Orleans County, Louisiana
58 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-04
Water utilities serving Orleans County's 58 ZIP codes have built a consistent compliance record — the county's above-average grade reflects years of data showing low violation rates and no systemic health concerns.
How Orleans County Compares
How Orleans County Compares
Orleans County scores 6 points above the Louisiana state average (71/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Orleans County, Louisiana
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 10.5%, diabetes 16.2%)
Estimated additional annual cost per homeowner: $4,634, driven primarily by sea_level
Infrastructure: 0.418% avg pipe failure probability, 19% of ZIPs at high risk
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Orleans County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 228 violations. Past 5 years: 517 total (517 health-based). Health-based violations are declining versus the prior 2-year window.
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: $4,634
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Orleans County
Remediation costs are relatively manageable for most homeowners in Orleans 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 Orleans 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 Orleans County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | New Orleans Carrollton Water Works | 334,903 | 1026 |
| 2 | New Orleans Algiers Water Works | 52,785 | 1026 |
| 3 | Lafayette Mhp Llc | 188 | 1026 |
| 4 | Giving Hope Retreat | 45 | 1026 |
| 5 | St Bernard Parish Waterworks | 44,783 | 18 |
7 total water systems serve Orleans County.
All ZIP Codes in Orleans County
58 ZIP codes tracked in Orleans County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 71028 | Gibsland | 88 | A | 13 (4 health) | $92K |
| 2 | 70142 | New Orleans | 85 | A | 18 (8 health) | — |
| 3 | 70145 | New Orleans | 85 | A | 18 (8 health) | — |
| 4 | 70154 | New Orleans | 85 | A | 18 (8 health) | — |
| 5 | 70156 | New Orleans | 85 | A | 18 (8 health) | — |
| 6 | 70159 | New Orleans | 85 | A | 18 (8 health) | — |
| 7 | 70162 | New Orleans | 85 | A | 18 (8 health) | — |
| 8 | 70164 | New Orleans | 85 | A | 18 (8 health) | — |
| 9 | 70165 | New Orleans | 85 | A | 18 (8 health) | — |
| 10 | 70166 | New Orleans | 85 | A | 18 (8 health) | — |
| 11 | 70167 | New Orleans | 85 | A | 18 (8 health) | — |
| 12 | 70172 | New Orleans | 85 | A | 18 (8 health) | — |
| 13 | 70187 | New Orleans | 85 | A | 18 (8 health) | — |
| 14 | 70195 | New Orleans | 85 | A | 18 (8 health) | — |
| 15 | 70141 | New Orleans | 84 | B | 18 (8 health) | — |
| 16 | 70146 | New Orleans | 84 | B | 18 (8 health) | — |
| 17 | 70150 | New Orleans | 84 | B | 18 (8 health) | — |
| 18 | 70151 | New Orleans | 84 | B | 18 (8 health) | — |
| 19 | 70152 | New Orleans | 84 | B | 18 (8 health) | — |
| 20 | 70160 | New Orleans | 84 | B | 18 (8 health) | — |
| 21 | 70170 | New Orleans | 84 | B | 18 (8 health) | — |
| 22 | 70175 | New Orleans | 84 | B | 18 (8 health) | — |
| 23 | 70176 | New Orleans | 84 | B | 18 (8 health) | — |
| 24 | 70177 | New Orleans | 84 | B | 18 (8 health) | — |
| 25 | 70178 | New Orleans | 84 | B | 18 (8 health) | — |
| 26 | 70179 | New Orleans | 84 | B | 18 (8 health) | — |
| 27 | 70181 | New Orleans | 84 | B | 18 (8 health) | — |
| 28 | 70182 | New Orleans | 84 | B | 18 (8 health) | — |
| 29 | 70184 | New Orleans | 84 | B | 18 (8 health) | — |
| 30 | 70186 | New Orleans | 84 | B | 18 (8 health) | — |
| 31 | 70189 | New Orleans | 84 | B | 18 (8 health) | — |
| 32 | 70190 | New Orleans | 84 | B | 18 (8 health) | — |
| 33 | 70148 | New Orleans | 79 | B | 18 (8 health) | — |
| 34 | 70153 | New Orleans | 79 | B | 18 (8 health) | — |
| 35 | 70157 | New Orleans | 79 | B | 18 (8 health) | — |
| 36 | 70161 | New Orleans | 79 | B | 18 (8 health) | — |
| 37 | 70163 | New Orleans | 79 | B | 18 (8 health) | — |
| 38 | 70174 | New Orleans | 79 | B | 18 (8 health) | — |
| 39 | 70185 | New Orleans | 79 | B | 18 (8 health) | — |
| 40 | 70139 | New Orleans | 74 | B | 18 (8 health) | — |
| 41 | 70140 | New Orleans | 74 | B | 18 (8 health) | — |
| 42 | 70112 | New Orleans | 64 | C | 18 (8 health) | $398K |
| 43 | 70113 | New Orleans | 64 | C | 18 (8 health) | $259K |
| 44 | 70114 | New Orleans | 64 | C | 18 (8 health) | $194K |
| 45 | 70115 | New Orleans | 64 | C | 18 (8 health) | $617K |
| 46 | 70116 | New Orleans | 64 | C | 18 (8 health) | $385K |
| 47 | 70117 | New Orleans | 64 | C | 18 (8 health) | $248K |
| 48 | 70118 | New Orleans | 64 | C | 18 (8 health) | $452K |
| 49 | 70119 | New Orleans | 64 | C | 18 (8 health) | $359K |
| 50 | 70122 | New Orleans | 64 | C | 18 (8 health) | $275K |
| 51 | 70124 | New Orleans | 64 | C | 18 (8 health) | $578K |
| 52 | 70125 | New Orleans | 64 | C | 18 (8 health) | $429K |
| 53 | 70126 | New Orleans | 64 | C | 18 (8 health) | $187K |
| 54 | 70127 | New Orleans | 64 | C | 18 (8 health) | $191K |
| 55 | 70128 | New Orleans | 64 | C | 18 (8 health) | $220K |
| 56 | 70129 | New Orleans | 64 | C | 18 (8 health) | $171K |
| 57 | 70130 | New Orleans | 64 | C | 18 (8 health) | $529K |
| 58 | 70131 | New Orleans | 64 | C | 18 (8 health) | $236K |
Recommended Buyer Guides for Orleans County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Orleans County, Louisiana
Overview
Orleans County in Louisiana covers 58 ZIP codes with an average Home Safety Score of B (77/100).
58 of 58 ZIP codes have recorded EPA violations. 460 health-based violations have been documented.
← Back to Louisiana 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.