
Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
EPA puts Monroe County in Zone 3, its lowest radon zone, and only 2 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
0.0%
Baldwin County
1 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
0.0%
Baldwin County, 62 miles
Share at 4+ pCi/L, 31 tests, 2008 to 2017
Ground above low
None
64.7 pts below Alabama
Share of land USGS rates moderate or high potential
Tests reported
2
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Monroe 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
Monroe County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 2 reported tests for Monroe County over the 2008 to 2017 laboratory totals, with a median of 0.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Monroe County beside the counties around it is how this page reads it.
Only 2 tests were reported to CDC for Monroe 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).
Monroe County, Compared
CDC's largest figure for Monroe County rests on 2 tests over the 2008 to 2017 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 0.2 pCi/L, with a middle value of 0.2 pCi/L.
Baldwin County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L. Farther out, Mobile County (73 miles away) at 3.8%, Autauga County (79 miles away) at 17.1% and Montgomery County (81 miles away) at 9.7% 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 Monroe 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.
Monroe County, Geology
USGS's geologic map puts all of Monroe County's mapped land in one class: low radon potential. 99.0% 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 | 99.0% |
| Jackson Prairies | Sand, marl, clay, and limestone. | Low | 8 | 1.0% |
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 Monroe County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Wilcox County the most at 16.3%.
The map rates the ground, not the air in any home.
Local help
Monroe County, Local resources
What it means
Monroe County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Monroe County, Alabama were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. Baldwin County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L.
Monroe County borders 6 counties: Clarke County, Conecuh County, Escambia County, Wilcox County, Butler County and Baldwin County.
Products
Monroe County, Products
No CDC figure names Monroe County; the nearest county with one, Baldwin County (62 miles away), reported 0.0% 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 Monroe County.
Test kits and monitors: 1 of 3
Explore
Monroe County, Bordering counties
0.0%at or above 4 pCi/L
Median 0.4 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 1.2 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 31 tests
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Monroe County, Cities and towns
About 18,965 people live in Monroe County by the Census Bureau's estimate for July 1, 2025, 742 fewer than in 2020 (−3.8%). That works out to 18 people per square mile of land. Its largest town, Monroeville, has 5,758 residents, 30.4% of the total. Together its 5 incorporated places hold 41.1% of those residents; the other 58.9% live outside any of them. Reported testing is thin here: 2 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 Monroeville to Beatrice, CDC publishes no figure by town: each reads Monroe County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Monroeville | 5,758 | −3.4% | 30.4% |
| Frisco City | 1,089 | −6.4% | 5.7% |
| Excel | 539 | −5.3% | 2.8% |
| Vredenburgh | 212 | −4.5% | 1.1% |
| Beatrice | 194 | −4.9% | 1.0% |
5 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).
Monroe County, Homes
Of Monroe County's 10,193 homes, 67% are detached houses, against 69% across Alabama; 22% are mobile homes. Half of its homes were built before 1983, close to Alabama's 1985: 13% date from before 1960 and 17% 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 | Monroe County | Alabama |
|---|---|---|
| Housing units | 10,193 | 2,316,192 |
| Detached houses | 67% | 69% |
| In buildings of 5 or more | 4% | 12% |
| Mobile homes | 22% | 13% |
| Built before 1960 | 13% | 16% |
| Built since 2000 | 17% | 27% |
| Middle year built | 1983 | 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.