houses, against 69% across Alabama; 19% are mobile homes. Half of its homes were built before 1979, close to Alabama's 1985: 16% date from before 1960 and 15% from 2000 or later. 65% of occupied homes are lived in by their owner (Alabama: 70%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Macon County, Alabama, 2019 to 2023
HomesMacon CountyAlabama
Housing units9,6642,316,192
Detached houses64%69%
In buildings of 5 or more10%12%
Mobile homes19%13%
Built before 196016%16%
Built since 200015%27%
Middle year built19791985
Owner-occupied65%70%

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