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LA tap water quality, city by city
328 cities and towns in LA are served by an active community water system in the EPA's records. Each page below translates that system's EPA-reported history into plain English.
According to EPA SDWIS data, retrieved June 2026.
- Abbeville
- Abita Springs
- Alanta
- Albany
- Alexandria
- Amelia
- Amite
- Anacoco
- Angie
- Angola
- Arcadia
- Archibald
- Arnaudville
- Athens
- Baker
- Barksdale Afb
- Basile
- Bastrop
- Baton Rouge
- Bell City
- Belle Chasse
- Belmont
- Bentley
- Benton
- Bernice
- Berwick
- Bethany
- Bienville
- Blanchard
- Bogalusa
- Bonita
- Bordelonville
- Bossier
- Bossier City
- Boyce
- Breaux Bridge
- Broussard
- Bryceland
- Bunkie
- Calhoun
- Calvin
- Cameron
- Campti
- Cankton
- Carencro
- Carville
- Castor
- Cecilia
- Centerville
- Chalmette
- Charenton
- Chatham
- Cheneyville
- Choudrant
- Church Point
- Clarence
- Clarks
- Clayton
- Clinton
- Colfax
- Collinston
- Columbia
- Convent
- Converse
- Cotton Valley
- Cottonport
- Coushatta
- Covington
- Creole
- Crowville
- Cullen
- Delcambre
- Delhi
- Delta
- Denham Springs
- Dequincy
- Deridder
- Deville
- Dodson
- Donaldsonville
- Downsville
- Doyline
- Dry Prong
- Dubach
- Dubberly
- Duson
- Echo
- Effie
- Egan
- Elizabeth
- Elm Grove
- Elmer
- Elton
- Epps
- Erath
- Eros
- Estherwood
- Ethel
- Eunice
- Evergreen
- Farmerville
- Fenton
- Ferriday
- Fisher
- Florien
- Folsom
- Fordoche
- Forest
- Forest Hill
- Fort Johnson
- Franklin
- Franklinton
- Georgetown
- Gibsland
- Gilbert
- Glenmora
- Goldonna
- Gonzales
- Grambling
- Gramercy
- Grand Cane
- Grand Chenier
- Grand Coteau
- Grant
- Grayson
- Greensburg
- Greenwood
- Gretna
- Grosse Tete
- Gueydan
- Hackberry
- Hall Summit
- Hammond
- Harrisonburg
- Haughton
- Haynesville
- Heflin
- Hessmer
- Hineston
- Hodge
- Homer
- Hornbeck
- Hosston
- Houma
- Ida
- Independence
- Innis
- Iota
- Iowa
- Jackson
- Jeanerette
- Jefferson
- Jena
- Jennings
- Johnson Bayou
- Jonesboro
- Jonesville
- Joyce
- Kaplan
- Keithville
- Kelly
- Kentwood
- Kilbourne
- Kinder
- Krotz Springs
- Lacombe
- Lafayette
- Lake Arthur
- Lake Charles
- Lake Providence
- Lakeland
- Laplace
- Lawtell
- Leesville
- Lena
- Leonville
- Lillie
- Lisbon
- Livingston
- Livonia
- Lockport
- Logansport
- Longville
- Loranger
- Loreauville
- Luling
- Lutcher
- Madisonville
- Mamou
- Mandeville
- Mangham
- Mansfield
- Mansura
- Many
- Maringouin
- Marion
- Marksville
- Maurepas
- Maurice
- Melville
- Mer Rouge
- Mermentau
- Merryville
- Milton
- Minden
- Monroe
- Monterey
- Montgomery
- Montpelier
- Mooringsport
- Morgan City
- Morganza
- Morrow
- Morse
- Mount Hermon
- Moureauville
- Napoleonville
- Natalbany
- Natchez
- Natchitoches
- New Iberia
- New Llano
- New Orleans
- New Roads
- Newellton
- Noble
- Norwood
- Oak Grove
- Oak Ridge
- Oakdale
- Oberlin
- Oil City
- Olla
- Opelousas
- Palmetto
- Parks
- Patterson
- Pearl River
- Pelican
- Pine Praire
- Pine Prairie
- Pineville
- Pioneer
- Pitkin
- Plain Dealing
- Plaquemine
- Plaucheville
- Pleasant Hill
- Pollock
- Ponchatoula
- Port Allen
- Port Barre
- Prairieville
- Provencal
- Quitman
- Rayne
- Rayville
- Reeves
- Ridgecrest
- Ringgold
- Rodessa
- Rosedale
- Roseland
- Rosepine
- Ruston
- Saint Amant
- Saline
- Sarepta
- Scott
- Shongaloo
- Shreveport
- Sibley
- Sicily Island
- Sikes
- Simmesport
- Simpson
- Simsboro
- Singer
- Slagle
- Slaughter
- Slidell
- Springfield
- Springhill
- St Amant
- St Joseph
- St. Amant
- St. Benedict
- St. Francisville
- St. Landry
- St. Martinville
- Starks
- Start
- Sterlington
- Stonewall
- Sulphur
- Summerfield
- Sun
- Sunset
- Tallulah
- Tangipahoa
- Thibodaux
- Tickfaw
- Tioga
- Transylvania
- Trout
- Tullos
- Turkey Creek
- Urania
- Vidalia
- Ville Platte
- Vinton
- Vivian
- Walker
- Washington
- Waterproof
- Welsh
- West Monroe
- Westlake
- Westwego
- White Castle
- Wilson
- Winnfield
- Winnsboro
- Wisner
- Woodworth
- Youngsville
- Zachary
- Zwolle