City Water Quality Rankings in Louisiana
260 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#25
Erath
County, LA
96 A
#26 Forest
County, LA
96 A
#27 Gonzales
County, LA
96 A
#28 Grant
County, LA
96 A
#29 Jefferson
County, LA
96 A
#30 Luling
County, LA
96 A
#31 Morganza
County, LA
96 A
#32 Morrow
County, LA
96 A
#33 Shongaloo
County, LA
96 A
#34 Sibley
County, LA
96 A
#35 Slagle
County, LA
96 A
#36 Summerfield
County, LA
96 A
#37 Walker
County, LA
96 A
#38 Baton Rouge
County, LA
95 A
#39 Berwick
County, LA
95 A
#40 Pollock
County, LA
95 A
#41 Bently
County, LA
94 A
#42 Bethany
County, LA
94 A
#43 Geismar
County, LA
94 A
#44 Iowa
County, LA
94 A
#45 Krotz Springs
County, LA
94 A
#46 Monterey
County, LA
94 A
#47 Pearl River
County, LA
94 A
#48 Reeves
County, LA
94 A
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.