Nevada Water Quality Report
Tap water quality data for 5 cities in Nevada, updated 2026.
US average: 100 ppm
5 of 5 cities violation-free
5 cities tested
5 water systems tracked
Cleanest Tap Water in Nevada
Cities with the fewest water quality issues
Las Vegas
1.5M served
Reno
442K served
Sparks
442K served
North Las Vegas
377K served
Henderson
337K served
No cities in Nevada have recorded water quality violations in the past 3 years.
Water Hardness Across Nevada
Not sure what your hardness means? Use our Water Hardness Calculator or find the best hardness test kits.
Nevada Tap Water: What You Need to Know
Nevada has 5 tracked water utilities serving approximately 3.1M residents. The average water hardness is 113 ppm (6.6 GPG), classified as Moderately Hard — above the national average of 100 ppm. Hardness ranges from 76.7 ppm in Sparks to 137 ppm in Henderson.
No cities in Nevada have recorded water quality violations in the past 3 years — an excellent compliance record. All 5 tested cities have lead levels below the EPA action level of 15 ppb.
Frequently Asked Questions About Nevada Water
Is tap water safe to drink in Nevada?
Based on available EPA data, no cities in Nevada have recorded water quality violations in the past 3 years. However, water quality can vary by building — older homes may have lead pipes. Consider testing your water at home for complete peace of mind.
How hard is the water in Nevada?
Nevada's average water hardness is 113 ppm (6.6 GPG), classified as Moderately Hard. This is above the national average of 100 ppm. Hardness varies significantly by city — use our Water Hardness Calculator to check your specific area.
Which city in Nevada has the cleanest tap water?
Based on EPA violation data, lead testing, and water quality metrics, Las Vegas ranks as having the cleanest tap water in Nevada. It has zero violations in the past 3 years and lead levels well below the EPA action level.
Where does Nevada get its water from?
The majority of Nevada's water systems (100%) use surface water as their primary source. Surface water comes from rivers, lakes, and reservoirs. Each city's specific source can vary — check individual city reports for details.
All 5 Cities
Sorted by population served
Las Vegas
Utility serves 1.5M
Reno
Utility serves 442K
Sparks
Utility serves 442K
North Las Vegas
Utility serves 377K
Henderson
Utility serves 337K