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Radon Levels in West Feliciana Parish, Louisiana

EPA puts West Feliciana 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%

    East Baton Rouge Parish, 30 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 Feliciana Parish
    0.0%
    Louisiana
    0.0%

    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. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for West Feliciana 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

West Feliciana Parish, At a glance

West Feliciana Parish at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for West Feliciana 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

No CDC test figures here

CDC has published no radon test figures for West Feliciana Parish. East Baton Rouge Parish, 30 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.

How to read these figures

West Feliciana Parish, Compared

West Feliciana Parish radon figures, compared

Calculated by Radon411

CDC's county radon counts over the 2006 to 2015 laboratory totals cover 37 Louisiana counties, and West Feliciana 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 East Baton Rouge Parish (30 miles away) at 0.0%, Tangipahoa Parish (63 miles away) at 0.0% and Jefferson Parish (108 miles away) at 1.5%. 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 Feliciana 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 West Feliciana 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
Concordia Parish, LAborders it10.0%2.6 pCi/L
The nearest Louisiana counties to West Feliciana Parish with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
East Baton Rouge Parish30 mi480.0%0.6 pCi/L
Tangipahoa Parish63 mi430.0%0.1 pCi/L
Jefferson Parish108 mi671.5%0.2 pCi/L
Calcasieu Parish124 mi590.0%0.2 pCi/L

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

West Feliciana Parish, Geology

The ground under West Feliciana Parish

Predicted

USGS's geologic map puts all of West Feliciana Parish's mapped land in one class: low radon potential. The map puts 54.0% of West Feliciana Parish in the area it calls Floodplain and 31.9% in Terraces, with one smaller area beside them. USGS gives the first a radon index of 7 and the second 8, both in the low band (5 to 8).

USGS's geologic areas under West Feliciana Parish
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
FloodplainAlluvium, marsh, silt, and clay.Low754.0%
TerracesClays, siltstone, and sandstone.Low831.9%
Loess HillsLoess.Low714.1%

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

West Feliciana Parish beside the ground around it

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

Share of land by USGS radon potential: West Feliciana Parish, the 6 counties bordering it and Louisiana
AreaEPA zoneLow potentialModerate potentialHigh potential
West Feliciana ParishZone 3100%NoneNone
Pointe Coupee ParishZone 3100%NoneNone
East Feliciana ParishZone 3100%NoneNone
Wilkinson County, MSZone 3100%NoneNone
West Baton Rouge ParishZone 3100%NoneNone
Avoyelles ParishZone 3100%NoneNone
Concordia 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

West Feliciana Parish, Questions

Questions about radon in West Feliciana Parish

Are radon levels high in West Feliciana Parish?

No CDC testing statistics are published here for West Feliciana Parish, Louisiana yet. Of the 4 nearest counties with a figure, within 124 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 1.5%.

Which counties border West Feliciana Parish?

West Feliciana Parish borders 6 counties: Pointe Coupee Parish, LA, East Feliciana Parish, LA, Wilkinson County, MS, West Baton Rouge Parish, LA, Avoyelles Parish, LA and Concordia Parish, LA.

Products

West Feliciana Parish, Products

Testing a home in West Feliciana Parish

No CDC figure names West Feliciana Parish; the nearest county with one, East Baton Rouge Parish (30 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 Feliciana Parish.

Test kits and monitors3

See every kit and monitor

Best radon monitors for West Feliciana Parish homes, compared

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West Feliciana Parish, Bordering counties

Counties bordering West Feliciana Parish

Calculated by Radon411

West Feliciana Parish, Cities and towns

Cities and towns in West Feliciana Parish

About 15,134 people live in West Feliciana Parish by the Census Bureau's estimate for July 1, 2025, 111 fewer than in 2020 (−0.7%). That works out to 38 people per square mile of land. St. Francisville, its one incorporated place, has 1,484 residents, 9.8% of the total. CDC publishes no radon test count for West Feliciana Parish; across Louisiana its counts for 2006 to 2015 come to 0.1 tests for every 1,000 residents (2025 estimate).

St. Francisville is the one incorporated place here; CDC publishes no figure by town, so it reads West Feliciana Parish's.

St. Francisville, West Feliciana Parish: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
St. Francisville1,484−3.6%9.8%

One incorporated place, 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 Feliciana Parish, Homes

Homes in West Feliciana Parish

Of West Feliciana Parish's 5,127 homes, 67% are detached houses, against 65% across Louisiana; 22% are mobile homes. Much of West Feliciana Parish is recent building: 34% of its homes have gone up since 2000 and the middle year built is 1991, against 1982 for Louisiana. Owners live in 79% of the occupied homes (Louisiana: 67%), so for most households a test and a fix are their own to order.

Homes in West Feliciana Parish, Louisiana, 2019 to 2023
HomesWest Feliciana ParishLouisiana
Housing units5,1272,094,002
Detached houses67%65%
In buildings of 5 or more3%11%
Mobile homes22%13%
Built before 196011%19%
Built since 200034%27%
Middle year built19911982
Owner-occupied79%67%

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