Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Crittenden County, Kentucky
EPA puts Crittenden County in Zone 2, its middle radon zone, and only 8 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
Nearest county
9.5%
Hopkins County, 31 miles
- Hopkins
- 9.5%
- Kentucky
- 43.7%
Share at 4+ pCi/L, 42 tests, 2008 to 2017
Ground above low
100.0%
5.7 pts above Kentucky
- Crittenden
- 100.0%
- Kentucky
- 94.3%
Share of land USGS rates moderate or high potential
Tests reported
12
Too few for a share
- Crittenden
- 12
- Needed
- 30
2006 to 2015, 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 Crittenden 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
Crittenden County, At a glance
Crittenden County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Crittenden 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 Crittenden County, 2008 to 2017, laboratory
CDC holds 8 reported tests for Crittenden County over the 2008 to 2017 laboratory totals, with a median of 1.6 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Crittenden County beside the counties around it is how this page reads it.
What these figures count
Only 8 tests were reported to CDC for Crittenden 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).
Crittenden County, Compared
Crittenden County radon figures, compared
Calculated by Radon411CDC's largest figure for Crittenden County rests on 12 tests over the 2006 to 2015 laboratory totals, 3 of them at or above 4 pCi/L, so each test moves its share by 8.3 points and no rank or comparison is drawn from it. Results reached as high as 12.3 pCi/L, with a middle value of 2.2 pCi/L.
The nearest counties with a figure are Hopkins County (31 miles away) at 9.5%, Marshall County (35 miles away) at 10.6% and Trigg County (40 miles away) at 22.2%. 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 Crittenden 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.
Crittenden County, Geology
The ground under Crittenden County
PredictedUSGS's geologic map puts all of Crittenden County's mapped land in one class: moderate radon potential. The map puts 83.5% of Crittenden County in the area it calls Mississippian Plateau and 16.4% in Western Coalfield. USGS gives the first a radon index of 11 and the second 9, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Mississippian Plateau | Mississippian marine limestones, dolomites, marine sandstones, siltstones, and shales. | Moderate | 11 | 83.5% |
| Western Coalfield | Limestones, shale, siltstone, and coal beds. | Moderate | 9 | 16.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Crittenden County beside the ground around it
Across Kentucky 18.2% of the land is rated high; none of Crittenden County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Hardin County, IL comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Crittenden County, Local resources
Radon testing and mitigation in Crittenden 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
Crittenden County, Questions
Questions about radon in Crittenden County
Are radon levels high in Crittenden County?
Over the 2008 to 2017 laboratory totals, 25.0% of the radon tests reported to CDC for Crittenden County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.6 pCi/L. Of the 8 nearest counties with a figure, within 75 miles, the share of tests at or above 4 pCi/L runs from 9.5% to 36.1%.
Which counties border Crittenden County?
Crittenden County borders 6 counties: Hardin County, IL, Caldwell County, KY, Livingston County, KY, Lyon County, KY, Union County, KY and Webster County, KY.
Products
Crittenden County, Products
Testing a home in Crittenden County
No CDC figure names Crittenden County; the nearest county with one, Hopkins County (31 miles away), reported 9.5% 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 Crittenden 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
MonitorINKBIRD
INK-RD3 battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Crittenden County, Bordering counties
Counties bordering Crittenden County
Calculated by Radon411- Radon levels in Caldwell County, KYEPA zone 2
40.0%at or above 4 pCi/L
Median 3.7 pCi/L · 20 tests
- Radon levels in Lyon County, KYEPA zone 2
35.7%at or above 4 pCi/L
Median 2.5 pCi/L · 14 tests
- Radon levels in Union County, KYEPA zone 2
25.0%at or above 4 pCi/L
Median 1.6 pCi/L · 8 tests
- Radon levels in Hardin County, ILEPA zone 2
22.2%at or above 4 pCi/L
Median 1.4 pCi/L · 9 tests
- Radon levels in Webster County, KYEPA zone 2
12.5%at or above 4 pCi/L
Median 2.0 pCi/L · 8 tests
- Radon levels in Livingston County, KYEPA zone 2
0.0%at or above 4 pCi/L
Median 1.3 pCi/L · 11 tests
Crittenden County, Cities and towns
Cities and towns in Crittenden County
About 8,807 people live in Crittenden County by the Census Bureau's estimate for July 1, 2025, 195 fewer than in 2020 (−2.2%). That works out to 24 people per square mile of land. Marion, its one incorporated place, has 2,879 residents, 32.7% of the total. Reported testing is thin here: 12 tests over 2006 to 2015, or 1.4 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 5.0.
Marion is the one incorporated place here; CDC publishes no figure by town, so it reads Crittenden County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Marion | 2,879 | −1.3% | 32.7% |
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).
Crittenden County, Homes
Homes in Crittenden County
Crittenden County is a place of houses on their own lots: 81% of its 4,351 homes are detached single-family houses, against 68% across Kentucky. Half of its homes were built before 1975, close to Kentucky's 1982: 26% date from before 1960 and 15% from 2000 or later. Owners live in 78% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.
| Homes | Crittenden County | Kentucky |
|---|---|---|
| Housing units | 4,351 | 2,010,655 |
| Detached houses | 81% | 68% |
| In buildings of 5 or more | 1% | 12% |
| Mobile homes | 15% | 11% |
| Built before 1960 | 26% | 22% |
| Built since 2000 | 15% | 24% |
| Middle year built | 1975 | 1982 |
| Owner-occupied | 78% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.