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Radon Levels in Geneva County, Alabama

EPA puts Geneva 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

    6.0%

    Jackson County

    Jackson
    6.0%

    1 of 7 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    9.7%

    Montgomery County, 81 miles

    Montgomery
    9.7%
    Alabama
    21.9%

    Share at 4+ pCi/L, 103 tests, 2008 to 2017

  • Ground above low

    None

    64.7 pts below Alabama

    Geneva
    0.0%
    Alabama
    64.7%

    Share of land USGS rates moderate or high potential

  • Tests reported

    5

    Too few for a share

    Geneva
    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 Geneva 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

Geneva County, At a glance

Geneva County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

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

CDC holds 5 reported tests for Geneva County over the 2008 to 2017 laboratory totals, with a median of 1.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Geneva County beside the counties around it is how this page reads it.

What these figures count

Only 5 tests were reported to CDC for Geneva 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

Geneva County, Compared

Geneva County radon figures, compared

Calculated by Radon411

CDC's largest figure for Geneva 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 2.5 pCi/L, with a middle value of 1.2 pCi/L.

Jackson County, FL, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 6.0% of its tests at or above 4 pCi/L. Farther out, Montgomery County (81 miles away) at 9.7%, Elmore County (105 miles away) at 22.2% and Lee County (108 miles away) at 12.3% 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 Geneva 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.

Alabama, the United States and the counties around Geneva 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
Houston County, ALborders it1323.1%1.3 pCi/L
Walton County, FLborders it1020.0%1.4 pCi/L
Coffee County, ALborders it616.7%2.4 pCi/L
Jackson County, FLborders it676.0%0.7 pCi/L
Dale County, ALborders it10.0%2.1 pCi/L
Covington County, ALborders it20.0%0.6 pCi/L
Holmes County, FLborders it70.0%0.6 pCi/L
The nearest Alabama counties to Geneva County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Montgomery County81 mi1039.7%0.9 pCi/L
Elmore County105 mi3622.2%1.2 pCi/L
Lee County108 mi8112.3%1.3 pCi/L
Autauga County110 mi3517.1%0.9 pCi/L
Baldwin County115 mi310.0%1.0 pCi/L
Mobile County142 mi523.8%0.5 pCi/L
Clay County150 mi3917.9%0.9 pCi/L
Shelby County157 mi37311.3%1.3 pCi/L
Geneva County ten-year laboratory totals, against Alabama's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestAlabama, pooledChange from the row before
2008 to 201750.0%1.2 pCi/L2.5 pCi/L21.9%Level
2007 to 201650.0%1.2 pCi/L2.5 pCi/L22.0%Level
2006 to 201550.0%1.2 pCi/L2.5 pCi/L22.0%Level
2005 to 201440.0%1.7 pCi/L2.5 pCi/L22.4%First on file

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

Geneva County, Geology

The ground under Geneva County

Predicted

USGS's geologic map puts all of Geneva 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 7, in the low band (5 to 8).

USGS's geologic areas under Geneva County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Coastal PlainMarly sandy clay, chalk, and glauconitic sands.Low799.7%

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

Geneva County beside the ground around it

Across Alabama 14.3% of the land is rated high; none of Geneva County's is. None of the 7 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Geneva County, the 7 counties bordering it and Alabama
AreaEPA zoneLow potentialModerate potentialHigh potential
Geneva CountyZone 3100%NoneNone
Holmes County, FLZone 3100%NoneNone
Coffee CountyZone 3100%NoneNone
Dale CountyZone 3100%NoneNone
Houston CountyZone 3100%NoneNone
Walton County, FLZone 393.0%NoneNone
Covington CountyZone 3100%NoneNone
Jackson County, FLZone 3100%NoneNone
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

Geneva County, Questions

Questions about radon in Geneva County

Are radon levels high in Geneva County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Geneva County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.2 pCi/L. Jackson County, FL, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 6.0% of its tests at or above 4 pCi/L.

Which counties border Geneva County?

Geneva County borders 7 counties: Holmes County, FL, Coffee County, AL, Dale County, AL, Houston County, AL, Walton County, FL, Covington County, AL and Jackson County, FL.

Products

Geneva County, Products

Testing a home in Geneva County

No CDC figure names Geneva County; the nearest county with one, Montgomery County (81 miles away), reported 9.7% 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. 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 Geneva County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Geneva County homes, compared

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Geneva County, Bordering counties

Counties bordering Geneva County

Calculated by Radon411

Geneva County, Cities and towns

Cities and towns in Geneva County

The Census Bureau estimates 27,554 residents in Geneva County for July 1, 2025, 856 more than in 2020 (+3.2%). That works out to 48 people per square mile of land. No town dominates: Geneva, the largest, has 4,307 residents, 15.6% of the total. Reported testing is thin here: 5 tests over 2008 to 2017, or 0.2 for every 1,000 residents (2025 estimate), where Alabama as a whole comes to 2.4.

From Geneva to Coffee Springs, CDC publishes no figure by town: each reads Geneva County's.

The cities and towns in Geneva County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Geneva4,307+1.4%15.6%
Hartford2,801+5.2%10.2%
Taylorextends beyond Geneva County2,359+4.0%Counted whole
Slocomb2,226+6.2%8.1%
Samson1,891+0.4%6.9%
Malvern1,701+5.7%6.2%
Black241+9.0%0.9%
Coffee Springs214+4.9%0.8%

8 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 Geneva County is counted whole, so it has no share.

Geneva County, Homes

Homes in Geneva County

Of Geneva County's 12,555 homes, 70% are detached houses, against 69% across Alabama; 25% are mobile homes. Half of its homes were built before 1981, close to Alabama's 1985: 20% date from before 1960 and 21% from 2000 or later. Owners live in 78% of the occupied homes (Alabama: 70%), so for most households a test and a fix are their own to order.

Homes in Geneva County, Alabama, 2019 to 2023
HomesGeneva CountyAlabama
Housing units12,5552,316,192
Detached houses70%69%
In buildings of 5 or more1%12%
Mobile homes25%13%
Built before 196020%16%
Built since 200021%27%
Middle year built19811985
Owner-occupied78%70%

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