City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11497
Tecumseh
County, OK
0 F
#11498 Telluride
County, CO
0 F
#11499 Temple
County, OK
0 F
#11500 Tenaha
County, TX
0 F
#11501 Thomson
County, GA
0 F
#11502 Tidioute
County, PA
0 F
#11503 Timberon
County, NM
0 F
#11504 Tombstone
County, AZ
0 F
#11505 Tonalea
County, NM
0 F
#11506 Tooele
County, UT
0 F
#11507 Tracy City
County, TN
0 F
#11508 Transylvania
County, LA
0 F
#11509 Trinidad
County, TX
0 F
#11510 Truth Or Consequences
County, NM
0 F
#11511 Tularosa
County, NM
0 F
#11512 Tupper Lake
County, NY
0 F
#11513 Unalaska
County, AK
0 F
#11514 Uniontown
County, KY
0 F
#11515 Valdez
County, AK
0 F
#11516 Van Wert
County, OH
0 F
#11517 Verona
County, NJ
0 F
#11518 Vidor
County, TX
0 F
#11519 Wagoner
County, OK
0 F
#11520 Wainwright
County, OK
0 F
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.