WaterQ
Arizona State Report All States
Official Status: March 2026

Is Saint Johns tap water safe to drink?

⚠ Caution Advised
D

Use extra caution — Saint Johns scores 36/100.

Safety Score
36
out of 100

Still not sure if you need a filter in Saint Johns?

Read Decision Guide →

Saint Johns

Arizona

View Arizona state report Verified: Apr 2026

Is Saint Johns tap water safe to drink?

Use extra caution — Saint Johns scores 36/100. This report aggregates EPA drinking water data across 0 local systems in Saint Johns. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 07:30 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Saint Johns.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Saint Johns?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Should you buy a water purifier in Saint Johns? See our analysis.

Baby Formula Safety

Is Saint Johns tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Saint Johns, water quality is a key factor in long-term property maintenance. With a score of 36/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Requires Mitigation

Health & Family Safety

Current records show no major contaminant spikes, making Saint Johns a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Saint Johns

EPA Compliance & Violations 60/100
Contaminant Safety Margin 36%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Saint Johns tap water safe to drink?

Use extra caution — Saint Johns scores 36/100.

How many water systems serve Saint Johns?

Saint Johns is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Saint Johns?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Saint Johns.

What is the water quality score for Saint Johns?

The water quality score for Saint Johns is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Saint Johns?

Current contaminant data for Saint Johns is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
36/100
Grade
F
Water Systems
1
Population
3,500

Saint Johns Water Quality Summary

Saint Johns, AZ receives a water quality score of 36/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Saint Johns's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.

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

Water Systems Serving Saint Johns (0)

Water system data coming soon for Saint Johns.

Related

Compare Saint Johns water quality: View all states · Contaminant library · How we score water quality