STATE / TERRITORY LEDGER
Louisiana drinking water system records
EPA’s September 2026 export lists 313 active community water systems in Louisiana, with 91 current-violation flags and 31 serious-violator flags among covered systems serving at least 2,500 people.
Source: EPA SDWIS system-search export · Active community systems · Snapshot 13 Sep 2026
Systems313active CWS · pop. 2,500+
Population served4,773,633reported total; may overlap
Current violation flag29.1%91 systems
Serious-violator flag9.9%31 systems
01 / LARGEST SYSTEMS
Louisiana community water systems
EPA’s covered Louisiana records include 313 active community systems reporting a combined population-served total of 4,773,633, which may overlap.
Population served is a system-reported service figure. It is not a count of unique state residents.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Baton Rouge Water CompanyLA1033005 | 596,844 | Ground water | No current violation flagged |
| New Orleans Carrollton Water WorksLA1071009 | 334,903 | Surface water | No current violation flagged |
| E Jefferson Ww District 1LA1051001 | 275,163 | Surface water | No current violation flagged |
| City Of Shreveport Water SystemLA1017031 | 192,378 | Surface water | Current serious-violator flag |
| Lafayette Utilities Water SystemLA1055017 | 169,389 | Ground water | No current violation flagged |
| W Jefferson Ww District 2LA1051004 | 140,264 | Surface water | No current violation flagged |
| Schriever Water Treatment Service AreaLA1109002 | 116,460 | Surface water | No current violation flagged |
| Lafourche Water District 1LA1057001 | 81,609 | Surface water | No current violation flagged |
| City Of Bossier City Water SystemLA1015004 | 79,506 | Surface water | No current violation flagged |
| City Of Lake Charles Water SystemLA1019029 | 79,500 | Ground water | No current violation flagged |
| Ward Ii Water DistrictLA1063039 | 78,147 | Ground water | No current violation flagged |
| Tangipahoa Parish Water DistrictLA1105008 | 75,873 | Ground water | No current violation flagged |
| City Of Alexandria Water SystemLA1079001 | 66,798 | Ground water | No current violation flagged |
| Lawco - New Iberia Water SystemLA1045009 | 59,928 | Ground water | No current violation flagged |
| City Of Monroe Water SystemLA1073031 | 57,000 | Surface water | Current serious-violator flag |
| St Charles Parish Dept Of WaterworksLA1089001 | 52,879 | Surface water | No current violation flagged |
| New Orleans Algiers Water WorksLA1071001 | 52,785 | Surface water | No current violation flagged |
| St Bernard Parish WaterworksLA1087001 | 44,783 | Surface water | No current violation flagged |
| Slidell Water SupplyLA1103041 | 35,547 | Ground water | No current violation flagged |
| St John Water District 3LA1095007 | 31,965 | Ground water | No current violation flagged |
| Zachary Water SystemLA1033030 | 31,569 | Ground water | No current violation flagged |
| City Of Natchitoches Water SystemLA1069007 | 27,693 | Surface water | No current violation flagged |
| City Of Denham Springs Water SystemLA1063004 | 25,725 | Ground water | No current violation flagged |
| Sulphur City Of Water SystemLA1019044 | 24,489 | Ground water | No current violation flagged |
| Vermilion Waterworks District 1LA1113034 | 24,132 | Ground water | No current violation flagged |
| Beauregard Water Works Dist #3LA1011008 | 24,000 | Ground water | No current violation flagged |
| City Of Ruston Water SystemLA1061017 | 22,468 | Ground water | No current violation flagged |
| Assumption Parish Ww District 1LA1007001 | 21,366 | Surface water | No current violation flagged |
| City Of Hammond Water SystemLA1105009 | 21,135 | Ground water | No current violation flagged |
| Calcasieu Parish Ww District No 1LA1019051 | 20,837 | Ground water | No current violation flagged |
| City Of Opelousas Water SystemLA1097010 | 20,388 | Ground water | No current violation flagged |
| City Of Pineville Water SystemLA1079016 | 20,358 | Ground water | Current health-based flag |
| Rapides Parish Waterworks District 3LA1079017 | 19,983 | Surface water | No current violation flagged |
| Belle Chasse Water DistrictLA1075001 | 19,644 | Surface water | No current violation flagged |
| St Tam Parish- Bedico -Faubourg-CoquilleLA1103149 | 18,372 | Ground water | No current violation flagged |
| Bastrop Water SystemLA1067003 | 18,105 | Ground water | Current serious-violator flag |
| Lawco - Crowley Water SystemLA1001002 | 17,733 | Ground water | No current violation flagged |
| St Tam Parish - Briarwood TerraceLA1103079 | 17,536 | Ground water | Other current violation flag |
| Gretna WaterworksLA1051003 | 17,026 | Surface water | No current violation flagged |
| Lpwdn North RegionLA1055191 | 16,833 | Ground water purchased | No current violation flagged |
| City Of Gonzales Water SystemLA1005030 | 16,806 | Ground water | No current violation flagged |
| Town Of Blanchard Water SystemLA1017006 | 16,326 | Surface water | No current violation flagged |
| City Of Minden Water SystemLA1119021 | 16,281 | Ground water | No current violation flagged |
| City Of Covington Water SupplyLA1103011 | 16,185 | Ground water | Current health-based flag |
| West Monroe Water SystemLA1073056 | 16,005 | Ground water | No current violation flagged |
| Town Of Walker Water SystemLA1063017 | 15,813 | Ground water | No current violation flagged |
| Lawco - Eunice Water SystemLA1097022 | 15,393 | Ground water | No current violation flagged |
| Lpwd SouthLA1055156 | 15,132 | Ground water purchased | No current violation flagged |
| Thibodaux WaterworksLA1057003 | 14,862 | Surface water | No current violation flagged |
| East Feliciana Rural WaterLA1037004 | 14,829 | Ground water | No current violation flagged |
| West Hwy 80 Ark Road WsLA1073055 | 14,649 | Ground water | No current violation flagged |
| Calcasieu Parish Ww Dist 9 CarlyssLA1019116 | 14,502 | Ground water | No current violation flagged |
| City Of Deridder Water SystemLA1011001 | 14,400 | Ground water | No current violation flagged |
| City Of Abbeville Water SystemLA1113001 | 14,217 | Ground water | No current violation flagged |
| City Of Plaquemine Water SystemLA1047005 | 14,043 | Ground water | No current violation flagged |
| City Of Bogalusa Water SystemLA1117001 | 14,000 | Ground water | Current health-based flag |
| City Of Baker Water SystemLA1033003 | 13,855 | Ground water | No current violation flagged |
| West Baton Rouge Water Works District 2LA1121018 | 13,437 | Ground water | No current violation flagged |
| Gowc North Water SystemLA1073120 | 13,287 | Ground water | No current violation flagged |
| Barksdale Afb Water SystemLA1015022 | 13,000 | Surface water purchased | No current violation flagged |
| City Of Mandeville Water SupplyLA1103023 | 13,000 | Ground water | No current violation flagged |
| Village Of Parks Water SystemLA1099008 | 12,801 | Ground water | Current serious-violator flag |
| City Of Morgan City Water SystemLA1101005 | 12,703 | Surface water | No current violation flagged |
| Cecilia Water CorporationLA1099005 | 12,420 | Ground water | No current violation flagged |
| Buckeye Water District 50LA1079004 | 12,078 | Ground water | No current violation flagged |
| West Feliciana Consol Wwks District 13LA1125010 | 12,045 | Ground water | No current violation flagged |
| Gowc East Water SystemLA1073121 | 11,742 | Ground water | No current violation flagged |
| Houma Water Treatment Service AreaLA1109001 | 11,658 | Surface water | No current violation flagged |
| City Of Carencro Water SystemLA1055005 | 11,301 | Ground water | Current health-based flag |
| Utilities Inc - North Park Water SupplyLA1103124 | 11,298 | Ground water | No current violation flagged |
| Cheniere Drew North Water SystemLA1073100 | 11,280 | Ground water | No current violation flagged |
| City Of Rayne Water SystemLA1001007 | 10,908 | Ground water | No current violation flagged |
| Fort Polk South Water SystemLA1115065 | 10,902 | Ground water | No current violation flagged |
| Village Water SystemLA1015018 | 10,890 | Ground water | Current health-based flag |
| Bayou Liberty Water AssociationLA1103005 | 10,791 | Ground water | No current violation flagged |
| Southwest Ouachita Waterworks, IncLA1073047 | 10,725 | Ground water | Current serious-violator flag |
| Pointe Coupee Water Works District 1LA1077043 | 10,629 | Ground water | Current health-based flag |
| City Of Youngsville Water SystemLA1055035 | 10,614 | Ground water | No current violation flagged |
| City Of Leesville Water SystemLA1115019 | 10,545 | Ground water | Current health-based flag |
| St John Water District 1LA1095003 | 10,484 | Surface water | No current violation flagged |
| Port Sulphur Water DistrictLA1075006 | 10,308 | Surface water | No current violation flagged |
| City Of Broussard Purchase Water SystemLA1055193 | 10,242 | Ground water purchased | No current violation flagged |
| Milton Water SystemLA1055046 | 10,200 | Ground water | No current violation flagged |
| Magnolia-Eden IslesLA1103013 | 10,155 | Ground water | No current violation flagged |
| Bayou Teche Water WorksLA1099002 | 10,137 | Ground water | Current health-based flag |
| City Of Breaux Bridge Water SystemLA1099003 | 10,098 | Ground water | Current health-based flag |
| City Of Jennings Water SystemLA1053003 | 9,837 | Ground water | Current health-based flag |
| Jeff Davis Water And Sewer Commission 1LA1053014 | 9,780 | Ground water | Current monitoring/reporting flag |
| Parish Utilities Of AscensionLA1005035 | 9,732 | Surface water | Current health-based flag |
| Water & Sewer Commission 4 Of St MaryLA1101011 | 9,709 | Surface water | No current violation flagged |
| Brownville Water SystemLA1073004 | 9,696 | Ground water | Current health-based flag |
| City Of Scott Water SystemLA1055026 | 9,696 | Ground water purchased | No current violation flagged |
| Town Of Leonville Water SystemLA1097005 | 9,552 | Ground water | No current violation flagged |
| Mire Branch Water CorporationLA1001024 | 9,480 | Ground water | No current violation flagged |
| Fort Polk North Water SystemLA1115064 | 9,420 | Ground water | No current violation flagged |
| Kiroli Darbonne WsLA1073020 | 9,210 | Ground water | No current violation flagged |
| Town Of New Roads Water SystemLA1077026 | 9,024 | Ground water | Current monitoring/reporting flag |
| Town Of Livingston Water SystemLA1063013 | 8,946 | Ground water | No current violation flagged |
| Iberia Water Works District 3 - CoteauLA1045002 | 8,775 | Ground water | No current violation flagged |
| Wwks District 2 Of St HelenaLA1091007 | 8,772 | Ground water | No current violation flagged |
| Magnolia Plantation Water System IncLA1113032 | 8,769 | Ground water | No current violation flagged |
| Tallulah Water SystemLA1065003 | 8,601 | Ground water | Current serious-violator flag |
| Westwego WaterworksLA1051005 | 8,534 | Surface water purchased | No current violation flagged |
| City Of Patterson Water SystemLA1101006 | 8,456 | Surface water | No current violation flagged |
| Natchitoches Parish Wwks District 2LA1069006 | 8,415 | Ground water | Other current violation flag |
| City Of Franklin Water SupplyLA1101003 | 8,325 | Surface water | Current serious-violator flag |
| Lewisburg Bellevue Water SystemLA1097006 | 8,226 | Ground water | No current violation flagged |
| Southwest Allen Ww District No 2LA1003009 | 8,106 | Ground water | No current violation flagged |
| St Tam Parish - Cross Gates SdLA1103053 | 8,037 | Ground water | No current violation flagged |
| Town Of Benton Water SystemLA1015002 | 8,037 | Surface water purchased | No current violation flagged |
| Magnolia-GreenleavesLA1103118 | 8,031 | Ground water | No current violation flagged |
| North Franklin Water WorksLA1041003 | 7,989 | Ground water | Current health-based flag |
| St Mary Water & Sewer Comm #3LA1101010 | 7,828 | Surface water | No current violation flagged |
| Springhill Water SystemLA1119028 | 7,800 | Ground water | Current health-based flag |
| Lee Road Water CorporationLA1103020 | 7,665 | Ground water | No current violation flagged |
| City Of Youngsville Purchase WsLA1055195 | 7,623 | Ground water purchased | Current monitoring/reporting flag |
| North Desoto Water SystemLA1031011 | 7,608 | Ground water | No current violation flagged |
| City Of Marksville Water SystemLA1009011 | 7,593 | Ground water purchased | No current violation flagged |
| Winnsboro Water SystemLA1041006 | 7,518 | Ground water | Current serious-violator flag |
| St James Water District 2LA1093005 | 7,513 | Surface water | No current violation flagged |
| City Of Mansfield Water SystemLA1031009 | 7,512 | Surface water | No current violation flagged |
| South Monroe Ws GowcLA1073046 | 7,335 | Ground water | No current violation flagged |
| Savoy Swords Water System IncLA1097024 | 7,326 | Ground water | No current violation flagged |
| Town Of Albany Water SystemLA1063022 | 7,305 | Ground water | No current violation flagged |
| City Of St Martinville Water SystemLA1099007 | 7,263 | Ground water | Current serious-violator flag |
| St James Water District 1LA1093004 | 7,200 | Surface water | No current violation flagged |
| City Of Winnfield Water SystemLA1127012 | 7,194 | Ground water | Current serious-violator flag |
| Desoto Parish Water Works District 1LA1031030 | 7,173 | Surface water | No current violation flagged |
| Sabine Parish Water District 1LA1085036 | 6,924 | Ground water | Current monitoring/reporting flag |
| Concordia Waterworks District 1LA1029003 | 6,921 | Ground water | No current violation flagged |
| Houston River Waterworks District 11LA1019119 | 6,915 | Ground water | No current violation flagged |
| Magnolia-Resolve WhisperwoodLA1103046 | 6,867 | Ground water | No current violation flagged |
| Calcasieu Parish Ww District 8LA1019118 | 6,834 | Ground water | No current violation flagged |
| Southeast Waterworks District 2LA1113031 | 6,810 | Ground water | No current violation flagged |
| City Of Port Allen Water SystemLA1121014 | 6,759 | Ground water | Other current violation flag |
| Ebarb Wwks Dist # 1 - Aimwell AreaLA1085059 | 6,738 | Ground water purchased | Current serious-violator flag |
| City Of Pontchatoula Water SystemLA1105019 | 6,657 | Ground water | No current violation flagged |
| East Iberville Water SystemLA1047007 | 6,657 | Ground water purchased | No current violation flagged |
| Beauregard District No 2 Ward No 5LA1011012 | 6,613 | Ground water | No current violation flagged |
| City Of Ville Platte Water SystemLA1039010 | 6,590 | Ground water | Current health-based flag |
| Intracoastal Water System WestLA1047002 | 6,489 | Surface water | Current serious-violator flag |
| Plaisance Water SystemLA1097012 | 6,465 | Ground water | No current violation flagged |
| East Central Vernon Water SystemLA1115117 | 6,363 | Ground water | No current violation flagged |
| Louisiana State PenitentiaryLA1125005 | 6,362 | Ground water | No current violation flagged |
| Town Of Vidalia Water SystemLA1029011 | 6,354 | Ground water | No current violation flagged |
| Utilities Inc - Kingspoint SubdivisionLA1103055 | 6,351 | Ground water | No current violation flagged |
| Town Of Jonesboro Water SystemLA1049010 | 6,231 | Ground water | Current serious-violator flag |
| Cadeville Water DistrictLA1073060 | 6,219 | Ground water | Current health-based flag |
| City Of Jeanerette Water SystemLA1045004 | 6,189 | Ground water | No current violation flagged |
| City Of Oakdale Water SystemLA1003006 | 6,114 | Ground water | Current monitoring/reporting flag |
| Prairie Ronde Water System IncLA1097014 | 6,090 | Ground water | No current violation flagged |
| Grambling State University WsLA1061005 | 6,000 | Ground water | Current health-based flag |
| South Toledo Bend Water DistrictLA1085055 | 5,943 | Ground water | No current violation flagged |
| City Of Lake Providence Water SystemLA1035002 | 5,850 | Ground water | Current serious-violator flag |
| Waterworks District 7LA1017052 | 5,817 | Ground water | No current violation flagged |
| Magnolia - Town & Country ServiceLA1073054 | 5,715 | Surface water purchased | No current violation flagged |
| Jeff Davis Central Waterworks DistrictLA1053012 | 5,709 | Ground water | No current violation flagged |
| Fifth Ward Water SystemLA1009007 | 5,676 | Ground water | No current violation flagged |
| Rapides Island Water Association IncLA1079020 | 5,658 | Ground water | No current violation flagged |
| East Side Water SystemLA1039003 | 5,640 | Ground water | No current violation flagged |
| Wbr District 4 -Section Road WintervilleLA1121027 | 5,571 | Ground water | No current violation flagged |
| Henderson Nina Water System IncLA1099006 | 5,535 | Ground water | No current violation flagged |
| Cypress Black Bayou Water SystemLA1015040 | 5,520 | Surface water purchased | No current violation flagged |
| St Mary Parish W&S #2 Bayou VistaLA1101015 | 5,379 | Surface water purchased | No current violation flagged |
| Lawco - Dequincy Water SystemLA1019008 | 5,370 | Ground water | No current violation flagged |
| Town Of Haughton Water SystemLA1015011 | 5,355 | Ground water | Current serious-violator flag |
| Town Of Farmerville Water SystemLA1111005 | 5,352 | Ground water | Current health-based flag |
| Calcasieu Parish Ww District No 4LA1019053 | 5,340 | Ground water | Current serious-violator flag |
| Egan Water CorporationLA1001025 | 5,337 | Ground water | Current health-based flag |
| Vernon Parish Water And Sewer CommissionLA1115071 | 5,295 | Ground water | No current violation flagged |
| South Grant Water CorporationLA1043008 | 5,289 | Ground water | No current violation flagged |
| Village Of Turkey Creek Water SystemLA1039013 | 5,289 | Ground water | No current violation flagged |
| Monterey Rural Water System IncLA1029007 | 5,250 | Ground water | No current violation flagged |
| Town Of Greenwood Water SystemLA1017014 | 5,205 | Surface water | No current violation flagged |
| St Tammany Water District #2LA1103033 | 5,200 | Ground water | No current violation flagged |
| Town Of Bunkie Water SystemLA1009004 | 5,169 | Ground water | Current monitoring/reporting flag |
| City Of Broussard Water SystemLA1055003 | 5,151 | Ground water | No current violation flagged |
| Calcasieu Parish Ww District No 5LA1019084 | 5,088 | Ground water | No current violation flagged |
| City Of BerwickLA1101014 | 5,024 | Surface water purchased | No current violation flagged |
| Kolin Ruby Wise Waterwork District 11 ALA1079023 | 4,992 | Ground water | No current violation flagged |
| Town Of Grambling Water SystemLA1061006 | 4,949 | Ground water | Current serious-violator flag |
| Pinehill Waterworks DistrictLA1017027 | 4,926 | Surface water purchased | Current serious-violator flag |
| Westlake City Of Water SystemLA1019054 | 4,858 | Ground water | Current health-based flag |
| Town Of Rayville Water SystemLA1083006 | 4,842 | Ground water | Current serious-violator flag |
| Fourth Ward Water WorksLA1063005 | 4,839 | Ground water | Current health-based flag |
| Town Of Woodworth Water SystemLA1079027 | 4,818 | Ground water | No current violation flagged |
| Calcasieu Parish Ww District 7LA1019114 | 4,791 | Ground water | No current violation flagged |
| Town Of Lutcher WaterworksLA1093003 | 4,781 | Surface water | Current health-based flag |
| St Landry Water Works District 2 RuralLA1097033 | 4,761 | Ground water | No current violation flagged |
| Magnolia-The MeadowsLA1103106 | 4,701 | Ground water | No current violation flagged |
| Beau Chene Water SystemLA1103006 | 4,650 | Ground water | No current violation flagged |
| Bayou Des Cannes Water SystemLA1039016 | 4,578 | Ground water | No current violation flagged |
| Gardner Community Water SystemLA1079010 | 4,566 | Ground water | No current violation flagged |
| Town Of Mamou Water SystemLA1039005 | 4,559 | Ground water | No current violation flagged |
| Colyell Community WaterLA1063003 | 4,544 | Ground water | No current violation flagged |
| Town Of Homer Water SystemLA1027003 | 4,524 | Ground water | Current health-based flag |
| Keatchie Water SystemLA1031007 | 4,446 | Ground water | Current serious-violator flag |
| United Water SystemLA1099009 | 4,446 | Ground water | Other current violation flag |
| Town Of Many Water SystemLA1085016 | 4,428 | Surface water | No current violation flagged |
| West Vernon Parish Waterworks DistrictLA1115121 | 4,365 | Ground water | No current violation flagged |
| Town Of Sunset Water SystemLA1097015 | 4,356 | Ground water | No current violation flagged |
| City Of Kaplan Water SystemLA1113009 | 4,340 | Ground water | No current violation flagged |
| Wbr Public UtilitiesLA1121008 | 4,329 | Ground water | No current violation flagged |
| Town Of Welsh Water SystemLA1053006 | 4,311 | Ground water | No current violation flagged |
| Town Of Amite Water SystemLA1105001 | 4,300 | Ground water | Current health-based flag |
| Utilities Inc - Hammond HeightsLA1105010 | 4,281 | Ground water | No current violation flagged |
| South Rayne Water CorporationLA1001022 | 4,254 | Ground water | No current violation flagged |
| Village Of Plaucheville Water SystemLA1009013 | 4,233 | Ground water | No current violation flagged |
| Varnado Water WorksLA1117006 | 4,230 | Ground water | No current violation flagged |
| Archibald Water SystemLA1083012 | 4,200 | Ground water | No current violation flagged |
| Bogue-Lusa Water Works DistrictLA1117009 | 4,200 | Ground water | No current violation flagged |
| Jeff Davis Water District 4LA1053013 | 4,194 | Ground water | No current violation flagged |
| City Of Broussard Hwy 90 Water SystemLA1055194 | 4,182 | Ground water | No current violation flagged |
| Town Of Church Point Water SystemLA1001001 | 4,176 | Ground water | Current health-based flag |
| Town Of Franklinton Water SystemLA1117002 | 4,150 | Ground water | No current violation flagged |
| Magnolia-Lakeshore EstatesLA1103171 | 4,146 | Ground water | No current violation flagged |
| Town Of Arcadia Water SystemLA1013003 | 4,146 | Ground water | Current health-based flag |
| Lpwd North Production FacilityLA1055171 | 4,122 | Ground water | No current violation flagged |
| Tangipahoa (Second Ward) Water DistrictLA1105077 | 4,112 | Ground water | No current violation flagged |
| Town Of Vinton Water SystemLA1019048 | 4,101 | Ground water | No current violation flagged |
| South Vernon Parish Waterworks DistrictLA1115118 | 4,083 | Ground water | Current health-based flag |
| Wesley Chapel Water SystemLA1061020 | 4,080 | Ground water | No current violation flagged |
| Town Of Delhi Water SupplyLA1083002 | 4,071 | Ground water | No current violation flagged |
| Town Of Vivian Water SystemLA1017037 | 4,050 | Surface water | No current violation flagged |
| Lpwdn South RegionLA1055192 | 4,032 | Ground water purchased | No current violation flagged |
| North Of Crowley Water CorporationLA1001023 | 4,020 | Ground water | No current violation flagged |
| Town Of Arnaudville Water SystemLA1099001 | 3,957 | Ground water | No current violation flagged |
| Avoyelles Parish Waterworks District 1LA1009002 | 3,900 | Ground water | No current violation flagged |
| Pollock Area Water System IncLA1043017 | 3,900 | Ground water | No current violation flagged |
| South Claiborne Water SystemLA1027006 | 3,843 | Ground water | No current violation flagged |
| Tensas Water District AssociationLA1107009 | 3,843 | Surface water | Current serious-violator flag |
| Town Of Port Barre Water SystemLA1097013 | 3,828 | Ground water | No current violation flagged |
| Town Of Ferriday Water SystemLA1029005 | 3,816 | Ground water | Current serious-violator flag |
| Brouillette Water System IncLA1009003 | 3,732 | Ground water | No current violation flagged |
| Avoyelles Ward One Water System IncLA1009016 | 3,726 | Ground water | No current violation flagged |
| Lawtell Water Works District No 1LA1097004 | 3,717 | Ground water | No current violation flagged |
| St John Water District 2LA1095002 | 3,702 | Surface water | No current violation flagged |
| Town Of Abita Springs Water SystemLA1103002 | 3,693 | Ground water | No current violation flagged |
| Town Of Iowa Water SystemLA1019026 | 3,636 | Ground water | No current violation flagged |
| Town Of Jena Water SystemLA1059003 | 3,614 | Ground water | No current violation flagged |
| Town Of Haynesville Water SystemLA1027002 | 3,600 | Ground water | Current health-based flag |
| Village Of Forest HillLA1079009 | 3,600 | Ground water | No current violation flagged |
| West Allen Parish Water SystemLA1003010 | 3,582 | Ground water | No current violation flagged |
| Lena Water System IncLA1079019 | 3,540 | Ground water | No current violation flagged |
| Walnut Bayou Water AssociationLA1065004 | 3,531 | Ground water | Current health-based flag |
| River Road Water SystemLA1083008 | 3,510 | Ground water | Current health-based flag |
| Cameron Parish Ww District 11-Sweet LakeLA1023011 | 3,507 | Ground water | Current serious-violator flag |
| New Carroll Water SystemLA1123005 | 3,507 | Ground water | No current violation flagged |
| Consolidated Waterworks District 2LA1067012 | 3,498 | Ground water | No current violation flagged |
| Point Blue/Chataiginer Water SystemLA1039006 | 3,471 | Ground water | Current health-based flag |
| Rural Franklinton WaterLA1117003 | 3,450 | Ground water | No current violation flagged |
| Town Of Maurice Water SystemLA1113019 | 3,450 | Ground water | No current violation flagged |
| Turkey Creek Water SystemLA1041012 | 3,429 | Ground water | Current serious-violator flag |
| Greater Ward 1 Waterworks DistrictLA1061007 | 3,333 | Ground water | No current violation flagged |
| Town Of Pearl RiverLA1103157 | 3,333 | Ground water | No current violation flagged |
| West Grant Water AssociationLA1043014 | 3,324 | Ground water | Current serious-violator flag |
| Culbertson Water SystemLA1061024 | 3,300 | Ground water | No current violation flagged |
| Milton Purchase Water SystemLA1055196 | 3,300 | Ground water purchased | No current violation flagged |
| Town Of Coushatta Water SystemLA1081001 | 3,300 | Ground water | Current health-based flag |
| Town Of MaringouinLA1047003 | 3,300 | Ground water | No current violation flagged |
| Town Of New Llano Water SystemLA1115022 | 3,300 | Ground water | Current health-based flag |
| Darbonne Ws SouthLA1111023 | 3,261 | Ground water | No current violation flagged |
| St Martin Water Works District 3 - CadeLA1099028 | 3,249 | Ground water | Current monitoring/reporting flag |
| Village Of Hessmer Water SystemLA1009008 | 3,246 | Ground water | Current monitoring/reporting flag |
| Lasalle Waterworks District 1LA1059002 | 3,240 | Ground water | No current violation flagged |
| Consolidated Wwks District 1 Of BossierLA1015026 | 3,210 | Ground water | No current violation flagged |
| Town Of Kinder Water SystemLA1003005 | 3,195 | Ground water purchased | No current violation flagged |
| Darbonne Ws NorthLA1111024 | 3,186 | Ground water | Current monitoring/reporting flag |
| Calcasieu Ww #14 Ward 5LA1019042 | 3,150 | Ground water | No current violation flagged |
| Sandy Lake Water SupplyLA1025008 | 3,141 | Ground water | No current violation flagged |
| Emc Water System IncLA1079006 | 3,135 | Ground water | No current violation flagged |
| East Richland Ww DistrictLA1083003 | 3,120 | Ground water purchased | No current violation flagged |
| Town Of Cottonport Water SystemLA1009005 | 3,120 | Ground water | Current monitoring/reporting flag |
| West Winnsboro Water SystemLA1041009 | 3,078 | Ground water | No current violation flagged |
| Town Of Independence Water SystemLA1105012 | 3,052 | Ground water | Current health-based flag |
| Lpwdn Purchase West ScottLA1055172 | 3,051 | Ground water purchased | No current violation flagged |
| Hebert Water SystemLA1021006 | 3,048 | Ground water | No current violation flagged |
| East Allen Parish Water WorksLA1003011 | 3,030 | Ground water | No current violation flagged |
| St Martin Water District 4 - CatahoulaLA1099004 | 3,000 | Ground water purchased | Current monitoring/reporting flag |
| Town Of Erath Water SystemLA1113005 | 2,985 | Ground water | No current violation flagged |
| Town Of Oak Grove Water SystemLA1123006 | 2,955 | Ground water | No current violation flagged |
| Reddell Vidrine Water DistrictLA1039007 | 2,952 | Ground water | Current health-based flag |
| Intracoastal Water System EastLA1047030 | 2,940 | Ground water | No current violation flagged |
| St Tammany Water District 3LA1103056 | 2,920 | Ground water | Current serious-violator flag |
| Town Of Gramercy WaterworksLA1093002 | 2,860 | Surface water | Current serious-violator flag |
| Central Claiborne Water SystemLA1027009 | 2,859 | Ground water | Current health-based flag |
| Sligo Water System IncorporatedLA1015044 | 2,850 | Ground water | Current health-based flag |
| Magnolia-Guste IslandLA1103189 | 2,847 | Ground water | No current violation flagged |
| Egan Water Corporation No 2LA1001026 | 2,835 | Ground water | Current health-based flag |
| East Columbia Water SystemLA1021004 | 2,829 | Ground water | No current violation flagged |
| St Mary Parish Water Sewerage Comm 1LA1101009 | 2,823 | Surface water | Current serious-violator flag |
| Town Of Jonesville Water SystemLA1025006 | 2,811 | Ground water | Current monitoring/reporting flag |
| Belmont Waterworks IncLA1085053 | 2,805 | Ground water | Current health-based flag |
| East Feliciana Wwks District 7LA1037014 | 2,805 | Ground water | Current health-based flag |
| Town Of Jackson Water SystemLA1037006 | 2,736 | Ground water | No current violation flagged |
| Lincoln Parish Waterworks District #3LA1061010 | 2,730 | Ground water | No current violation flagged |
| Town Of Hornbeck Water SystemLA1115016 | 2,730 | Ground water | No current violation flagged |
| Town Of Oberlin Water SystemLA1003007 | 2,730 | Ground water | Current health-based flag |
| Village Of Cankton Water SystemLA1097025 | 2,730 | Ground water | No current violation flagged |
| Utilities Inc - Lake Village SdLA1103064 | 2,724 | Ground water | No current violation flagged |
| Town Of Lake Arthur Water SystemLA1053005 | 2,706 | Ground water | No current violation flagged |
| Utilities Inc- Whitehall/ Head Of IslandLA1063028 | 2,676 | Ground water | No current violation flagged |
| Pendleton Water AssociationLA1085046 | 2,634 | Surface water | Current serious-violator flag |
| Avoyelles Ward 3 Waterworks DistrictLA1009017 | 2,619 | Ground water purchased | No current violation flagged |
| Evangeline Ww District 1 - Pine PrairieLA1039004 | 2,598 | Ground water | Current health-based flag |
| Prairie Road Water DistrictLA1073040 | 2,598 | Ground water | Current health-based flag |
| Town Of Olla Water SystemLA1059004 | 2,565 | Ground water | No current violation flagged |
| Town Of Basile Water SystemLA1039001 | 2,559 | Ground water purchased | No current violation flagged |
| Town Of ColfaxLA1043002 | 2,552 | Ground water | Current serious-violator flag |
| Town Of White Castle Water SystemLA1047009 | 2,550 | Ground water | Current serious-violator flag |
| Town Of Zwolle Water SystemLA1085032 | 2,520 | Ground water | Other current violation flag |
| Start Water SystemLA1083007 | 2,514 | Ground water | No current violation flagged |
| St Tam Parish Pineland Park SubdLA1103093 | 2,500 | Ground water | No current violation flagged |
02 / CITY REPORTS
Louisiana city water-system reports
Louisiana has 0 city reports meeting the publication threshold for covered systems or reported population served.
No qualifying city reports.
03 / COUNTY REPORTS
Louisiana county water-system reports
Louisiana has 56 county reports meeting the publication threshold for covered systems or reported population served.
St. Tammany Parish23 systemsLafayette Parish15 systemsCalcasieu Parish14 systemsOuachita Parish13 systemsSt. Landry Parish12 systemsRapides Parish11 systemsAvoyelles Parish10 systemsSt. Martin Parish10 systemsEvangeline Parish9 systemsVernon Parish9 systemsAcadia Parish8 systemsBossier Parish8 systemsLivingston Parish8 systemsSt. Mary Parish8 systemsLincoln Parish7 systemsSabine Parish7 systemsTangipahoa Parish7 systemsVermilion Parish7 systemsAllen Parish6 systemsCaddo Parish6 systemsIberville Parish6 systemsJefferson Davis Parish6 systemsRichland Parish6 systemsWashington Parish5 systemsClaiborne Parish4 systemsConcordia Parish4 systemsDe Soto Parish4 systemsFranklin Parish4 systemsGrant Parish4 systemsJefferson Parish4 systemsSt. James Parish4 systemsWest Baton Rouge Parish4 systemsBeauregard Parish3 systemsEast Baton Rouge Parish3 systemsEast Feliciana Parish3 systemsIberia Parish3 systemsLa Salle Parish3 systemsSt. John the Baptist Parish3 systemsUnion Parish3 systemsAscension Parish2 systemsCaldwell Parish2 systemsCatahoula Parish2 systemsLafourche Parish2 systemsMadison Parish2 systemsMorehouse Parish2 systemsNatchitoches Parish2 systemsOrleans Parish2 systemsPlaquemines Parish2 systemsPointe Coupee Parish2 systemsTerrebonne Parish2 systemsWebster Parish2 systemsWest Carroll Parish2 systemsWest Feliciana Parish2 systemsAssumption Parish1 systemsSt. Bernard Parish1 systemsSt. Charles Parish1 systems