Skip to content

Locations and reports

Radon Levels in Beauregard Parish, Louisiana

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

    Calcasieu Parish
    0.0%

    1 of 5 neighbours have 30+ tests, 2006 to 2015

  • Nearest county

    0.0%

    Calcasieu Parish, 29 miles

    Calcasieu Parish
    0.0%
    Louisiana
    2.8%

    Share at 4+ pCi/L, 59 tests, 2006 to 2015

  • Ground above low

    None

    Level with Louisiana

    Beauregard Parish
    0.0%
    Louisiana
    0.0%

    Share of land USGS rates moderate or high potential

  • Tests reported

    12

    Too few for a share

    Beauregard Parish
    12
    Needed
    30

    2017

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Beauregard Parish

Starts at EPA's action level

4.0pCi/L

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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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

Beauregard Parish, At a glance

Beauregard Parish at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Beauregard Parish as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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 Beauregard Parish, 2019

Share of reported tests at or above 4 pCi/L, by year, Beauregard Parish
Share of reported tests at or above 4 pCi/L, by year, Beauregard Parish
YearShare of reported tests at or above 4 pCi/L
20150.0%
20170.0%
20190.0%

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.

What these figures count

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).

How to read these figures

Beauregard Parish, Compared

Beauregard Parish radon figures, compared

Calculated by Radon411

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.

Louisiana, the United States and the counties around Beauregard Parish, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
Louisiana, pooled37 counties, pooled4342.8%Not pooled
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Jefferson Parishhighest in the state671.5%0.2 pCi/L
Tangipahoa Parishlowest in the state430.0%0.1 pCi/L
Calcasieu Parish, LAborders it590.0%0.2 pCi/L
The nearest Louisiana counties to Beauregard Parish with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Calcasieu Parish29 mi590.0%0.2 pCi/L
East Baton Rouge Parish134 mi480.0%0.6 pCi/L
Tangipahoa Parish175 mi430.0%0.1 pCi/L
Jefferson Parish201 mi671.5%0.2 pCi/L
Beauregard Parish radon tests by year, against Louisiana's pooled share
YearTestsAt or above 4 pCi/LMedianHighestLouisiana, pooledChange from the row before
201930.0%1.6 pCi/L1.6 pCi/L2.0%Level
2017120.0%1.3 pCi/L3.8 pCi/L2.6%Level
201560.0%0.4 pCi/L0.4 pCi/L7.2%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Beauregard Parish, Geology

The ground under Beauregard Parish

Predicted

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).

USGS's geologic areas under Beauregard Parish
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Terraces and PrairiesClay, sandy clay, silt, sand, and some gravel.Low899.9%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Beauregard Parish beside the ground around it

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.

Share of land by USGS radon potential: Beauregard Parish, the 5 counties bordering it and Louisiana
AreaEPA zoneLow potentialModerate potentialHigh potential
Beauregard ParishZone 3100%NoneNone
Calcasieu ParishZone 3100%NoneNone
Newton County, TXZone 3100%NoneNone
Allen ParishZone 3100%NoneNone
Vernon ParishZone 3100%NoneNone
Jefferson Davis ParishZone 3100%NoneNone
Louisiana64 parishes, pooled by land areaVaries98.4%NoneNone

The map rates the ground, not the air in any home.

What it means

Beauregard Parish, Questions

Questions about radon in Beauregard Parish

Are radon levels high in Beauregard Parish?

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.

Which counties border Beauregard Parish?

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

Testing a home in Beauregard Parish

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 monitors3

See every kit and monitor

Best radon monitors for Beauregard Parish homes, compared

Explore

Beauregard Parish, Bordering counties

Counties bordering Beauregard Parish

Calculated by Radon411

Beauregard Parish, Cities and towns

Cities and towns in Beauregard Parish

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.

The cities and towns in Beauregard Parish by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
DeRidderextends beyond Beauregard Parish9,503−3.9%Counted whole
Merryville950−2.3%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

Homes in Beauregard Parish

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 in Beauregard Parish, Louisiana, 2019 to 2023
HomesBeauregard ParishLouisiana
Housing units15,9682,094,002
Detached houses63%65%
In buildings of 5 or more2%11%
Mobile homes31%13%
Built before 196013%19%
Built since 200036%27%
Middle year built19921982
Owner-occupied83%67%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.