Las Vegas

Las Vegas, NV receives a water quality score of 83/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 42 public water systems serving the area.

Las Vegas's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Las Vegas's score of 83 is 9 points above the Nevada state average of 74, and above the nationwide average of roughly 78/100 across all U.S. states.

Residents and prospective homebuyers in this large Nevada city should note that its municipal supply performs reasonably well, especially given its location in the arid Desert Southwest where surface water is scarce. A complex network of numerous water systems serves the urban population, managing resources under dry regional conditions. While the area's tap water achieves a solid, above-average evaluation, the unique constraints of this desert environment mean that staying informed about local system updates is a practical step for any household.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Nevada water quality rankings report →