City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9529
Falls Creek
County, PA
61 C
#9530 Flora Vista
County, NM
61 C
#9531 Glen Rose
County, TX
61 C
#9532 Hillsboro
County, IL
61 C
#9533 Homer
County, GA
61 C
#9534 Hudson
County, FL
61 C
#9535 Inver Grove Heights
County, MN
61 C
#9536 Jb Mdl
County, NJ
61 C
#9537 Lanesville
County, IN
61 C
#9538 Lawrence
County, MA
61 C
#9539 Lowell
County, NC
61 C
#9540 Macomb
County, IL
61 C
#9541 Mascoutah
County, IL
61 C
#9542 Mason
County, TN
61 C
#9543 Monongah
County, WV
61 C
#9544 Montrose
County, MO
61 C
#9545 Mount Calm
County, TX
61 C
#9546 Nas Pensacola
County, FL
61 C
#9547 Normal
County, IL
61 C
#9548 Pennsylvania Furnace
County, PA
61 C
#9549 Porterville
County, CA
61 C
#9550 Poth
County, TX
61 C
#9551 Richwood
County, OH
61 C
#9552 Robbinsville
County, NC
61 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.