City Water Quality Rankings in Louisiana
264 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#169
Denham Springs
County, LA
60 C
#170 Trout
County, LA
60 C
#171 Loreauville
County, LA
59 D
#172 White Castle
County, LA
59 D
#173 Bunkie
County, LA
58 D
#174 Sarepta
County, LA
58 D
#175 Church Point
County, LA
57 D
#176 Jena
County, LA
57 D
#177 Belle Chasse
County, LA
56 D
#178 Harrisonburg
County, LA
55 D
#179 Napoleonville
County, LA
54 D
#180 Vivian
County, LA
54 D
#181 Oak Grove
County, LA
53 D
#182 Oakdale
County, LA
53 D
#183 Natchez
County, LA
52 D
#184 Roseland
County, LA
52 D
#185 Patterson
County, LA
50 D
#186 Ringgold
County, LA
50 D
#187 Bell City
County, LA
49 D
#188 Delcambre
County, LA
49 D
#189 Pineville
County, LA
49 D
#190 Winnsboro
County, LA
49 D
#191 Downsville
County, LA
48 D
#192 New Llano
County, LA
47 D
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.