City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2713
Russelville
County, AR
96 A
#2714 Saginaw
County, TX
96 A
#2715 Saint George
County, KS
96 A
#2716 Salisbury
County, MO
96 A
#2717 Saluda
County, VA
96 A
#2718 San Jose
County, CA
96 A
#2719 San Leon
County, TX
96 A
#2720 San Marcos
County, TX
96 A
#2721 Santa Ynez
County, CA
96 A
#2722 Santee
County, SC
96 A
#2723 Saratoga Springs
County, UT
96 A
#2724 Savannah
County, TN
96 A
#2725 Savoy
County, TX
96 A
#2726 Scotts Hill
County, TN
96 A
#2727 Sequim
County, WA
96 A
#2728 Severn
County, MD
96 A
#2729 Seward
County, NE
96 A
#2730 Sharpsburg
County, NC
96 A
#2731 Shaw Afb
County, SC
96 A
#2732 Sheboygan Falls
County, WI
96 A
#2733 Sherwood Forest
County, MD
96 A
#2734 Shongaloo
County, LA
96 A
#2735 Shoreview
County, MN
96 A
#2736 Shullsburg
County, WI
96 A
Frequently Asked Questions
How are city water quality rankings calculated?
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 US cities directly?
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.