Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Houston County, Alabama
EPA puts Houston County in Zone 3, its lowest radon zone, and only 13 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 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
9.7%
Montgomery County, 91 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
- Houston
- 0.0%
- Alabama
- 64.7%
Share of land USGS rates moderate or high potential
Tests reported
13
Too few for a share
- Houston
- 13
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Houston County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Houston County, At a glance
Houston County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
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 Houston County, 2008 to 2017, laboratory
CDC holds 13 reported tests for Houston County over the 2008 to 2017 laboratory totals, with a median of 1.3 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Houston County beside the counties around it is how this page reads it.
What these figures count
Only 13 tests were reported to CDC for Houston 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).
Houston County, Compared
Houston County radon figures, compared
Calculated by Radon411CDC's largest figure for Houston County rests on 13 tests over the 2008 to 2017 laboratory totals, 3 of them at or above 4 pCi/L, so each test moves its share by 7.7 points and no rank or comparison is drawn from it. Results reached as high as 26.0 pCi/L, with a middle value of 1.3 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 (91 miles away) at 9.7%, Lee County (100 miles away) at 12.3% and Elmore County (111 miles away) at 22.2% 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 Houston 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.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Houston County, Geology
The ground under Houston County
PredictedUSGS's geologic map puts all of Houston County's mapped land in one class: low radon potential. 99.2% 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).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Plain | Marly sandy clay, chalk, and glauconitic sands. | Low | 7 | 99.2% |
| Coastal Plain | Cretaceous and Tertiary marine and coastal sediments including limestone, sandstone, sand, silt, and clay. Coastal plan sands containing glauconite may generate locally elevated radon. | Low | 8 | 0.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Houston County beside the ground around it
Across Alabama 14.3% of the land is rated high; none of Houston County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Henry County the most at 1.2%.
The map rates the ground, not the air in any home.
Local help
Houston County, Local resources
Radon testing and mitigation in Houston County
- Alabama Radon ProgramAlabama Radon Program, run by Alabama Department of Public Health, answers questions about testing, mitigation and the rules in Alabama.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Alabama directoryNo professionals are listed in Alabama yet. The state program can point you to registered testers and mitigators.
What Alabama's program says
- Phone
- (334) 290-6244
What it means
Houston County, Questions
Questions about radon in Houston County
Are radon levels high in Houston County?
Over the 2008 to 2017 laboratory totals, 23.1% of the radon tests reported to CDC for Houston County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.3 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 Houston County?
Houston County borders 6 counties: Early County, GA, Jackson County, FL, Henry County, AL, Dale County, AL, Seminole County, GA and Geneva County, AL.
Products
Houston County, Products
Testing a home in Houston County
No CDC figure names Houston County; the nearest county with one, Montgomery County (91 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 Houston County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
MonitorX-Sense
XR0A-SR battery digital radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Houston County, Bordering counties
Counties bordering Houston County
Calculated by Radon411- Radon levels in Early County, GAEPA zone 3
50.0%at or above 4 pCi/L
Median 2.8 pCi/L · 2 tests
- Radon levels in Jackson County, FLEPA zone 3
6.0%at or above 4 pCi/L
Median 0.7 pCi/L · 67 tests
- Radon levels in Henry County, ALEPA zone 3
0.0%at or above 4 pCi/L
Median 2.1 pCi/L · 1 test
- Radon levels in Dale County, ALEPA zone 3
0.0%at or above 4 pCi/L
Median 2.1 pCi/L · 1 test
- Radon levels in Geneva County, ALEPA zone 3
0.0%at or above 4 pCi/L
Median 1.2 pCi/L · 5 tests
- Radon levels in Seminole County, GAEPA zone 3
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Houston County, Cities and towns
Cities and towns in Houston County
The Census Bureau estimates 110,318 residents in Houston County for July 1, 2025, 3,012 more than in 2020 (+2.8%). That works out to 190 people per square mile of land. Dothan, the largest place on its list (72,060 residents in all), extends beyond Houston County, so no share of the total is worked out for it. Reported testing is thin here: 13 tests over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Alabama as a whole comes to 2.4.
From Dothan to Madrid, CDC publishes no figure by town: each reads Houston County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Dothanextends beyond Houston County | 72,060 | +1.3% | Counted whole |
| Ashford | 2,470 | +9.4% | 2.2% |
| Taylorextends beyond Houston County | 2,359 | +4.0% | Counted whole |
| Kinsey | 2,291 | +3.7% | 2.1% |
| Rehobeth | 2,217 | +22.8% | 2.0% |
| Cowarts | 2,064 | +6.6% | 1.9% |
| Webb | 1,340 | +5.3% | 1.2% |
| Cottonwood | 1,104 | +4.4% | 1.0% |
| Columbia | 720 | +3.4% | 0.7% |
| Avon | 471 | +1.3% | 0.4% |
| Gordon | 309 | +3.3% | 0.3% |
| Madrid | 263 | −1.1% | 0.2% |
12 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 Houston County is counted whole, so it has no share.
Houston County, Homes
Homes in Houston County
Of Houston County's 49,774 homes, 70% are detached houses, against 69% across Alabama; 13% are mobile homes. Half of its homes were built before 1984, close to Alabama's 1985: 15% date from before 1960 and 26% from 2000 or later. 64% 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 | Houston County | Alabama |
|---|---|---|
| Housing units | 49,774 | 2,316,192 |
| Detached houses | 70% | 69% |
| In buildings of 5 or more | 9% | 12% |
| Mobile homes | 13% | 13% |
| Built before 1960 | 15% | 16% |
| Built since 2000 | 26% | 27% |
| Middle year built | 1984 | 1985 |
| Owner-occupied | 64% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.