Livingston County, Louisiana
9 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-04
Within Livingston County, all 9 tracked ZIP codes show above-average drinking water safety — violations are infrequent and typically minor.
How Livingston County Compares
How Livingston County Compares
Livingston County scores 1 points below the Louisiana state average (71/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Livingston County, Louisiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.1 (asthma 9.9%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $5,841, driven primarily by sea_level
Infrastructure: 0.254% avg pipe failure probability
30.8% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Livingston County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 14 total (14 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: $5,841
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
55,188 housing units in Livingston 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 Livingston County
Remediation costs are relatively manageable for most homeowners in Livingston 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 Livingston 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 Livingston County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Diversion Water - Terry Harbor Campsites | 969 | 25 |
| 2 | Carter Plantation | 472 | 22 |
| 3 | Jims Trailer Park | 160 | 22 |
| 4 | Springfield Mobile Home Park | 63 | 22 |
| 5 | Town of Livingston Water System | 8,658 | 6 |
18 total water systems serve Livingston County.
All ZIP Codes in Livingston County
9 ZIP codes tracked in Livingston County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 70727 | Denham Springs | 85 | A | 1 | — |
| 2 | 70754 | Livingston | 79 | B | 3 | $181K |
| 3 | 70706 | Denham Springs | 75 | B | 1 | $238K |
| 4 | 70726 | Denham Springs | 75 | B | 1 | $215K |
| 5 | 70785 | Walker | 74 | B | 1 (1 health) | $235K |
| 6 | 70711 | Albany | 73 | B | 2 (1 health) | $222K |
| 7 | 70449 | Maurepas | 66 | C | 3 (1 health) | $250K |
| 8 | 70462 | Springfield | 61 | C | 22 (5 health) | $238K |
| 9 | 70744 | Holden | 42 | D | 0 | $131K |
Recommended Buyer Guides for Livingston County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Livingston County, Louisiana
Overview
Livingston County in Louisiana covers 9 ZIP codes with an average Home Safety Score of B (70/100).
8 of 9 ZIP codes have recorded EPA violations. 8 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.