City Water Quality Rankings in Louisiana
260 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#121
Basile
County, LA
79 B
#122 Blanchard
County, LA
79 B
#123 Chalmette
County, LA
78 B
#124 Jeanerette
County, LA
78 B
#125 Jennings
County, LA
78 B
#126 Natchitoches
County, LA
78 B
#127 Elmer
County, LA
77 B
#128 Abita Springs
County, LA
76 B
#129 Calhoun
County, LA
76 B
#130 Jackson
County, LA
76 B
#131 Morgan City
County, LA
76 B
#132 Oak Grove
County, LA
76 B
#133 Olla
County, LA
76 B
#134 Pioneer
County, LA
75 B
#135 Columbia
County, LA
74 C
#136 Hessmer
County, LA
74 C
#137 Youngsville
County, LA
74 C
#138 Benton
County, LA
73 C
#139 Clinton
County, LA
72 C
#140 Donaldsonville
County, LA
72 C
#141 Downsville
County, LA
72 C
#142 Kilbourne
County, LA
72 C
#143 Cheneyville
County, LA
71 C
#144 Fordoche
County, LA
71 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.