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 Greenup County, Kentucky
EPA puts Greenup County in Zone 2, its middle radon zone, and most reported tests there come back low, though 12.5% of 104 (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
12.5%
31.2 pts below KY
- Greenup
- 12.5%
- Kentucky
- 43.7%
104 tests, 2008 to 2017
Median result
2.0pCi/L
Below action level
- Greenup
- 2.0 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
104
35th of 69 by tests
- Greenup
- 104
- Jefferson
- 6,590
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 Kentucky
67 of 69
Lowest quarter
- Greenup
- 12.5%
- Meade
- 68.4%
By share, of 69 with 30+ tests
Read a result for Greenup County
Starts at Greenup County's median, 2.0 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.0 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Greenup County's median reported result, 2008 to 2017.
The data
Greenup County, At a glance
Greenup County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Greenup 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 Greenup County, 2008 to 2017, laboratory
Under 2 pCi/L: 49%2 to 4 pCi/L: 39%4 pCi/L and above: 12%
Of 104 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 51 | 49.0% |
| 2 to 4 pCi/L | 40 | 38.5% |
| 4 pCi/L and above | 13 | 12.5% |
What these figures count
These are the 104 tests reported to CDC for Greenup 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).
Greenup County, Compared
Greenup County radon figures, compared
Calculated by Radon411Greenup County reports fewer high tests than Kentucky overall. 12.5% of its 104 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 31.2 points below the 43.7% pooled from 120 Kentucky counties.
Ordered from highest share down, it comes 67th of 69 Kentucky counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Greenup County sits 23.2 points below it.
Next door, the shares run from 17.9% in Boyd County to 37.0% in Scioto County, OH. Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 12.5% share point the same way here.
Half the tests came in under 2.0 pCi/L and half over it; the single highest reached 8.1 pCi/L. The rest split 49.0% under 2 pCi/L and 38.5% from 2 to 4 (Kentucky: 33.2% and 23.1%).
CDC's ten-year totals for Greenup County went from 58 tests (2005 to 2014) to 104 (2008 to 2017), the share going from 12.1% to 12.5%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Greenup County, Geology
The ground under Greenup County
PredictedMost of the ground under Greenup County is one class on USGS's geologic map: 99.5% of its land is moderate radon potential, with 0.5% high. The map puts 49.3% of Greenup County in the area it calls Mississippian Plateau and 35.8% in Cumberland Plateau, with one smaller area beside them. USGS gives the first a radon index of 11 and the second 9, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Mississippian Plateau | Mississippian marine limestones, dolomites, marine sandstones, siltstones, and shales. | Moderate | 11 | 49.3% |
| Cumberland Plateau | Pennsylvanian sandstones, siltstones, and shales. | Moderate | 9 | 35.8% |
| Central Allegheny Plateau | Permian and Pennsylvanian shale, siltstone, sandstone, minor limestone. | Moderate | 10 | 14.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Greenup County beside the ground around it
Kentucky as a whole has more high-potential ground than Greenup County: 18.2% of its land, against 0.5% here. Of the 5 counties that border it, 2 have more high-potential ground, Scioto County, OH the most at 79.3%.
The map rates the ground, not the air in any home.
Local help
Greenup County, Local resources
Radon testing and mitigation in Greenup 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
Greenup County, Questions
Questions about radon in Greenup County
Are radon levels high in Greenup County?
Over the 2008 to 2017 laboratory totals, 12.5% of the radon tests reported to CDC for Greenup County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.0 pCi/L. Of 69 Kentucky counties with 30 or more tests for the same period, 66 reported a higher share; pooled, the state comes to 43.7%.
Which counties border Greenup County?
Greenup County borders 5 counties: Scioto County, OH, Carter County, KY, Boyd County, KY, Lawrence County, OH and Lewis County, KY.
Products
Greenup County, Products
Testing a home in Greenup County
In Greenup County, 12.5% of 104 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 43.7% pooled across Kentucky. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Greenup 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
Greenup County, Bordering counties
Counties bordering Greenup County
Calculated by Radon411- Radon levels in Scioto County, OHEPA zone 2
37.0%at or above 4 pCi/L
Median 2.7 pCi/L · 73 tests · 24.5 points above Greenup County
- Radon levels in Lewis County, KYEPA zone 2
33.3%at or above 4 pCi/L
Median 2.8 pCi/L · 12 tests · 20.8 points above Greenup County
- Radon levels in Carter County, KYEPA zone 2
31.7%at or above 4 pCi/L
Median 2.2 pCi/L · 41 tests · 19.2 points above Greenup County
- Radon levels in Lawrence County, OHEPA zone 2
30.3%at or above 4 pCi/L
Median 2.5 pCi/L · 66 tests · 17.8 points above Greenup County
- Radon levels in Boyd County, KYEPA zone 2
17.9%at or above 4 pCi/L
Median 2.1 pCi/L · 168 tests · 5.4 points above Greenup County
Greenup County, Cities and towns
Cities and towns in Greenup County
About 35,213 people live in Greenup County by the Census Bureau's estimate for July 1, 2025, 672 fewer than in 2020 (−1.9%). That works out to 102 people per square mile of land. Its largest town, Flatwoods, has 7,439 residents, 21.1% of the total. Together its 8 incorporated places hold 53.3% of those residents; the other 46.7% live outside any of them. Reported testing is thin here: 104 tests over 2008 to 2017, or 3.0 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.
From Flatwoods to Bellefonte, CDC publishes no figure by town: each reads Greenup County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Flatwoods | 7,439 | −0.7% | 21.1% |
| Russell | 3,628 | −2.9% | 10.3% |
| Raceland | 2,302 | −1.5% | 6.5% |
| Worthington | 1,447 | −3.4% | 4.1% |
| Greenup | 1,069 | −2.6% | 3.0% |
| South Shore | 1,035 | −2.9% | 2.9% |
| Wurtland | 968 | −1.5% | 2.7% |
| Bellefonte | 881 | −3.4% | 2.5% |
8 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).
Greenup County, Homes
Homes in Greenup County
Greenup County is a place of houses on their own lots: 81% of its 16,247 homes are detached single-family houses, against 68% across Kentucky. Half of its homes were built before 1975, close to Kentucky's 1982: 22% date from before 1960 and 14% from 2000 or later. Owners live in 81% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.
| Homes | Greenup County | Kentucky |
|---|---|---|
| Housing units | 16,247 | 2,010,655 |
| Detached houses | 81% | 68% |
| In buildings of 5 or more | 4% | 12% |
| Mobile homes | 13% | 11% |
| Built before 1960 | 22% | 22% |
| Built since 2000 | 14% | 24% |
| Middle year built | 1975 | 1982 |
| Owner-occupied | 81% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.