Collier County, Florida
28 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Water systems in Collier County serve 28 ZIP codes with few reported safety events.
How Collier County Compares
How Collier County Compares
Collier County scores 1 points below the Florida state average (73/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Collier County, Florida
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 8.6%, diabetes 13.7%)
Estimated additional annual cost per homeowner: $6,359, driven primarily by sea_level
Infrastructure: 0.235% avg pipe failure probability
33% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Collier County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 51 violations. Past 5 years: 54 total (54 health-based).
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: $6,359
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
243,630 housing units in Collier 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 Collier County
Remediation costs are relatively manageable for most homeowners in Collier 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 Collier 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 Collier County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Goodland Water Company | 853 | 738 |
| 2 | Collier County Regional Wtp | 215,350 | 722 |
| 3 | Naples Water Department | 82,000 | 714 |
| 4 | Ave Maria Utility Company, Lllp | 11,982 | 714 |
| 5 | Port of the Islands | 1,200 | 714 |
14 total water systems serve Collier County.
All ZIP Codes in Collier County
28 ZIP codes tracked in Collier County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 34143 | Immokalee | 95 | A | 9 | — |
| 2 | 34137 | Copeland | 94 | A | 2 | $160K |
| 3 | 34146 | Marco Island | 90 | A | 12 | — |
| 4 | 34142 | Immokalee | 86 | A | 9 | $296K |
| 5 | 34101 | Naples | 81 | B | 42 | — |
| 6 | 34106 | Naples | 81 | B | 42 | — |
| 7 | 34107 | Naples | 81 | B | 42 | — |
| 8 | 34139 | Everglades City | 79 | B | 2 | $359K |
| 9 | 34134 | Bonita Springs | 74 | B | 8 (1 health) | $660K |
| 10 | 33929 | Estero | 72 | B | 4 | — |
| 11 | 34105 | Naples | 71 | B | 42 | $516K |
| 12 | 34109 | Naples | 71 | B | 42 | $629K |
| 13 | 34116 | Naples | 71 | B | 42 | $393K |
| 14 | 34117 | Naples | 71 | B | 42 | $416K |
| 15 | 34119 | Naples | 71 | B | 42 | $665K |
| 16 | 34120 | Naples | 71 | B | 42 | $456K |
| 17 | 34141 | Ochopee | 69 | C | 6 (2 health) | — |
| 18 | 34104 | Naples | 66 | C | 42 | $349K |
| 19 | 34110 | Naples | 66 | C | 42 | $530K |
| 20 | 34113 | Naples | 66 | C | 42 | $451K |
| 21 | 34114 | Naples | 66 | C | 42 | $470K |
| 22 | 34145 | Marco Island | 66 | C | 12 | $866K |
| 23 | 34102 | Naples | 61 | C | 42 | $1422K |
| 24 | 34103 | Naples | 61 | C | 42 | $938K |
| 25 | 34108 | Naples | 61 | C | 42 | $972K |
| 26 | 34112 | Naples | 61 | C | 42 | $293K |
| 27 | 34138 | Chokoloskee | 60 | C | 0 | $220K |
| 28 | 34140 | Goodland | 55 | C | 0 | — |
Recommended Buyer Guides for Collier County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Collier County, Florida
Overview
Collier County in Florida covers 28 ZIP codes with an average Home Safety Score of B (72/100).
26 of 28 ZIP codes have recorded EPA violations. 3 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.