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 Perry County, Kentucky
EPA puts Perry County in Zone 2, its middle radon zone, and only 24 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
19.1%
Breathitt County
- Breathitt
- 19.1%
1 of 7 neighbours have 30+ tests, 2008 to 2017
Nearest county
19.1%
Breathitt County, 20 miles
- Breathitt
- 19.1%
- Kentucky
- 43.7%
Share at 4+ pCi/L, 47 tests, 2008 to 2017
Ground above low
100.0%
5.7 pts above Kentucky
- Perry
- 100.0%
- Kentucky
- 94.3%
Share of land USGS rates moderate or high potential
Tests reported
24
Too few for a share
- Perry
- 24
- 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 Perry 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
Perry County, At a glance
Perry County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Perry 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 Perry County, 2008 to 2017, laboratory
CDC holds 24 reported tests for Perry County over the 2008 to 2017 laboratory totals, with a median of 1.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Perry County beside the counties around it is how this page reads it.
What these figures count
Only 24 tests were reported to CDC for Perry 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).
Perry County, Compared
Perry County radon figures, compared
Calculated by Radon411CDC's largest figure for Perry County rests on 24 tests over the 2008 to 2017 laboratory totals, 5 of them at or above 4 pCi/L, so each test moves its share by 4.2 points and no rank or comparison is drawn from it. Results reached as high as 17.6 pCi/L, with a middle value of 1.4 pCi/L.
Breathitt County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 19.1% of its tests at or above 4 pCi/L. Farther out, Pike County (48 miles away) at 17.1%, Laurel County (50 miles away) at 22.0% and Estill County (51 miles away) at 44.1% 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 Perry 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.
Perry County, Geology
The ground under Perry County
PredictedUSGS's geologic map puts all of Perry County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Cumberland Plateau, to which USGS gives a radon index of 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Cumberland Plateau | Pennsylvanian sandstones, siltstones, and shales. | Moderate | 9 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Perry County beside the ground around it
Across Kentucky 18.2% of the land is rated high; none of Perry County's is. Of the 7 counties that border it, 1 has more high-potential ground, Harlan County the most at 6.9%.
The map rates the ground, not the air in any home.
Local help
Perry County, Local resources
Radon testing and mitigation in Perry 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
Perry County, Questions
Questions about radon in Perry County
Are radon levels high in Perry County?
Over the 2008 to 2017 laboratory totals, 20.8% of the radon tests reported to CDC for Perry County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.4 pCi/L. Breathitt County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 19.1% of its tests at or above 4 pCi/L.
Which counties border Perry County?
Perry County borders 7 counties: Leslie County, Knott County, Letcher County, Breathitt County, Harlan County, Owsley County and Clay County.
Products
Perry County, Products
Testing a home in Perry County
No CDC figure names Perry County; the nearest county with one, Breathitt County (20 miles away), reported 19.1% 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 Perry 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
MonitorX-Sense
XR0A-iR Wi-Fi battery radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Wi-Fi
- Screen, app
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
Perry County, Bordering counties
Counties bordering Perry County
Calculated by Radon411- Radon levels in Owsley CountyEPA zone 2
62.5%at or above 4 pCi/L
Median 18.3 pCi/L · 8 tests
- Radon levels in Letcher CountyEPA zone 2
31.8%at or above 4 pCi/L
Median 1.8 pCi/L · 22 tests
- Radon levels in Harlan CountyEPA zone 2
25.0%at or above 4 pCi/L
Median 0.1 pCi/L · 4 tests
- Radon levels in Knott CountyEPA zone 2
23.1%at or above 4 pCi/L
Median 1.7 pCi/L · 13 tests
- Radon levels in Clay CountyEPA zone 2
20.0%at or above 4 pCi/L
Median 2.1 pCi/L · 10 tests
- Radon levels in Breathitt CountyEPA zone 2
19.1%at or above 4 pCi/L
Median 1.7 pCi/L · 47 tests
- Radon levels in Leslie CountyEPA zone 2
10.0%at or above 4 pCi/L
Median 0.1 pCi/L · 10 tests
Perry County, Cities and towns
Cities and towns in Perry County
Perry County has been losing residents: from 28,370 in 2020 to 26,555 on July 1, 2025, a fall of 6.4% by the Census Bureau's estimates. That works out to 78 people per square mile of land. No town dominates: Hazard, the largest, has 4,794 residents, 18.1% of the total. Reported testing is thin here: 24 tests over 2008 to 2017, or 0.9 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.
From Hazard to Buckhorn, CDC publishes no figure by town: each reads Perry County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Hazard | 4,794 | −8.6% | 18.1% |
| Viccoextends beyond Perry County | 302 | −6.5% | Counted whole |
| Buckhorn | 81 | −4.7% | 0.3% |
3 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 Perry County is counted whole, so it has no share.
Perry County, Homes
Homes in Perry County
Of Perry County's 13,256 homes, 58% are detached houses, against 68% across Kentucky; 32% are mobile homes. Half of its homes were built before 1986, close to Kentucky's 1982: 17% date from before 1960 and 25% from 2000 or later. 72% of occupied homes are lived in by their owner (Kentucky: 68%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Perry County | Kentucky |
|---|---|---|
| Housing units | 13,256 | 2,010,655 |
| Detached houses | 58% | 68% |
| In buildings of 5 or more | 5% | 12% |
| Mobile homes | 32% | 11% |
| Built before 1960 | 17% | 22% |
| Built since 2000 | 25% | 24% |
| Middle year built | 1986 | 1982 |
| Owner-occupied | 72% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.