
Long-term kit![]()
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Meigs County in Zone 1, its highest radon zone, and only 2 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
34.0%
McMinn County
5 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
26.7%
Rhea County, 9 miles
Share at 4+ pCi/L, 45 tests, 2008 to 2017
Ground above low
100.0%
30.5 pts above Tennessee
Share of land USGS rates moderate or high potential
Tests reported
29
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Meigs County
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
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
Meigs County, At a glance
Predicted: EPA radon zone
EPA puts all of Meigs County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2022 | 0.0% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 2 tests were reported to CDC for Meigs 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).
Meigs County, Compared
CDC's largest figure for Meigs County rests on 29 tests over the 2008 to 2017 laboratory totals, 10 of them at or above 4 pCi/L, so each test moves its share by 3.4 points and no rank or comparison is drawn from it. Results reached as high as 39.9 pCi/L, with a middle value of 2.5 pCi/L.
Of the counties bordering it, 5 have a figure over the 2008 to 2017 laboratory totals: McMinn County reported the largest share at or above 4 pCi/L, 34.0%, and Hamilton County the smallest, 19.3%, with Roane County at 33.7%, Rhea County at 26.7% and Bradley County at 20.9% between. Farther out, Bledsoe County (23 miles away) at 24.3%, Polk County (32 miles away) at 27.9% and Cumberland County (32 miles away) at 8.7% have figures too. Pooled across 95 Tennessee counties, 33.3% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Jefferson County reported the highest share (56.8%) and Chester County the lowest (0.0%). EPA's 1993 map puts Meigs County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 100% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Meigs County, Geology
USGS's geologic map puts all of Meigs County's mapped land in one class: high radon potential. All of it lies in the area the map calls Ridge and Valley, to which USGS gives a radon index of 14, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Ridge and Valley | Paleozoic sandstone and cherty dolostone. | High | 14 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Meigs County has more high-potential ground than Tennessee as a whole: 100% of its land against 47.2%. Of the 5 counties that border it, none has as large a share of high-potential ground; McMinn County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Meigs 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
Meigs County, Questions
In 2023, 0.0% of the radon tests reported to CDC for Meigs County, Tennessee were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.3 pCi/L. Of the counties bordering it, 5 have a figure over the 2008 to 2017 laboratory totals: McMinn County reported the largest share at or above 4 pCi/L, 34.0%, and Hamilton County the smallest, 19.3%, with Roane County at 33.7%, Rhea County at 26.7% and Bradley County at 20.9% between.
Meigs County borders 5 counties: Rhea County, McMinn County, Bradley County, Roane County and Hamilton County.
Products
Meigs County, Products
No CDC figure names Meigs County; the nearest county with one, Rhea County (9 miles away), reported 26.7% 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 1 the year-round level in Meigs 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
Meigs County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Meigs County
Explore
Meigs County, Bordering counties
34.0%at or above 4 pCi/L
Median 2.8 pCi/L · 106 tests
33.7%at or above 4 pCi/L
Median 2.5 pCi/L · 258 tests
26.7%at or above 4 pCi/L
Median 2.4 pCi/L · 45 tests
20.9%at or above 4 pCi/L
Median 1.9 pCi/L · 425 tests
19.3%at or above 4 pCi/L
Median 1.7 pCi/L · 1,148 tests
Meigs County, Cities and towns
Meigs County is growing: the Census Bureau puts it at 14,186 residents on July 1, 2025, up 10.8% from 12,808 in 2020. That works out to 73 people per square mile of land. Decatur, its one incorporated place, has 1,637 residents, 11.5% of the total. Reported testing is thin here: 29 tests over 2008 to 2017, or 2.0 for every 1,000 residents (2025 estimate), where Tennessee as a whole comes to 4.2.
Decatur is the one incorporated place here; CDC publishes no figure by town, so it reads Meigs County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Decatur | 1,637 | +4.2% | 11.5% |
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).
Meigs County, Homes
Of Meigs County's 6,164 homes, 64% are detached houses, against 68% across Tennessee; 34% are mobile homes. Half of its homes were built before 1993, close to Tennessee's 1986: 8% date from before 1960 and 33% from 2000 or later. Owners live in 77% of the occupied homes (Tennessee: 67%), so for most households a test and a fix are their own to order.
| Homes | Meigs County | Tennessee |
|---|---|---|
| Housing units | 6,164 | 3,095,472 |
| Detached houses | 64% | 68% |
| In buildings of 5 or more | 1% | 14% |
| Mobile homes | 34% | 8% |
| Built before 1960 | 8% | 18% |
| Built since 2000 | 33% | 29% |
| Middle year built | 1993 | 1986 |
| Owner-occupied | 77% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.