City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9097
Ely
County, IA
62 C
#9098 Emporia
County, VA
62 C
#9099 Fajardo
County, PR
62 C
#9100 Flippin
County, AR
62 C
#9101 Fort Defiance
County, AZ
62 C
#9102 Gainesboro
County, TN
62 C
#9103 Gambier
County, OH
62 C
#9104 Glendive
County, MT
62 C
#9105 Gloucester
County, MA
62 C
#9106 Hardwick
County, VT
62 C
#9107 Hardy
County, AR
62 C
#9108 Hermanville
County, MS
62 C
#9109 Hinton
County, OK
62 C
#9110 Jamaica Beach
County, TX
62 C
#9111 Lacy Lakeview
County, TX
62 C
#9112 Lakeland
County, FL
62 C
#9113 Land O' Lakes
County, FL
62 C
#9114 Lathrop
County, MO
62 C
#9115 Lawrence
County, MA
62 C
#9116 Leesville
County, LA
62 C
#9117 Lubbock
County, TX
62 C
#9118 Lufkin
County, TX
62 C
#9119 Marlborough
County, MA
62 C
#9120 Midwest City
County, OK
62 C
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.