Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Montgomery County, Alabama
EPA puts Montgomery County in Zone 2, its middle radon zone, and most reported tests there come back low, though 9.7% of 103 (2008 to 2017, laboratory totals) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
9.7%
12.2 pts below AL
- Montgomery
- 9.7%
- Alabama
- 21.9%
103 tests, 2008 to 2017
Median result
0.9pCi/L
Below action level
- Montgomery
- 0.9 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
103
14th of 27 by tests
- Montgomery
- 103
- Madison
- 5,178
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Alabama
24 of 27
Lowest quarter
- Montgomery
- 9.7%
- Colbert
- 36.2%
By share, of 27 with 30+ tests
Read a result for Montgomery County
Starts at Montgomery County's median, 0.9 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.9 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Montgomery County's median reported result, 2008 to 2017.
The data
Montgomery County, At a glance
Montgomery County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Montgomery 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
Radon tests reported for Montgomery County, 2008 to 2017, laboratory
Under 2 pCi/L: 78%2 to 4 pCi/L: 12%4 pCi/L and above: 10%
Of 103 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 80 | 77.7% |
| 2 to 4 pCi/L | 13 | 12.6% |
| 4 pCi/L and above | 10 | 9.7% |
What these figures count
These are the 103 tests reported to CDC for Montgomery County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Montgomery County, Compared
Montgomery County radon figures, compared
Calculated by Radon411Montgomery County reports fewer high tests than Alabama overall. 9.7% of its 103 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 12.2 points below the 21.9% pooled from 65 Alabama counties.
Ordered from highest share down, it comes 24th of 27 Alabama counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Montgomery County sits 26.0 points below it.
Next door, the shares run from 17.1% in Autauga County to 22.2% in Elmore County. The reported tests do not follow EPA's Zone 2 label for Montgomery County (predicted average between 2 and 4 pCi/L): 9.7% of them reached 4 pCi/L, fewer than that label suggests.
Half the tests came in under 0.9 pCi/L and half over it; the single highest reached 8.7 pCi/L. The rest split 77.7% under 2 pCi/L and 12.6% from 2 to 4 (Alabama: 54.3% and 23.8%).
CDC's ten-year totals for Montgomery County went from 103 tests (2005 to 2014) to 103 (2008 to 2017), the share going from 7.8% to 9.7%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Montgomery County, Geology
The ground under Montgomery County
PredictedUSGS's geologic map puts all of Montgomery 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.
Montgomery County beside the ground around it
Across Alabama 14.3% of the land is rated high; none of Montgomery County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Bullock County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Montgomery County, Local resources
Radon testing and mitigation in Montgomery 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
Montgomery County, Questions
Questions about radon in Montgomery County
Are radon levels high in Montgomery County?
Over the 2008 to 2017 laboratory totals, 9.7% of the radon tests reported to CDC for Montgomery County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of 27 Alabama counties with 30 or more tests for the same period, 23 reported a higher share; pooled, the state comes to 21.9%.
Which counties border Montgomery County?
Montgomery County borders 7 counties: Pike County, Lowndes County, Elmore County, Crenshaw County, Bullock County, Macon County and Autauga County.
Products
Montgomery County, Products
Testing a home in Montgomery County
In Montgomery County, 9.7% of 103 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 21.9% pooled across Alabama. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Montgomery County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorAranet
Radon One battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Montgomery County, Bordering counties
Counties bordering Montgomery County
Calculated by Radon411- Radon levels in Pike CountyEPA zone 3
44.4%at or above 4 pCi/L
Median 1.7 pCi/L · 9 tests · 34.7 points above Montgomery County
- Radon levels in Elmore CountyEPA zone 2
22.2%at or above 4 pCi/L
Median 1.2 pCi/L · 36 tests · 12.5 points above Montgomery County
- Radon levels in Macon CountyEPA zone 2
22.2%at or above 4 pCi/L
Median 0.1 pCi/L · 9 tests · 12.5 points above Montgomery County
- Radon levels in Autauga CountyEPA zone 2
17.1%at or above 4 pCi/L
Median 0.9 pCi/L · 35 tests · 7.4 points above Montgomery County
- Radon levels in Lowndes CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 2 tests · 9.7 points below Montgomery County
- Radon levels in Crenshaw CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 1 test · 9.7 points below Montgomery County
- Radon levels in Bullock CountyEPA zone 2
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Montgomery County, Cities and towns
Cities and towns in Montgomery County
About 225,891 people live in Montgomery County by the Census Bureau's estimate for July 1, 2025, 2,454 fewer than in 2020 (−1.1%). That works out to 288 people per square mile of land. Montgomery alone is home to 195,300 of them, 86.5% of the total. Together its 2 incorporated places hold 91.7% of those residents; the other 8.3% live outside any of them. Reported testing is thin here: 103 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 Montgomery to Pike Road, CDC publishes no figure by town: each reads Montgomery County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Montgomery | 195,300 | −2.4% | 86.5% |
| Pike Road | 11,899 | +24.8% | 5.3% |
2 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).
Montgomery County, Homes
Homes in Montgomery County
Of Montgomery County's 105,799 homes, 70% are detached houses, against 69% across Alabama; 18% are in buildings of five or more homes. Half of its homes were built before 1979, close to Alabama's 1985: 20% date from before 1960 and 20% from 2000 or later. 58% 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 | Montgomery County | Alabama |
|---|---|---|
| Housing units | 105,799 | 2,316,192 |
| Detached houses | 70% | 69% |
| In buildings of 5 or more | 18% | 12% |
| Mobile homes | 4% | 13% |
| Built before 1960 | 20% | 16% |
| Built since 2000 | 20% | 27% |
| Middle year built | 1979 | 1985 |
| Owner-occupied | 58% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.