Thibodaux, LA Water Safety: 90/100 (2026)
3 ZIP codes · 5 water systems · Updated 2026-06-03
Residents of Thibodaux generally live with tap water that beats the LA safety average on key EPA compliance metrics.
How Thibodaux Compares
Data: EPA SDWIS Last verified: 2026-06-03
Thibodaux Water: The Quick Version
- Average lead level: 0.001 mg/L.
- Estimated remediation: $1,750 per household.
- CDC health risk index: 15.56 — above typical levels.
Water Systems Serving Thibodaux
Water delivery in Thibodaux, LA is handled by 3 utilities rather than a single system — drawn from 5 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 3 ZIP codes in Thibodaux, Louisiana (population ~49,203), covering 5 community water systems serving approximately 237,120 people region-wide.
No EPA violations recorded across any ZIP codes in Thibodaux — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Thibodaux: A (90/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Thibodaux water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 70301 | B | Thibodaux Waterworks | 14,862 |
| 70302 | A | Thibodaux Waterworks | 14,862 |
| 70310 | A | Thibodaux Waterworks | 14,862 |
All ZIP Codes in Thibodaux
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Thibodaux
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Thibodaux: Remediation Cost in Perspective
For most homeowners in Thibodaux, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth — placing this area in the lower tier of the remediation share scale.
Remediation costs in Thibodaux are relatively low compared to home values. The $1,150–$2,550 estimated range is a small fraction of median property value. Home values are 28% above the Louisiana average.
Protecting Children from Lead in Thibodaux
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Thibodaux appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Thibodaux
FEMA data places 67% of Thibodaux's ZIP codes inside designated flood zones, and the NFIP claim record confirms the real-world impact: 1242 filed claims representing decades of documented flood events with consequences for property and, at sufficient severity, for local water infrastructure.
Thibodaux has a significant flood history with 1,242 FEMA flood insurance claims on record, averaging $16,216 per claim. With 67% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,750</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Thibodaux, LA