City Water Quality Rankings in Louisiana
260 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#145
Jena
County, LA
71 C
#146 Ponchatoula
County, LA
70 C
#147 Centerville
County, LA
69 C
#148 West Monroe
County, LA
69 C
#149 Quitman
County, LA
68 C
#150 Elton
County, LA
67 C
#151 Kentwood
County, LA
67 C
#152 Greensburg
County, LA
66 C
#153 Thibodaux
County, LA
66 C
#154 Oberlin
County, LA
65 C
#155 Pine Praire
County, LA
65 C
#156 Sicily Island
County, LA
65 C
#157 Slidell
County, LA
65 C
#158 Eunice
County, LA
64 C
#159 New Iberia
County, LA
64 C
#160 Arnaudville
County, LA
63 C
#161 Lutcher
County, LA
63 C
#162 Monroe
County, LA
63 C
#163 Amelia
County, LA
62 C
#164 Leesville
County, LA
62 C
#165 Opelousas
County, LA
62 C
#166 Crowville
County, LA
61 C
#167 Cecilia
County, LA
60 C
#168 Cottonport
County, LA
60 C
Frequently Asked Questions
How are city water quality rankings calculated in Louisiana?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two cities in Louisiana?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.