WaterQ
Mississippi State Report All States
Official Status: March 2026

Is Bay St Louis tap water safe to drink?

⚠ Caution Advised
D

Use extra caution — Bay St Louis scores 45/100.

Safety Score
45
out of 100

Still not sure if you need a filter in Bay St Louis?

Read Decision Guide →

Bay St Louis

Mississippi

View Mississippi state report Verified: Apr 2026

Is Bay St Louis tap water safe to drink?

Use extra caution — Bay St Louis scores 45/100. This report aggregates EPA drinking water data across 0 local systems in Bay St Louis. We found 0 total violations (0 unresolved).

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Bay St Louis?

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 Bay St Louis? See our analysis.

Baby Formula Safety

Is Bay St Louis tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Bay St Louis, water quality is a key factor in long-term property maintenance. With a score of 45/100, 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 Bay St Louis a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Bay St Louis

EPA Compliance & Violations 60/100
Contaminant Safety Margin 45%

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

Frequently Asked Questions

Is Bay St Louis tap water safe to drink?

Use extra caution — Bay St Louis scores 45/100.

How many water systems serve Bay St Louis?

Bay St Louis is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Bay St Louis?

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

What is the water quality score for Bay St Louis?

The water quality score for Bay St Louis 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 Bay St Louis?

Current contaminant data for Bay St Louis is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
45/100
Grade
D
Water Systems
2
Population
12,569

Bay St Louis Water Quality Summary

Bay St Louis, MS receives a water quality score of 45/100 (Grade D) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.

Bay St Louis'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 Bay St Louis (0)

Water system data coming soon for Bay St Louis.

Related

Compare Bay St Louis water quality: View all states · Contaminant library · How we score water quality