Cornwall-On-Hudson, NY vs Buffalo, NY

When comparing tap water quality between Cornwall-On-Hudson, NY and Buffalo, NY, Buffalo currently holds a substantial 18-point lead in average WaterQ score, with a score of 98 out of 100 versus 80 for Cornwall-On-Hudson. Cornwall-On-Hudson, NY carries a B grade while Buffalo, NY carries an A. A WaterQ score reflects an aggregate of EPA-reported violations, monitoring data, and compliance history across all public water systems serving each city, so a higher score generally indicates fewer recent violations and a stronger compliance record, though it does not guarantee that every tap in the city tests identically.

Buffalo, NY is the larger of the two, with 783,608 more residents than Cornwall-On-Hudson. Buffalo is served by 10 public water systems, compared with 1 in Cornwall-On-Hudson — a difference of 9 systems. A larger number of systems often reflects a more fragmented distribution network spanning multiple utilities, suburbs, or rural service areas, while a single large utility serving a big population can benefit from economies of scale in treatment and monitoring, but may also face more complex, aging infrastructure to maintain.

For residents of either Cornwall-On-Hudson or Buffalo, the most useful next step is to look up the specific water system that serves your address, since city-wide averages combine results from every system in the area. Visit the Cornwall-On-Hudson or Buffalo city pages below for a breakdown of local systems, recent violations, and contaminant-specific data, or browse WaterQ's contaminants directory to learn what each measured substance means for health.