City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4345
Surrey
County, ND
92 A
#4346 Sutherlin
County, OR
92 A
#4347 Swansea
County, SC
92 A
#4348 Tabor
County, IA
92 A
#4349 Tabor
County, SD
92 A
#4350 Taneyville
County, MO
92 A
#4351 Tennessee Ridge
County, TN
92 A
#4352 Tennille
County, GA
92 A
#4353 Terrebonne
County, OR
92 A
#4354 Teutopolis
County, IL
92 A
#4355 The Hills
County, TX
92 A
#4356 The Villages
County, FL
92 A
#4357 Thomasville
County, NC
92 A
#4358 Tioga
County, LA
92 A
#4359 Trafalgar
County, IN
92 A
#4360 Trimble
County, MO
92 A
#4361 Troutdale
County, OR
92 A
#4362 Troy
County, IL
92 A
#4363 Turner
County, OR
92 A
#4364 Turtle Lake
County, WI
92 A
#4365 Turtletown
County, TN
92 A
#4366 Tylertown
County, MS
92 A
#4367 Uhland
County, TX
92 A
#4368 Union
County, WA
92 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.