Corpus Christi, TX: 37 Health Violations — 90/100 (2026)
37 ZIP codes · 7 water systems · Updated 2026-06-03
Within Corpus Christi, safety indicators for tap water remain above the TX median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Corpus Christi Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Corpus Christi, TX
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Corpus Christi's 37 ZIP codes.
Key Facts for Corpus Christi Residents
- Your city's water systems recorded 37 violations in the past 5 years.
- Average lead level: 0.0017 mg/L.
- Estimated remediation: $1,670 per household.
- CDC health risk index: 13.13 — above typical levels.
Corpus Christi's Water Providers
Residential water service in Corpus Christi, TX is divided among 3 separate utilities, drawn from 7 systems on file with federal regulators.
Overview
We track water quality and home safety data for 37 ZIP codes in Corpus Christi, Texas, covering 7 community water systems serving approximately 318,904 people.
37 of 37 ZIP codes (100%) have recorded EPA violations. 37 health-based violations documented.
Home Safety Score
Average Home Safety Score for Corpus Christi: 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
Corpus Christi water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0017 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): 37 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Fecal Coliform | Microbiological | 38 | 37 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78401 | B | 1 | 1 | City of Corpus Christi |
| 78402 | B | 1 | 1 | City of Corpus Christi |
| 78403 | A | 1 | 1 | City of Corpus Christi |
| 78404 | B | 1 | 1 | City of Corpus Christi |
| 78405 | A | 1 | 1 | City of Corpus Christi |
| 78406 | A | 1 | 1 | City of Corpus Christi |
| 78407 | A | 1 | 1 | City of Corpus Christi |
| 78408 | B | 1 | 1 | City of Corpus Christi |
| 78409 | B | 1 | 1 | City of Corpus Christi |
| 78410 | B | 1 | 1 | City of Corpus Christi |
All ZIP Codes in Corpus Christi
- 78401 [B] — 1 violation ⚠
- 78402 [B] — 1 violation ⚠
- 78403 [A] — 1 violation ⚠
- 78404 [B] — 1 violation ⚠
- 78405 [A] — 1 violation ⚠
- 78406 [A] — 1 violation ⚠
- 78407 [A] — 1 violation ⚠
- 78408 [B] — 1 violation ⚠
- 78409 [B] — 1 violation ⚠
- 78410 [B] — 1 violation ⚠
- 78411 [B] — 1 violation ⚠
- 78412 [B] — 1 violation ⚠
- 78413 [B] — 1 violation ⚠
- 78414 [B] — 1 violation ⚠
- 78415 [B] — 1 violation ⚠
- 78416 [B] — 1 violation ⚠
- 78417 [B] — 1 violation ⚠
- 78418 [B] — 1 violation ⚠
- 78419 [A] — 1 violation ⚠
- 78426 [A] — 1 violation ⚠
- 78427 [A] — 1 violation ⚠
- 78460 [A] — 1 violation ⚠
- 78463 [A] — 1 violation ⚠
- 78465 [A] — 1 violation ⚠
- 78466 [A] — 1 violation ⚠
- 78467 [A] — 1 violation ⚠
- 78468 [A] — 1 violation ⚠
- 78469 [A] — 1 violation ⚠
- 78470 [A] — 1 violation ⚠
- 78471 [A] — 1 violation ⚠
- 78472 [A] — 1 violation ⚠
- 78473 [A] — 1 violation ⚠
- 78474 [A] — 1 violation ⚠
- 78475 [A] — 1 violation ⚠
- 78476 [A] — 1 violation ⚠
- 78477 [A] — 1 violation ⚠
- 78480 [A] — 1 violation ⚠
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.
Corpus Christi Community Health Snapshot
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
What's in Corpus Christi's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Corpus Christi
In Corpus Christi, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Corpus Christi are relatively low compared to home values. The $1,035–$2,681 estimated range is a small fraction of median property value. Home values are 22% below the Texas average.
Corpus Christi: Lead Risk & Vulnerable Populations
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 Corpus Christi 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.
Corpus Christi: Flood History & Water Damage Risk
Measured against the full NFIP dataset, Corpus Christi's flood record stands out: 4247 claims accumulated over decades and 73% of ZIP codes inside FEMA-designated boundaries add up to a high-exposure profile where water infrastructure has faced recurrent stress.
Corpus Christi has a significant flood history with 4,247 FEMA flood insurance claims on record, averaging $9,675 per claim. With 73% 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>$1,670</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 Corpus Christi, TX