Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Fleming County, Kentucky
EPA puts Fleming County in Zone 2, its middle radon zone, and only 22 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
25.0%
Mason County
- Mason
- 25.0%
- Rowan
- 18.9%
2 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
25.0%
Mason County, 17 miles
- Mason
- 25.0%
- Kentucky
- 43.7%
Share at 4+ pCi/L, 32 tests, 2008 to 2017
Ground above low
100.0%
5.7 pts above Kentucky
- Fleming
- 100.0%
- Kentucky
- 94.3%
Share of land USGS rates moderate or high potential
Tests reported
22
Too few for a share
- Fleming
- 22
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Fleming 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
Fleming County, At a glance
Fleming County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Fleming County is a
USGS geologic potential: Moderate across 55% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Fleming County, 2008 to 2017, laboratory
CDC holds 22 reported tests for Fleming County over the 2008 to 2017 laboratory totals, with a median of 2.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Fleming County beside the counties around it is how this page reads it.
What these figures count
Only 22 tests were reported to CDC for Fleming 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).
Fleming County, Compared
Fleming County radon figures, compared
Calculated by Radon411CDC's largest figure for Fleming County rests on 22 tests over the 2008 to 2017 laboratory totals, 8 of them at or above 4 pCi/L, so each test moves its share by 4.5 points and no rank or comparison is drawn from it. Results reached as high as 13.8 pCi/L, with a middle value of 2.9 pCi/L.
Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Mason County reported the largest share at or above 4 pCi/L, 25.0%, and Rowan County the smallest, 18.9%. Farther out, Montgomery County (26 miles away) at 51.4%, Menifee County (30 miles away) at 22.0% and Bourbon County (30 miles away) at 53.5% have figures too. Pooled across 120 Kentucky counties, 43.7% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Meade County reported the highest share (68.4%) and Hopkins County the lowest (9.5%). EPA's 1993 map puts Fleming County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 55% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Fleming County, Geology
The ground under Fleming County
PredictedUSGS's geologic map splits Fleming County: 55.0% of its land is moderate radon potential and 45.0% high. The map puts 45.0% of Fleming County in the area it calls New Albany-Chattanooga Shale and 45.0% in Outer Bluegrass, with one smaller area beside them. USGS gives the first a radon index of 14, in the high band (12 to 17), and the second 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| New Albany-Chattanooga Shale | Devonian/Mississippian Black shale. | High | 14 | 45.0% |
| Outer Bluegrass | Ordovician-Devonian limestone and shale. | Moderate | 11 | 45.0% |
| Mississippian Plateau | Mississippian marine limestones, dolomites, marine sandstones, siltstones, and shales. | Moderate | 11 | 10.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Fleming County beside the ground around it
Fleming County has more high-potential ground than Kentucky as a whole: 45.0% of its land against 18.2%. Of the 6 counties that border it, none has as large a share of high-potential ground; Lewis County comes nearest at 40.8%.
The map rates the ground, not the air in any home.
Local help
Fleming County, Local resources
Radon testing and mitigation in Fleming County
- Kentucky's radon programKentucky Board of Radon SafetyKentucky's radon program answers questions about testing, mitigation and the rules in Kentucky.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
- Professionals in Kentucky8 professionals are listed in Kentucky.
What Kentucky's program says
- Phone
- 502-782-2782
- Radon@ky.gov
What it means
Fleming County, Questions
Questions about radon in Fleming County
Are radon levels high in Fleming County?
Over the 2008 to 2017 laboratory totals, 36.4% of the radon tests reported to CDC for Fleming County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.9 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Mason County reported the largest share at or above 4 pCi/L, 25.0%, and Rowan County the smallest, 18.9%.
Which counties border Fleming County?
Fleming County borders 6 counties: Bath County, Rowan County, Nicholas County, Lewis County, Mason County and Robertson County.
Products
Fleming County, Products
Testing a home in Fleming County
No CDC figure names Fleming County; the nearest county with one, Mason County (17 miles away), reported 25.0% 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. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Fleming 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
MonitorAEGTEST
HOUND-3699 radon monitor with a 2.1-inch touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
First reading: Within 1 hour
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Fleming County, Bordering counties
Counties bordering Fleming County
Calculated by Radon411- Radon levels in Bath CountyEPA zone 2
41.7%at or above 4 pCi/L
Median 3.1 pCi/L · 12 tests
- Radon levels in Lewis CountyEPA zone 2
33.3%at or above 4 pCi/L
Median 2.8 pCi/L · 12 tests
- Radon levels in Mason CountyEPA zone 2
25.0%at or above 4 pCi/L
Median 2.6 pCi/L · 32 tests
- Radon levels in Robertson CountyEPA zone 1
25.0%at or above 4 pCi/L
Median 1.1 pCi/L · 4 tests
- Radon levels in Rowan CountyEPA zone 2
18.9%at or above 4 pCi/L
Median 1.6 pCi/L · 74 tests
- Radon levels in Nicholas CountyEPA zone 2
10.0%at or above 4 pCi/L
Median 1.9 pCi/L · 20 tests
Fleming County, Cities and towns
Cities and towns in Fleming County
The Census Bureau estimates 15,787 residents in Fleming County for July 1, 2025, 698 more than in 2020 (+4.6%). That works out to 45 people per square mile of land. No town dominates: Flemingsburg, the largest, has 3,005 residents, 19.0% of the total. Together its 2 incorporated places hold 20.5% of those residents; the other 79.5% live outside any of them. Reported testing is thin here: 22 tests over 2008 to 2017, or 1.4 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.
From Flemingsburg to Ewing, CDC publishes no figure by town: each reads Fleming County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Flemingsburg | 3,005 | +2.1% | 19.0% |
| Ewing | 231 | +2.7% | 1.5% |
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).
Fleming County, Homes
Homes in Fleming County
Of Fleming County's 6,776 homes, 62% are detached houses, against 68% across Kentucky; 33% are mobile homes. Half of its homes were built before 1985, close to Kentucky's 1982: 23% date from before 1960 and 27% from 2000 or later. Owners live in 76% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.
| Homes | Fleming County | Kentucky |
|---|---|---|
| Housing units | 6,776 | 2,010,655 |
| Detached houses | 62% | 68% |
| In buildings of 5 or more | 2% | 12% |
| Mobile homes | 33% | 11% |
| Built before 1960 | 23% | 22% |
| Built since 2000 | 27% | 24% |
| Middle year built | 1985 | 1982 |
| Owner-occupied | 76% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.