
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
EPA puts Allen Parish in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
0.0%
Calcasieu Parish, 43 miles
Share at 4+ pCi/L, 59 tests, 2006 to 2015
Ground above low
None
Level with Louisiana
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Allen Parish
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
Allen Parish, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Allen Parish. Calcasieu Parish, 43 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Allen Parish, Compared
CDC's county radon counts over the 2006 to 2015 laboratory totals cover 37 Louisiana counties, and Allen Parish is not among them: no year's figure and no ten-year laboratory total names it. Pooled across 37 Louisiana counties, 2.8% of reported tests reached that level; across every county in the country with a figure, 36.3%.
The nearest counties with a figure are Calcasieu Parish (43 miles away) at 0.0%, East Baton Rouge Parish (104 miles away) at 0.0% and Tangipahoa Parish (144 miles away) at 0.0%. 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 Allen 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.
Allen Parish, Geology
USGS's geologic map puts all of Allen Parish's mapped land in one class: low radon potential. All of it lies in the area the map calls Terraces and Prairies, 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 |
|---|---|---|---|---|
| Terraces and Prairies | Clay, sandy clay, silt, sand, and some gravel. | 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.
Neither Allen Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 5 parishes that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Allen Parish, Local resources
What it means
Allen Parish, Questions
No CDC testing statistics are published here for Allen Parish, Louisiana yet. Of the 4 nearest counties with a figure, within 172 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 1.5%.
Allen Parish borders 5 parishes: Evangeline Parish, Jefferson Davis Parish, Beauregard Parish, Rapides Parish and Vernon Parish.
Products
Allen Parish, Products
No CDC figure names Allen Parish; the nearest county with one, Calcasieu Parish (43 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 Allen Parish.
Test kits and monitors: 1 of 3
Explore
Allen Parish, Bordering parishes
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 4 tests
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Allen Parish, Cities and towns
Allen Parish's population has barely moved since 2020: 22,672 residents on July 1, 2025 against 22,671 then, by the Census Bureau's estimates. That works out to 30 people per square mile of land. Its largest town, Oakdale, has 6,526 residents, 28.8% of the total. Together its 5 incorporated places hold 46.5% of those residents; the other 53.5% live outside any of them. CDC publishes no radon test count for Allen Parish; across Louisiana its counts for 2006 to 2015 come to 0.1 tests for every 1,000 residents (2025 estimate).
From Oakdale to Reeves, CDC publishes no figure by town: each reads Allen Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Oakdale | 6,526 | −2.1% | 28.8% |
| Kinder | 2,091 | −3.3% | 9.2% |
| Oberlin | 1,286 | −2.9% | 5.7% |
| Elizabeth | 410 | −0.5% | 1.8% |
| Reeves | 227 | +3.7% | 1.0% |
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).
Allen Parish, Homes
Of Allen Parish's 9,543 homes, 70% are detached houses, against 65% across Louisiana; 19% are mobile homes. Half of its homes were built before 1979, close to Louisiana's 1982: 23% date from before 1960 and 24% from 2000 or later. Owners live in 77% of the occupied homes (Louisiana: 67%), so for most households a test and a fix are their own to order.
| Homes | Allen Parish | Louisiana |
|---|---|---|
| Housing units | 9,543 | 2,094,002 |
| Detached houses | 70% | 65% |
| In buildings of 5 or more | 3% | 11% |
| Mobile homes | 19% | 13% |
| Built before 1960 | 23% | 19% |
| Built since 2000 | 24% | 27% |
| Middle year built | 1979 | 1982 |
| 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.