Hilo
Is Hilo tap water safe to drink?
Mostly yes — Hilo scores 91/100. This report aggregates EPA drinking water data across 0 local systems in Hilo. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 02:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Hilo.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Hilo?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Hilo water? Here's what the data says.
Baby Formula Safety
What new parents in Hilo should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Hilo, but it can affect plumbing longevity and appliance lifespan. The high safety score (91/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Current records show no major contaminant spikes, making Hilo a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Hilo
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Hilo.
Frequently Asked Questions
Is Hilo tap water safe to drink?
Mostly yes — Hilo scores 91/100.
How many water systems serve Hilo?
Hilo is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Hilo?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Hilo.
What is the water quality score for Hilo?
The water quality score for Hilo is 91 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Hilo?
Current contaminant data for Hilo is being updated. Check back soon or search your specific address for the latest results.
Hilo Water Quality Summary
Hilo, HI receives a water quality score of 91/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 15 public water systems serving the area.
Hilo'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.
Hilo's score of 91 is 13 points above the Hawaii state average of 78, and above the nationwide average of roughly 78/100 across all U.S. states.
In this mid-size Hawaiian city, the local water infrastructure must support both residents and a tourism-dependent economy. Hilo's tap water is distributed through multiple distinct systems, all operating within a unique Pacific island landscape shaped by volcanic geology. For prospective homebuyers and residents, the city's outstanding water quality marks provide strong reassurance about the safety of their tap supply.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Hawaii water quality rankings report →
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Water Systems Serving Hilo (0)
Water system data coming soon for Hilo.
Check Your Specific Address
Water quality can vary by neighborhood in Hilo.
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