Key West, FL: 33 Violations — 74/100 (2026)
3 ZIP codes · 1 water system · Updated 2026-06-03
The water systems supplying Key West show a track record of above-average compliance with federal standards — consistently among the better performers in FL.
How Key West Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Key West Water
- Your city's water systems recorded 33 violations in the past 5 years.
- Average lead level: 0.004 mg/L.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 12.76 — above typical levels.
Who Supplies Your Water in Key West
With one provider handling most of Key West's residential supply in FL, water service accountability is concentrated in a single utility among the 1 system on record.
Overview
We track water quality and home safety data for 3 ZIP codes in Key West, Florida (population ~36,091), covering 1 community water system serving approximately 86,000 people region-wide.
3 of 3 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Key West: B (74/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Key West water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0040 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 28 | 3 |
| Lead | Inorganic | 4 | 3 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 3 |
| Stage 1 DBP Rule | Treatment Technique | 4 | 3 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 33040 | C | 11 | 0 | Fkaa J. Robert Dean W.t.p. |
| 33041 | B | 11 | 0 | Fkaa J. Robert Dean W.t.p. |
| 33045 | B | 11 | 0 | Fkaa J. Robert Dean W.t.p. |
All ZIP Codes in Key West
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Key West
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Key West Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Key West Homeowners
In Key West, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Key West are relatively low compared to home values. The $1,333–$3,633 estimated range is a small fraction of median property value. Home values are 127% above the Florida average.
Lead Exposure Risk for Children in Key West
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Key West appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Key West
A claim count of 8247 in the NFIP database — alongside 100% of ZIP codes in FEMA-designated flood zones — points to something data alone can only partly convey: a community that has repeatedly dealt with the full consequences of significant flooding. Treatment plants overwhelmed by floodwater, private wells compromised by surface infiltration, and distribution systems stressed by pressure events are all downstream effects of the flood history Key West's NFIP record documents.
Key West has a significant flood history with 8,247 FEMA flood insurance claims on record, averaging $12,209 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,400</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Key West, FL