Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in West Carroll Parish, Louisiana
EPA puts West Carroll Parish in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2014). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
0.0%
East Baton Rouge Parish, 156 miles
- East Baton Rouge Parish
- 0.0%
- Louisiana
- 2.8%
Share at 4+ pCi/L, 48 tests, 2006 to 2015
Ground above low
None
Level with Louisiana
- West Carroll Parish
- 0.0%
- Louisiana
- 0.0%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- West Carroll Parish
- 3
- Needed
- 30
2014
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 West Carroll Parish
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
West Carroll Parish, At a glance
West Carroll Parish 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 West Carroll Parish, 2014
CDC holds 3 reported tests for West Carroll Parish in 2014, with a median of 0.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). West Carroll Parish beside the counties around it is how this page reads it.
What these figures count
Only 3 tests were reported to CDC for West Carroll Parish over 2014, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the parish nor this house.
Measured: CDC tracking data. Measured data period: 2014.
West Carroll Parish, Compared
West Carroll Parish radon figures, compared
Calculated by Radon411CDC's largest figure for West Carroll Parish rests on 3 tests in 2014, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 0.9 pCi/L, with a middle value of 0.9 pCi/L.
The nearest counties with a figure are East Baton Rouge Parish (156 miles away) at 0.0%, Tangipahoa Parish (161 miles away) at 0.0% and Calcasieu Parish (209 miles away) at 0.0%. Pooled across 37 Louisiana counties, 2.8% of reported tests reached that level; across every county in the country with a figure, 36.3%.
Statewide for the same period, Jefferson Parish reported the highest share (1.5%) and Tangipahoa Parish the lowest (0.0%). EPA's 1993 map puts West Carroll Parish 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.
West Carroll Parish, Geology
The ground under West Carroll Parish
PredictedUSGS's geologic map puts all of West Carroll Parish's mapped land in one class: low radon potential. All of it lies in the area the map calls Floodplain, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Floodplain | Alluvium, marsh, silt, and clay. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
West Carroll Parish beside the ground around it
Neither West Carroll Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 4 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
West Carroll Parish, Local resources
Radon testing and mitigation in West Carroll Parish
- Louisiana's radon programLouisiana Department of Environmental QualityLouisiana's radon program answers questions about testing, mitigation and the rules in Louisiana.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
- See the Louisiana directoryNo professionals are listed in Louisiana yet. The state program can point you to registered testers and mitigators.
What it means
West Carroll Parish, Questions
Questions about radon in West Carroll Parish
Are radon levels high in West Carroll Parish?
In 2014, 0.0% of the radon tests reported to CDC for West Carroll Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of the 4 nearest counties with a figure, within 221 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 1.5%.
Which counties border West Carroll Parish?
West Carroll Parish borders 4 counties: East Carroll Parish, LA, Morehouse Parish, LA, Richland Parish, LA and Chicot County, AR.
Products
West Carroll Parish, Products
Testing a home in West Carroll Parish
No CDC figure names West Carroll Parish; the nearest county with one, East Baton Rouge Parish (156 miles away), reported 0.0% of its tests at or above 4 pCi/L over the 2006 to 2015 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 West Carroll Parish.
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
MonitorPYZYCKYH
RD17 plug-in radon detector with a rechargeable battery and 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
West Carroll Parish, Bordering counties
Counties bordering West Carroll Parish
Calculated by Radon411- Radon levels in Richland Parish, LAEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 1 test
- Radon levels in East Carroll Parish, LAEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Morehouse Parish, LAEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Chicot County, AREPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
West Carroll Parish, Cities and towns
Cities and towns in West Carroll Parish
West Carroll Parish has been losing residents: from 9,694 in 2020 to 9,156 on July 1, 2025, a fall of 5.5% by the Census Bureau's estimates. That works out to 25 people per square mile of land. No town dominates: Oak Grove, the largest, has 1,350 residents, 14.7% of the total. Together its 5 incorporated places hold 26.7% of those residents; the other 73.3% live outside any of them. Testing is reported here more often than across the state: CDC's 3 reported tests for 2014 come to 0.3 for every 1,000 residents (2025 estimate), against 0.1 for Louisiana.
From Oak Grove to Pioneer, CDC publishes no figure by town: each reads West Carroll Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Oak Grove | 1,350 | −6.4% | 14.7% |
| Epps | 334 | −6.7% | 3.6% |
| Kilbourne | 327 | −6.8% | 3.6% |
| Forest | 285 | −4.4% | 3.1% |
| Pioneer | 149 | +0.7% | 1.6% |
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).
West Carroll Parish, Homes
Homes in West Carroll Parish
Of West Carroll Parish's 4,691 homes, 65% are detached houses, against 65% across Louisiana; 33% are mobile homes. Half of its homes were built before 1978, close to Louisiana's 1982: 16% date from before 1960 and 17% from 2000 or later. 74% of occupied homes are lived in by their owner (Louisiana: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | West Carroll Parish | Louisiana |
|---|---|---|
| Housing units | 4,691 | 2,094,002 |
| Detached houses | 65% | 65% |
| In buildings of 5 or more | 1% | 11% |
| Mobile homes | 33% | 13% |
| Built before 1960 | 16% | 19% |
| Built since 2000 | 17% | 27% |
| Middle year built | 1978 | 1982 |
| Owner-occupied | 74% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.