Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Crockett County, Tennessee
EPA puts Crockett County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
8.7%
Madison County
- Madison
- 8.7%
- Gibson
- 5.3%
2 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
5.3%
Gibson County, 17 miles
- Gibson
- 5.3%
- Tennessee
- 33.3%
Share at 4+ pCi/L, 57 tests, 2008 to 2017
Ground above low
None
69.5 pts below Tennessee
- Crockett
- 0.0%
- Tennessee
- 69.5%
Share of land USGS rates moderate or high potential
Tests reported
19
Too few for a share
- Crockett
- 19
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Crockett 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
Crockett County, At a glance
Crockett 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 Crockett County, 2022
CDC holds 3 reported tests for Crockett County in 2022, with a median of 0.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Crockett County beside the counties around it is how this page reads it.
What these figures count
Only 3 tests were reported to CDC for Crockett County over 2022, 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: 2022. Measured data period: 2005 to 2022 (every CDC figure on file).
Crockett County, Compared
Crockett County radon figures, compared
Calculated by Radon411CDC's largest figure for Crockett County rests on 19 tests over the 2008 to 2017 laboratory totals, 4 of them at or above 4 pCi/L, so each test moves its share by 5.3 points and no rank or comparison is drawn from it. Results reached as high as 12.3 pCi/L, with a middle value of 1.2 pCi/L.
Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Madison County reported the largest share at or above 4 pCi/L, 8.7%, and Gibson County the smallest, 5.3%. Farther out, Obion County (38 miles away) at 11.1%, Chester County (40 miles away) at 0.0% and Tipton County (41 miles away) at 4.5% 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 Crockett County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Crockett County, Geology
The ground under Crockett County
PredictedUSGS's geologic map puts all of Crockett 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 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Crockett County beside the ground around it
Across Tennessee 47.2% of the land is rated high; none of Crockett County's is. None of the 5 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Crockett County, Local resources
Radon testing and mitigation in Crockett 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
Crockett County, Questions
Questions about radon in Crockett County
Are radon levels high in Crockett County?
In 2022, 0.0% of the radon tests reported to CDC for Crockett County, Tennessee were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Madison County reported the largest share at or above 4 pCi/L, 8.7%, and Gibson County the smallest, 5.3%.
Which counties border Crockett County?
Crockett County borders 5 counties: Haywood County, Gibson County, Dyer County, Madison County and Lauderdale County.
Products
Crockett County, Products
Testing a home in Crockett County
No CDC figure names Crockett County; the nearest county with one, Gibson County (17 miles away), reported 5.3% 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. 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 Crockett County.
Test kits and monitors3
See every kit and monitor
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
Monitor
RadonPro Wi-Fi radon monitor with a built-in Geiger counter
- C-NRPP 2024/25: Not included
- Plug-in
- Wi-Fi
- Alarm
- Screen, app
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Crockett County, Bordering counties
Counties bordering Crockett County
Calculated by Radon411- Radon levels in Lauderdale CountyEPA zone 3
11.1%at or above 4 pCi/L
Median 1.3 pCi/L · 9 tests
- Radon levels in Madison CountyEPA zone 1
8.7%at or above 4 pCi/L
Median 1.2 pCi/L · 92 tests
- Radon levels in Gibson CountyEPA zone 3
5.3%at or above 4 pCi/L
Median 1.0 pCi/L · 57 tests
- Radon levels in Haywood CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 23 tests
- Radon levels in Dyer CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.4 pCi/L · 22 tests
Crockett County, Cities and towns
Cities and towns in Crockett County
The Census Bureau estimates 14,006 residents in Crockett County for July 1, 2025, 99 more than in 2020 (+0.7%). That works out to 53 people per square mile of land. No town dominates: Bells, the largest, has 2,473 residents, 17.7% of the total. Together its 5 incorporated places hold 46.5% of those residents; the other 53.5% live outside any of them. Reported testing is thin here: 19 tests over 2008 to 2017, or 1.4 for every 1,000 residents (2025 estimate), where Tennessee as a whole comes to 4.2.
From Bells to Gadsden, CDC publishes no figure by town: each reads Crockett County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Bells | 2,473 | +0.3% | 17.7% |
| Alamo | 2,354 | +0.6% | 16.8% |
| Friendship | 618 | +0.7% | 4.4% |
| Maury City | 592 | +0.2% | 4.2% |
| Gadsden | 473 | +0.2% | 3.4% |
5 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).
Crockett County, Homes
Homes in Crockett County
Crockett County is a place of houses on their own lots: 79% of its 6,114 homes are detached single-family houses, against 68% across Tennessee. Half of its homes were built before 1979, close to Tennessee's 1986: 21% date from before 1960 and 18% from 2000 or later. 69% of occupied homes are lived in by their owner (Tennessee: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Crockett County | Tennessee |
|---|---|---|
| Housing units | 6,114 | 3,095,472 |
| Detached houses | 79% | 68% |
| In buildings of 5 or more | 3% | 14% |
| Mobile homes | 13% | 8% |
| Built before 1960 | 21% | 18% |
| Built since 2000 | 18% | 29% |
| Middle year built | 1979 | 1986 |
| Owner-occupied | 69% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.