RadonRundown
Home › Louisiana
State overview

Radon in Louisiana

Of Louisiana's 64 counties and county equivalents, EPA places 64 in Zone 3. Zones are county-wide predictions; testing is the only way to know your home's level.

All 64 counties

CountyEPA zone
Acadia ParishZone 3
Allen ParishZone 3
Ascension ParishZone 3
Assumption ParishZone 3
Avoyelles ParishZone 3
Beauregard ParishZone 3
Bienville ParishZone 3
Bossier ParishZone 3
Caddo ParishZone 3
Calcasieu ParishZone 3
Caldwell ParishZone 3
Cameron ParishZone 3
Catahoula ParishZone 3
Claiborne ParishZone 3
Concordia ParishZone 3
De Soto ParishZone 3
East Baton Rouge ParishZone 3
East Carroll ParishZone 3
East Feliciana ParishZone 3
Evangeline ParishZone 3
Franklin ParishZone 3
Grant ParishZone 3
Iberia ParishZone 3
Iberville ParishZone 3
Jackson ParishZone 3
Jefferson Davis ParishZone 3
Jefferson ParishZone 3
LaSalle ParishZone 3
Lafayette ParishZone 3
Lafourche ParishZone 3
Lincoln ParishZone 3
Livingston ParishZone 3
Madison ParishZone 3
Morehouse ParishZone 3
Natchitoches ParishZone 3
Orleans ParishZone 3
Ouachita ParishZone 3
Plaquemines ParishZone 3
Pointe Coupee ParishZone 3
Rapides ParishZone 3
Red River ParishZone 3
Richland ParishZone 3
Sabine ParishZone 3
St. Bernard ParishZone 3
St. Charles ParishZone 3
St. Helena ParishZone 3
St. James ParishZone 3
St. John the Baptist ParishZone 3
St. Landry ParishZone 3
St. Martin ParishZone 3
St. Mary ParishZone 3
St. Tammany ParishZone 3
Tangipahoa ParishZone 3
Tensas ParishZone 3
Terrebonne ParishZone 3
Union ParishZone 3
Vermilion ParishZone 3
Vernon ParishZone 3
Washington ParishZone 3
Webster ParishZone 3
West Baton Rouge ParishZone 3
West Carroll ParishZone 3
West Feliciana ParishZone 3
Winn ParishZone 3

Source: EPA radon zones spreadsheet (EPA 402/A-16/001).