
Short-term kit![]()
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
EPA puts Beauregard Parish in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2019). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
0.0%
Calcasieu Parish
1 of 5 neighbours have 30+ tests, 2006 to 2015
Nearest county
0.0%
Calcasieu Parish, 29 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
12
Too few for a share
2017
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Beauregard 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
Beauregard 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
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2015 | 0.0% |
| 2017 | 0.0% |
| 2019 | 0.0% |
2019: 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 3 tests were reported to CDC for Beauregard Parish over 2019, 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. Figure above: 2019. Measured data period: 2015 to 2019 (every CDC figure on file).
Beauregard Parish, Compared
CDC's largest figure for Beauregard Parish rests on 12 tests in 2017, 0 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 3.8 pCi/L, with a middle value of 1.3 pCi/L.
Calcasieu Parish, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L. Farther out, East Baton Rouge Parish (134 miles away) at 0.0%, Tangipahoa Parish (175 miles away) at 0.0% and Jefferson Parish (201 miles away) at 1.5% have figures too. 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 Beauregard 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.
Beauregard Parish, Geology
USGS's geologic map puts all of Beauregard 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 | 99.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Neither Beauregard Parish nor Louisiana as a whole has any land USGS rates above low potential. 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
Beauregard Parish, Local resources
What it means
Beauregard Parish, Questions
In 2019, 0.0% of the radon tests reported to CDC for Beauregard Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.6 pCi/L. Calcasieu Parish, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L.
Beauregard Parish borders 5 counties: Calcasieu Parish, LA, Newton County, TX, Allen Parish, LA, Vernon Parish, LA and Jefferson Davis Parish, LA.
Products
Beauregard Parish, Products
No CDC figure names Beauregard Parish; the nearest county with one, Calcasieu Parish (29 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 Beauregard Parish.
Test kits and monitors: 1 of 3
Explore
Beauregard Parish, Bordering counties
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 59 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.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Beauregard Parish, Cities and towns
Beauregard Parish's population has barely moved since 2020: 36,673 residents on July 1, 2025 against 36,605 then, by the Census Bureau's estimates. That works out to 32 people per square mile of land. DeRidder, the largest place on its list (9,503 residents in all), extends beyond Beauregard Parish, so no share of the total is worked out for it. CDC's 12 reported tests for 2017 work out to 0.3 per 1,000 residents (2025 estimate), close to Louisiana's 0.3.
From DeRidder to Merryville, CDC publishes no figure by town: each reads Beauregard Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| DeRidderextends beyond Beauregard Parish | 9,503 | −3.9% | Counted whole |
| Merryville | 950 | −2.3% | 2.6% |
2 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). A place that extends beyond Beauregard Parish is counted whole, so it has no share.
Beauregard Parish, Homes
Of Beauregard Parish's 15,968 homes, 63% are detached houses, against 65% across Louisiana; 31% are mobile homes. Much of Beauregard Parish is recent building: 36% of its homes have gone up since 2000 and the middle year built is 1992, against 1982 for Louisiana. Owners live in 83% of the occupied homes (Louisiana: 67%), so for most households a test and a fix are their own to order.
| Homes | Beauregard Parish | Louisiana |
|---|---|---|
| Housing units | 15,968 | 2,094,002 |
| Detached houses | 63% | 65% |
| In buildings of 5 or more | 2% | 11% |
| Mobile homes | 31% | 13% |
| Built before 1960 | 13% | 19% |
| Built since 2000 | 36% | 27% |
| Middle year built | 1992 | 1982 |
| Owner-occupied | 83% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.