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Radon Levels in Evangeline Parish, Louisiana

EPA puts Evangeline Parish in Zone 3, its lowest radon zone, and only 6 radon tests from it are on file with CDC (2015). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

How to test this homeFind a certified tester

  • Nearest county

    0.0%

    Calcasieu Parish, 66 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

    Evangeline Parish
    0.0%
    Louisiana
    0.0%

    Share of land USGS rates moderate or high potential

  • Tests reported

    6

    Too few for a share

    Evangeline Parish
    6
    Needed
    30

    2015

  • 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 Evangeline 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.

Interpret this readingWhat a fix costs

The data

Evangeline Parish, At a glance

Evangeline Parish at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Evangeline 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 Evangeline Parish, 2015

CDC holds 6 reported tests for Evangeline Parish in 2015, with a median of 1.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Evangeline Parish beside the counties around it is how this page reads it.

What these figures count

Only 6 tests were reported to CDC for Evangeline Parish over 2015, 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: 2015. Measured data period: 2005 to 2017 (every CDC figure on file).

How to read these figures

Evangeline Parish, Compared

Evangeline Parish radon figures, compared

Calculated by Radon411

CDC's largest figure for Evangeline Parish rests on 6 tests in 2015, 0 of them at or above 4 pCi/L, so each test moves its share by 16.7 points and no rank or comparison is drawn from it. Results reached as high as 1.2 pCi/L, with a middle value of 1.1 pCi/L.

The nearest counties with a figure are Calcasieu Parish (66 miles away) at 0.0%, East Baton Rouge Parish (79 miles away) at 0.0% and Tangipahoa Parish (119 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 Evangeline 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 Evangeline 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
St. Landry Parish, LAborders it425.0%0.8 pCi/L
Acadia Parish, LAborders it10.0%0.7 pCi/L
Rapides Parish, LAborders it40.0%0.8 pCi/L
The nearest Louisiana counties to Evangeline Parish with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Calcasieu Parish66 mi590.0%0.2 pCi/L
East Baton Rouge Parish79 mi480.0%0.6 pCi/L
Tangipahoa Parish119 mi430.0%0.1 pCi/L
Jefferson Parish151 mi671.5%0.2 pCi/L
Evangeline Parish ten-year laboratory totals, against Louisiana's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestLouisiana, pooledChange from the row before
2008 to 201720.0%0.7 pCi/L1.2 pCi/L2.2%Level
2007 to 201620.0%0.7 pCi/L1.2 pCi/L2.6%Level
2006 to 201520.0%0.7 pCi/L1.2 pCi/L2.8%Level
2005 to 201420.0%0.7 pCi/L1.2 pCi/L2.6%First on file

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

Evangeline Parish, Geology

The ground under Evangeline Parish

Predicted

USGS's geologic map puts all of Evangeline 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 Evangeline Parish
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Terraces and PrairiesClay, sandy clay, silt, sand, and some gravel.Low8100%

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

Evangeline Parish beside the ground around it

Neither Evangeline Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 6 parishes that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Evangeline Parish, the 6 parishes bordering it and Louisiana
AreaEPA zoneLow potentialModerate potentialHigh potential
Evangeline ParishZone 3100%NoneNone
Allen ParishZone 3100%NoneNone
St. Landry ParishZone 3100%NoneNone
Acadia ParishZone 3100%NoneNone
Rapides ParishZone 3100%NoneNone
Avoyelles 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.

Local help

Evangeline Parish, Local resources

Radon testing and mitigation in Evangeline Parish

What it means

Evangeline Parish, Questions

Questions about radon in Evangeline Parish

Are radon levels high in Evangeline Parish?

In 2015, 0.0% of the radon tests reported to CDC for Evangeline Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of the 4 nearest counties with a figure, within 151 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 1.5%.

Which counties border Evangeline Parish?

Evangeline Parish borders 6 parishes: Allen Parish, St. Landry Parish, Acadia Parish, Rapides Parish, Avoyelles Parish and Jefferson Davis Parish.

Products

Evangeline Parish, Products

Testing a home in Evangeline Parish

No CDC figure names Evangeline Parish; the nearest county with one, Calcasieu Parish (66 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 Evangeline Parish.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Evangeline Parish homes, compared

Explore

Evangeline Parish, Bordering parishes

Parishes bordering Evangeline Parish

Calculated by Radon411

Evangeline Parish, Cities and towns

Cities and towns in Evangeline Parish

About 31,980 people live in Evangeline Parish by the Census Bureau's estimate for July 1, 2025, 321 fewer than in 2020 (−1.0%). That works out to 48 people per square mile of land. No town dominates: Ville Platte, the largest, has 6,172 residents, 19.3% of the total. Testing is reported here more often than across the state: CDC's 6 reported tests for 2015 come to 0.2 for every 1,000 residents (2025 estimate), against 0.1 for Louisiana.

From Ville Platte to Chataignier, CDC publishes no figure by town: each reads Evangeline Parish's.

The cities and towns in Evangeline Parish by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Ville Platte6,172−2.2%19.3%
Mamou2,830−3.2%8.8%
Pine Prairie1,554−1.3%4.9%
Basileextends beyond Evangeline Parish1,192−1.1%Counted whole
Turkey Creek401+1.5%1.3%
Chataignier260−0.4%0.8%

6 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 Evangeline Parish is counted whole, so it has no share.

Evangeline Parish, Homes

Homes in Evangeline Parish

Of Evangeline Parish's 14,523 homes, 74% are detached houses, against 65% across Louisiana; 15% are mobile homes. Half of its homes were built before 1980, close to Louisiana's 1982: 18% date from before 1960 and 24% from 2000 or later. 65% 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 in Evangeline Parish, Louisiana, 2019 to 2023
HomesEvangeline ParishLouisiana
Housing units14,5232,094,002
Detached houses74%65%
In buildings of 5 or more5%11%
Mobile homes15%13%
Built before 196018%19%
Built since 200024%27%
Middle year built19801982
Owner-occupied65%67%

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