
Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
EPA puts Greene County in Zone 2, its middle radon zone, and only 1 radon test from it is 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
8.5%
Tuscaloosa County
1 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
8.5%
Tuscaloosa County, 39 miles
Share at 4+ pCi/L, 82 tests, 2008 to 2017
Ground above low
100.0%
35.3 pts above Alabama
Share of land USGS rates moderate or high potential
Tests reported
2
Too few for a share
2007 to 2016, laboratory
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Greene County
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
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
Greene County, At a glance
Predicted: EPA radon zone
Greene County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 1 reported test for Greene County over the 2008 to 2017 laboratory totals, a result of 0.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Greene County beside the counties around it is how this page reads it.
Only 1 test was reported to CDC for Greene 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).
Greene County, Compared
CDC's largest figure for Greene County rests on 2 tests over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 50.0 points and no rank or comparison is drawn from it. Results reached as high as 3.3 pCi/L, with a middle value of 1.8 pCi/L.
Tuscaloosa County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 8.5% of its tests at or above 4 pCi/L. Farther out, Jefferson County (78 miles away) at 10.7%, Autauga County (79 miles away) at 17.1% and Shelby County (80 miles away) at 11.3% 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 Greene 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.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Greene County, Geology
USGS's geologic map puts all of Greene County's mapped land in one class: moderate radon potential. All 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).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Inner Coastal Plain | Marly sandy clay, chalk, and glauconitic sands. | Moderate | 10 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Alabama 14.3% of the land is rated high; none of Greene County's is. Of the 5 counties that border it, none has as large a share of moderate-potential ground; Hale County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Greene County, Local resources
What it means
Greene County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Greene County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. Tuscaloosa County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 8.5% of its tests at or above 4 pCi/L.
Greene County borders 5 counties: Sumter County, Hale County, Pickens County, Marengo County and Tuscaloosa County.
Products
Greene County, Products
No CDC figure names Greene County; the nearest county with one, Tuscaloosa County (39 miles away), reported 8.5% 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 Greene County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Greene County, Bordering counties
50.0%at or above 4 pCi/L
Median 3.9 pCi/L · 10 tests
50.0%at or above 4 pCi/L
Median 9.3 pCi/L · 2 tests
8.5%at or above 4 pCi/L
Median 1.4 pCi/L · 82 tests
0.0%at or above 4 pCi/L
Median 2.3 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 2 tests
Greene County, Cities and towns
Greene County has been losing residents: from 7,701 in 2020 to 7,067 on July 1, 2025, a fall of 8.2% by the Census Bureau's estimates. That works out to 11 people per square mile of land. Its largest town, Eutaw, has 2,640 residents, 37.4% of the total. Together its 4 incorporated places hold 49.4% of those residents; the other 50.6% live outside any of them. Reported testing is thin here: 2 tests over 2007 to 2016, or 0.3 for every 1,000 residents (2025 estimate), where Alabama as a whole comes to 2.5.
From Eutaw to Union, CDC publishes no figure by town: each reads Greene County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Eutaw | 2,640 | −9.6% | 37.4% |
| Forkland | 417 | −6.1% | 5.9% |
| Boligee | 271 | −9.4% | 3.8% |
| Union | 166 | −8.3% | 2.3% |
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).
Greene County, Homes
Mobile homes are 38% of Greene County's 4,258 homes and detached houses 53%, against 69% across Alabama. Half of its homes were built before 1982, close to Alabama's 1985: 18% date from before 1960 and 12% from 2000 or later. 70% 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 | Greene County | Alabama |
|---|---|---|
| Housing units | 4,258 | 2,316,192 |
| Detached houses | 53% | 69% |
| In buildings of 5 or more | 7% | 12% |
| Mobile homes | 38% | 13% |
| Built before 1960 | 18% | 16% |
| Built since 2000 | 12% | 27% |
| Middle year built | 1982 | 1985 |
| Owner-occupied | 70% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.