Key West
Is Key West tap water safe to drink?
Generally acceptable, but review local hotspots — score 71/100. This report aggregates EPA drinking water data across 2 local systems in Key West. We found 29 total violations (26 unresolved).
Real-Time Environment
Live: 08:15 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Key West.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Key West?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Wondering if Key West tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Key West tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Key West, water quality belongs on your due-diligence checklist alongside schools and crime data. With a score of 71/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Key West
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Key West.
Frequently Asked Questions
Is Key West tap water safe to drink?
Generally acceptable, but review local hotspots — score 71/100.
How many water systems serve Key West?
Key West is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Key West?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Key West.
What is the water quality score for Key West?
The water quality score for Key West is 71 out of 100, based on EPA contaminant data, violation history, and testing results across the 2 systems serving the city.
What are the top contaminants in Key West?
The top contaminants detected in Key West include Lead (90th percentile). View detailed information on our contaminants page.
Key West Water Quality Summary
Key West, FL receives a water quality score of 71/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Key West's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.
Key West's score of 71 is 7 points above the Florida state average of 64, and below the nationwide average of roughly 78/100 across all U.S. states.
Serving this mid-size Florida community, Key West’s single water system operates within a sensitive Southeast coastal environment characterized by a limestone aquifer. This unique geological setup, combined with a dense and expanding regional population, creates distinct vulnerabilities for the local water supply. While the current quality holds at a mediocre standard with noticeable room for improvement, prospective homebuyers and residents should remain aware of how these environmental and demographic pressures impact their lone utility.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Florida water quality rankings report →
Key Contaminants
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Water Systems Serving Key West (2)
Check Your Specific Address
Water quality can vary by neighborhood in Key West.
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