Jefferson Parish, Louisiana
35 ZIP codes · Avg score 98/100 · Grade A · Updated
ZipCheckup grade for Jefferson Parish: A.
No federal data flags a major home-safety concern for this ZIP.
Throughout Jefferson Parish, the 35 monitored ZIP codes show low violation rates and healthy safety scores - a pattern that puts the parish well above the state baseline for drinking water quality.
How Jefferson Parish Compares
How Jefferson Parish Compares
Jefferson Parish scores 6 points above the Louisiana state average (92/100) and 25 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Jefferson Parish, Louisiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.8 (asthma 9.8%, diabetes 16.2%)
Estimated additional annual cost per homeowner: $3,161, driven primarily by flood
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Jefferson Parish water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 18 violations. Past 5 years: 49 total (49 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.
Parish Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,161
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 Jefferson Parish
Remediation costs are relatively manageable for most homeowners in Jefferson Parish, 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 Jefferson Parish residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Jefferson Parish
7 community water systems serving Jefferson Parish.
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Show all 7 water systems
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Systems with the most violations in Jefferson Parish
5 water systems with recorded EPA violations.
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All ZIP Codes in Jefferson Parish
35 ZIP codes tracked in Jefferson Parish.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 70001 | Metairie | 100 | A | 0 | $313K |
| 2 | 70002 | Metairie | 100 | A | 0 | $379K |
| 3 | 70003 | Metairie | 100 | A | 0 | $255K |
| 4 | 70005 | Metairie | 100 | A | 0 | $381K |
| 5 | 70006 | Metairie | 100 | A | 0 | $333K |
| 6 | 70062 | Kenner | 100 | A | 0 | $198K |
| 7 | 70065 | Kenner | 100 | A | 0 | $256K |
| 8 | 70121 | New Orleans | 100 | A | 0 | $237K |
| 9 | 70123 | New Orleans | 100 | A | 0 | $318K |
| 10 | 70036 | Barataria | 99 | A | 1 (1 health) | $188K |
| 11 | 70067 | Lafitte | 99 | A | 1 (1 health) | $205K |
| 12 | 70358 | Grand Isle | 99 | A | 1 (1 health) | $266K |
| 13 | 70053 | Gretna | 97 | A | 6 (2 health) | $226K |
| 14 | 70094 | Westwego | 97 | A | 7 (2 health) | $155K |
| 15 | 70056 | Gretna | 95 | A | 9 (7 health) | $223K |
| 16 | 70058 | Harvey | 95 | A | 9 (7 health) | $195K |
| 17 | 70072 | Marrero | 93 | A | 14 (8 health) | $191K |
| 18 | 70004 | Metairie | — | — | — | |
| 19 | 70009 | Metairie | — | — | — | |
| 20 | 70010 | Metairie | — | — | — | |
| 21 | 70011 | Metairie | — | — | — | |
| 22 | 70033 | Metairie | — | — | — | |
| 23 | 70054 | Gretna | — | — | — | |
| 24 | 70055 | Metairie | — | — | — | |
| 25 | 70059 | Harvey | — | — | — | |
| 26 | 70060 | Metairie | — | — | — | |
| 27 | 70063 | Kenner | — | — | — | |
| 28 | 70064 | Kenner | — | — | — | |
| 29 | 70073 | Marrero | — | — | — | |
| 30 | 70096 | Westwego | — | — | — | |
| 31 | 70097 | Kenner | — | — | — | |
| 32 | 70158 | New Orleans | — | — | — | |
| 33 | 70183 | New Orleans | — | — | — | |
| 34 | 70302 | Thibodaux | — | — | — | |
| 35 | 71136 | Shreveport | — | — | — |
Recommended Buyer Guides for Jefferson Parish
Four sources - EPA, NSF, FEMA, CDC - drive the match.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Jefferson Parish, Louisiana
Overview
Jefferson Parish in Louisiana covers 35 tracked ZIP records with an average Home Safety Score of A (98/100) across 17 scored records.
8 of 17 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 9 health-based violations appear in the available health breakdown.
← Back to Louisiana Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.