City Water Quality Rankings in Louisiana
260 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#169
Dry Prong
County, LA
60 C
#170 Haynesville
County, LA
60 C
#171 New Orleans
County, LA
60 C
#172 Sarepta
County, LA
60 C
#173 Belle Chasse
County, LA
59 D
#174 Plain Dealing
County, LA
59 D
#175 Homer
County, LA
58 D
#176 Church Point
County, LA
56 D
#177 Simmesport
County, LA
56 D
#178 White Castle
County, LA
55 D
#179 Napoleonville
County, LA
54 D
#180 Maurice
County, LA
53 D
#181 Bell City
County, LA
52 D
#182 Elm Grove
County, LA
52 D
#183 Natchez
County, LA
52 D
#184 Roseland
County, LA
52 D
#185 Bunkie
County, LA
50 D
#186 Patterson
County, LA
50 D
#187 Ringgold
County, LA
50 D
#188 Vivian
County, LA
50 D
#189 Pineville
County, LA
49 D
#190 Winnsboro
County, LA
49 D
#191 Harrisonburg
County, LA
48 D
#192 Oakdale
County, LA
48 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.