
Long-term kit![]()
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Moore County in Zone 1, its highest radon zone, and 35.3% of its 51 reported radon tests (2008 to 2017, laboratory totals) were at or above 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
35.3%
2.0 pts above TN
51 tests, 2008 to 2017
Median result
2.9pCi/L
Below action level
Midpoint of the tests, 2008 to 2017
Tests reported
51
64th of 80 by tests
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Tennessee
29 of 80
Middle half
By share, of 80 with 30+ tests
Read a result for Moore County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.9 pCi/L
Between 2 and 4 pCi/L
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Moore County's median reported result, 2008 to 2017.
The data
Moore County, At a glance
Predicted: EPA radon zone
EPA puts all of Moore County in
USGS geologic potential: High across 71% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Of 51 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 18 | 35.3% |
| 2 to 4 pCi/L | 15 | 29.4% |
| 4 pCi/L and above | 18 | 35.3% |
These are the 51 tests reported to CDC for Moore 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).
Moore County, Compared
In Moore County, about 4 in 10 reported tests over the 2008 to 2017 laboratory totals (18 of 51) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 0.4 points lower. Across 95 Tennessee counties pooled together, 33.3% of tests reached that level, so Moore County runs 2.0 points above its state.
Of 4 neighbours with a figure, none reported a larger share at or above 4 pCi/L; the spread is 16.5% (Coffee County) to 25.6% (Franklin County). By share, Moore County is 29th of 80 Tennessee counties with 30 or more tests for the same period.
Half the tests came in under 2.9 pCi/L and half over it; the single highest reached 19.8 pCi/L. Below the action level, 18 tests (35.3%) came in under 2 pCi/L, against 42.4% statewide, and 15 tests (29.4%) fell between 2 and 4, against 24.3% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 35.3% share point the same way here. USGS geology rates 71% of the county's land high radon potential.
CDC's ten-year totals for Moore County went from 54 tests (2005 to 2014) to 51 (2008 to 2017), the share going from 35.2% to 35.3%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Moore County, Geology
USGS's geologic map splits Moore County: 71.0% of its land is high radon potential and 29.0% moderate. The map puts 71.0% of Moore County in the area it calls Nashville Basin and 29.0% in Highland Rim. 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 |
|---|---|---|---|---|
| Nashville Basin | Mississippian Limestone. | High | 14 | 71.0% |
| Highland Rim | Paleozoic sedimentary rocks (limestone, shale, chert, and dolostone). | Moderate | 11 | 29.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Moore County has more high-potential ground than Tennessee as a whole: 71.0% of its land against 47.2%. Of the 4 counties that border it, 1 has more high-potential ground, Bedford County the most at 97.8%.
The map rates the ground, not the air in any home.
Local help
Moore County, Local resources
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.
What it means
Moore County, Questions
Over the 2008 to 2017 laboratory totals, 35.3% of the radon tests reported to CDC for Moore County, Tennessee were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.9 pCi/L. Of 80 Tennessee counties with 30 or more tests for the same period, 28 reported a higher share; pooled, the state comes to 33.3%.
Moore County borders 4 counties: Lincoln County, Franklin County, Bedford County and Coffee County.
Products
Moore County, Products
In Moore County, 35.3% of 51 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 33.3% pooled across Tennessee. In Zone 1 the year-round level in Moore County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors: 1 of 3
Moore County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Moore County
Explore
Moore County, Bordering counties
25.6%at or above 4 pCi/L
Median 2.1 pCi/L · 266 tests · 9.7 points below Moore County
21.0%at or above 4 pCi/L
Median 1.8 pCi/L · 124 tests · 14.3 points below Moore County
20.8%at or above 4 pCi/L
Median 1.9 pCi/L · 149 tests · 14.5 points below Moore County
16.5%at or above 4 pCi/L
Median 1.3 pCi/L · 206 tests · 18.8 points below Moore County
Moore County, Cities and towns
Moore County is growing: the Census Bureau puts it at 6,920 residents on July 1, 2025, up 6.9% from 6,472 in 2020. That works out to 54 people per square mile of land. Lynchburg, Moore County, its one incorporated place, has 6,920 residents, 100.0% of the total. Testing is reported here more often than across the state: CDC's 51 reported tests for 2008 to 2017 come to 7.4 for every 1,000 residents (2025 estimate), against 4.2 for Tennessee.
Lynchburg, Moore County is the one incorporated place here; CDC publishes no figure by town, so it reads Moore County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Lynchburg, Moore County | 6,920 | +6.9% | 100.0% |
One incorporated place, 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).
Moore County, Homes
Moore County is a place of houses on their own lots: 82% of its 2,996 homes are detached single-family houses, against 68% across Tennessee. Half of its homes were built before 1990, close to Tennessee's 1986: 15% date from before 1960 and 30% from 2000 or later. Owners live in 82% of the occupied homes (Tennessee: 67%), so for most households a test and a fix are their own to order.
| Homes | Moore County | Tennessee |
|---|---|---|
| Housing units | 2,996 | 3,095,472 |
| Detached houses | 82% | 68% |
| In buildings of 5 or more | 4% | 14% |
| Mobile homes | 14% | 8% |
| Built before 1960 | 15% | 18% |
| Built since 2000 | 30% | 29% |
| Middle year built | 1990 | 1986 |
| Owner-occupied | 82% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.