St. Lucie County, Florida
21 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-03
St. Lucie County's tap water quality puts it in the upper tier nationally; the 21 ZIP codes here record few health-based violations.
How St. Lucie County Compares
How St. Lucie County Compares
St. Lucie County scores 4 points above the Florida state average (73/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: St. Lucie County, Florida
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.9 (asthma 9.9%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $5,105, driven primarily by sea_level
Infrastructure: 0.299% avg pipe failure probability, 10% of ZIPs at high risk
41.9% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across St. Lucie County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 44 violations. Past 5 years: 54 total (54 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $5,105
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
159,196 housing units in St. Lucie County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in St. Lucie County
Remediation costs are relatively manageable for most homeowners in St. Lucie County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for St. Lucie County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in St. Lucie County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Spanish Lakes Fairways | 3,120 | 2264 |
| 2 | Spanish Lakes Country Club Village | 2,331 | 2264 |
| 3 | Ft. Pierce Utilities Authority | 58,000 | 1955 |
| 4 | St Lucie County Util North County System | 5,073 | 1672 |
| 5 | Indian River Estates | 2,365 | 1672 |
16 total water systems serve St. Lucie County.
All ZIP Codes in St. Lucie County
21 ZIP codes tracked in St. Lucie County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 34985 | Port Saint Lucie | 89 | A | 74 (2 health) | — |
| 2 | 34988 | Port Saint Lucie | 89 | A | 74 (2 health) | — |
| 3 | 33448 | Delray Beach | 85 | A | 27 (4 health) | — |
| 4 | 34948 | Fort Pierce | 84 | B | 152 (3 health) | — |
| 5 | 34979 | Fort Pierce | 84 | B | 152 (3 health) | — |
| 6 | 34954 | Fort Pierce | 83 | B | 152 (3 health) | — |
| 7 | 34984 | Port Saint Lucie | 82 | B | 74 (2 health) | $325K |
| 8 | 34987 | Port Saint Lucie | 82 | B | 74 (2 health) | $430K |
| 9 | 34945 | Fort Pierce | 78 | B | 152 (3 health) | $286K |
| 10 | 34953 | Port Saint Lucie | 77 | B | 74 (2 health) | $327K |
| 11 | 34983 | Port Saint Lucie | 77 | B | 74 (2 health) | $294K |
| 12 | 34986 | Port Saint Lucie | 77 | B | 74 (2 health) | $368K |
| 13 | 34946 | Fort Pierce | 73 | B | 152 (3 health) | $128K |
| 14 | 34947 | Fort Pierce | 73 | B | 152 (3 health) | $203K |
| 15 | 34950 | Fort Pierce | 73 | B | 152 (3 health) | $176K |
| 16 | 34951 | Fort Pierce | 73 | B | 152 (3 health) | $230K |
| 17 | 34952 | Port Saint Lucie | 72 | B | 74 (2 health) | $242K |
| 18 | 34981 | Fort Pierce | 68 | C | 152 (3 health) | $369K |
| 19 | 34982 | Fort Pierce | 68 | C | 152 (3 health) | $228K |
| 20 | 34957 | Jensen Beach | 67 | C | 61 (2 health) | $379K |
| 21 | 34949 | Fort Pierce | 63 | C | 152 (3 health) | $428K |
Recommended Buyer Guides for St. Lucie County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for St. Lucie County, Florida
Overview
St. Lucie County in Florida covers 21 ZIP codes with an average Home Safety Score of B (77/100).
21 of 21 ZIP codes have recorded EPA violations. 55 health-based violations have been documented.
← Back to Florida water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.