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 Gallatin County, Kentucky
EPA puts Gallatin 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
42.9%
Boone County
- Boone
- 42.9%
- Grant
- 33.3%
3 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
33.3%
Grant County, 15 miles
- Grant
- 33.3%
- Kentucky
- 43.7%
Share at 4+ pCi/L, 78 tests, 2008 to 2017
Ground above low
100.0%
5.7 pts above Kentucky
- Gallatin
- 100.0%
- Kentucky
- 94.3%
Share of land USGS rates moderate or high potential
Tests reported
24
Too few for a share
- Gallatin
- 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 Gallatin 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
Gallatin County, At a glance
Gallatin County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Gallatin 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 Gallatin County, 2008 to 2017, laboratory
CDC holds 24 reported tests for Gallatin County over the 2008 to 2017 laboratory totals, with a median of 2.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Gallatin County beside the counties around it is how this page reads it.
What these figures count
Only 24 tests were reported to CDC for Gallatin 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).
Gallatin County, Compared
Gallatin County radon figures, compared
Calculated by Radon411CDC's largest figure for Gallatin County rests on 24 tests over the 2008 to 2017 laboratory totals, 6 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 27.1 pCi/L, with a middle value of 2.5 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Boone County reported the largest share at or above 4 pCi/L, 42.9%, and Grant County the smallest, 33.3%, with Owen County at 36.2% between. Farther out, Kenton County (21 miles away) at 26.0%, Henry County (25 miles away) at 36.6% and Pendleton County (27 miles away) at 26.5% 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 Gallatin 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.
Gallatin County, Geology
The ground under Gallatin County
PredictedUSGS's geologic map puts all of Gallatin County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Outer Bluegrass, to which USGS gives a radon index of 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Outer Bluegrass | Ordovician-Devonian limestone and shale. | Moderate | 11 | 99.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Gallatin County beside the ground around it
Across Kentucky 18.2% of the land is rated high; none of Gallatin County's is. Of the 5 counties that border it, 1 has more high-potential ground, Owen County the most at 1.9%.
The map rates the ground, not the air in any home.
Local help
Gallatin County, Local resources
Radon testing and mitigation in Gallatin 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
Gallatin County, Questions
Questions about radon in Gallatin County
Are radon levels high in Gallatin County?
Over the 2008 to 2017 laboratory totals, 25.0% of the radon tests reported to CDC for Gallatin County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.5 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Boone County reported the largest share at or above 4 pCi/L, 42.9%, and Grant County the smallest, 33.3%, with Owen County at 36.2% between.
Which counties border Gallatin County?
Gallatin County borders 5 counties: Switzerland County, IN, Carroll County, KY, Grant County, KY, Owen County, KY and Boone County, KY.
Products
Gallatin County, Products
Testing a home in Gallatin County
No CDC figure names Gallatin County; the nearest county with one, Grant County (15 miles away), reported 33.3% 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 Gallatin 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
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Gallatin County, Bordering counties
Counties bordering Gallatin County
Calculated by Radon411- Radon levels in Boone County, KYEPA zone 2
42.9%at or above 4 pCi/L
Median 3.5 pCi/L · 1,434 tests
- Radon levels in Carroll County, KYEPA zone 2
38.5%at or above 4 pCi/L
Median 3.5 pCi/L · 26 tests
- Radon levels in Owen County, KYEPA zone 2
36.2%at or above 4 pCi/L
Median 2.5 pCi/L · 58 tests
- Radon levels in Switzerland County, INEPA zone 2
33.3%at or above 4 pCi/L
Median 1.5 pCi/L · 15 tests
- Radon levels in Grant County, KYEPA zone 2
33.3%at or above 4 pCi/L
Median 2.5 pCi/L · 78 tests
Gallatin County, Cities and towns
Cities and towns in Gallatin County
The Census Bureau estimates 8,840 residents in Gallatin County for July 1, 2025, 166 more than in 2020 (+1.9%). That works out to 90 people per square mile of land. No town dominates: Warsaw, the largest, has 1,757 residents, 19.9% of the total. Reported testing is thin here: 24 tests over 2008 to 2017, or 2.7 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.
From Warsaw to Sparta, CDC publishes no figure by town: each reads Gallatin County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Warsaw | 1,757 | +0.3% | 19.9% |
| Glencoe | 352 | +1.4% | 4.0% |
| Spartaextends beyond Gallatin County | 234 | +2.6% | Counted whole |
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 Gallatin County is counted whole, so it has no share.
Gallatin County, Homes
Homes in Gallatin County
Of Gallatin County's 3,763 homes, 60% are detached houses, against 68% across Kentucky; 27% are mobile homes. Much of Gallatin County is recent building: 26% of its homes have gone up since 2000 and the middle year built is 1992, against 1982 for Kentucky. 73% 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 | Gallatin County | Kentucky |
|---|---|---|
| Housing units | 3,763 | 2,010,655 |
| Detached houses | 60% | 68% |
| In buildings of 5 or more | 11% | 12% |
| Mobile homes | 27% | 11% |
| Built before 1960 | 16% | 22% |
| Built since 2000 | 26% | 24% |
| Middle year built | 1992 | 1982 |
| Owner-occupied | 73% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.