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 Fayette County, Tennessee
EPA puts Fayette County in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
11.1%
22.2 pts below TN
- Fayette
- 11.1%
- Tennessee
- 33.3%
99 tests, 2008 to 2017
Median result
1.1pCi/L
Below action level
- Fayette
- 1.1 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
99
46th of 80 by tests
- Fayette
- 99
- Davidson
- 5,592
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Tennessee
67 of 80
Lowest quarter
- Fayette
- 11.1%
- Jefferson
- 56.8%
By share, of 80 with 30+ tests
Read a result for Fayette County
Starts at Fayette County's median, 1.1 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.1 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Fayette County's median reported result, 2008 to 2017.
The data
Fayette County, At a glance
Fayette County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Fayette County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2022 | 33.3% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 33.3%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 1 test was reported to CDC for Fayette County over 2023, 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: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Fayette County, Compared
Fayette County radon figures, compared
Calculated by Radon411Fayette County reports fewer high tests than Tennessee overall. 11.1% of its 99 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 22.2 points below the 33.3% pooled from 95 Tennessee counties.
The newest figure, in 2023, counts only 1 test (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 99-test figure.
Ordered from highest share down, it comes 67th of 80 Tennessee counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Fayette County sits 24.6 points below it.
Next door, the shares run from 4.5% in Tipton County to 6.3% in Shelby County, with Shelby County and Tipton County below Fayette County. Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 11.1% share point the same way here.
Half the tests came in under 1.1 pCi/L and half over it; the single highest reached 14.6 pCi/L. The rest split 71.7% under 2 pCi/L and 17.2% from 2 to 4 (Tennessee: 42.4% and 24.3%).
The busiest year on file was 2022, with 9 tests reported; the quietest, 2023, had 1.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Fayette County, Geology
The ground under Fayette County
PredictedUSGS's geologic map puts all of Fayette County's mapped land in one class: low radon potential. All of it lies in the area the map calls Loess-Covered Coastal Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Loess-Covered Coastal Plain | Cretaceous and younger marine and fluvial sand, clay, and marl covered with loess. | Low | 8 | 99.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Fayette County beside the ground around it
Across Tennessee 47.2% of the land is rated high; none of Fayette County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Hardeman County the most at 8.8%.
The map rates the ground, not the air in any home.
Local help
Fayette County, Local resources
Radon testing and mitigation in Fayette County
- Tennessee Radon ProgramTennessee Radon Program, run by Department of Environment & Conservation, offers free or discounted test kits, and answers questions about testing and mitigation in Tennessee.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The Tennessee Radon Program provides free radon test kits and information assistance to residents, while also providing training opportunities to radon professionals across the state.
- Compare kits
- Professionals in Tennessee1 professional is listed in Tennessee.
What Tennessee's program says
- Phone
- 1-800-232-1139
- TDEC.Radon@tn.gov
What it means
Fayette County, Questions
Questions about radon in Fayette County
Are radon levels high in Fayette County?
In 2023, 0.0% of the radon tests reported to CDC for Fayette County, Tennessee were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.3 pCi/L. Of 80 Tennessee counties with 30 or more tests for the same period, 66 reported a higher share; pooled, the state comes to 33.3%.
Which counties border Fayette County?
Fayette County borders 6 counties: Hardeman County, TN, Shelby County, TN, Tipton County, TN, Haywood County, TN, Marshall County, MS and Benton County, MS.
Products
Fayette County, Products
Testing a home in Fayette County
In Fayette County, 11.1% of 99 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 33.3% pooled across Tennessee. 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 Fayette County.
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
Fayette County, Bordering counties
Counties bordering Fayette County
Calculated by Radon411- Radon levels in Hardeman County, TNEPA zone 3
20.0%at or above 4 pCi/L
Median 1.6 pCi/L · 5 tests · 8.9 points above Fayette County
- Radon levels in Shelby County, TNEPA zone 3
6.3%at or above 4 pCi/L
Median 1.0 pCi/L · 384 tests · 4.8 points below Fayette County
- Radon levels in Tipton County, TNEPA zone 3
4.5%at or above 4 pCi/L
Median 1.0 pCi/L · 88 tests · 6.6 points below Fayette County
- Radon levels in Haywood County, TNEPA zone 3
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 23 tests · 11.1 points below Fayette County
- Radon levels in Marshall County, MSEPA zone 3
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
- Radon levels in Benton County, MSEPA zone 3
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Fayette County, Cities and towns
Cities and towns in Fayette County
Fayette County is growing: the Census Bureau puts it at 45,071 residents on July 1, 2025, up 7.7% from 41,868 in 2020. That works out to 64 people per square mile of land. Its largest town, Oakland, has 10,835 residents, 24.0% of the total. Reported testing is thin here: 99 tests over 2008 to 2017, or 2.2 for every 1,000 residents (2025 estimate), where Tennessee as a whole comes to 4.2.
From Oakland to La Grange, CDC publishes no figure by town: each reads Fayette County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Oakland | 10,835 | +19.4% | 24.0% |
| Somerville | 3,622 | +5.6% | 8.0% |
| Piperton | 2,889 | +25.3% | 6.4% |
| Rossville | 1,215 | +14.7% | 2.7% |
| Moscow | 558 | −1.4% | 1.2% |
| Gallaway | 520 | −0.2% | 1.2% |
| Williston | 338 | −3.7% | 0.7% |
| Grand Junctionextends beyond Fayette County | 323 | −3.0% | Counted whole |
| Braden | 252 | −3.1% | 0.6% |
| La Grange | 121 | −3.2% | 0.3% |
10 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 Fayette County is counted whole, so it has no share.
Fayette County, Homes
Homes in Fayette County
Fayette County is a place of houses on their own lots: 84% of its 18,087 homes are detached single-family houses, against 68% across Tennessee. Much of Fayette County is recent building: 45% of its homes have gone up since 2000 and the middle year built is 1997, against 1986 for Tennessee. Owners live in 81% of the occupied homes (Tennessee: 67%), so for most households a test and a fix are their own to order.
| Homes | Fayette County | Tennessee |
|---|---|---|
| Housing units | 18,087 | 3,095,472 |
| Detached houses | 84% | 68% |
| In buildings of 5 or more | 3% | 14% |
| Mobile homes | 10% | 8% |
| Built before 1960 | 7% | 18% |
| Built since 2000 | 45% | 29% |
| Middle year built | 1997 | 1986 |
| Owner-occupied | 81% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.