Nueces County, Texas
45 ZIP codes · Avg score 88/100 · Grade A · Updated 2026-06-03
For households in Nueces County, the 45 ZIP codes on record show consistently safe tap water.
How Nueces County Compares
How Nueces County Compares
Nueces County scores 6 points above the Texas state average (82/100) and 20 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Nueces County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.1 (asthma 9.3%, diabetes 15.8%)
Estimated additional annual cost per homeowner: $4,945, driven primarily by sea_level
Infrastructure: 0.304% avg pipe failure probability, 9% of ZIPs at high risk
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Nueces County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 46 violations. Past 5 years: 76 total (76 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: $4,945
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 Nueces County
Remediation costs are relatively manageable for most homeowners in Nueces 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 Nueces 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 Nueces County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | CITY OF CORPUS CHRISTI | 318,387 | 54 |
| 2 | Corpus Christi Naval Air Station | 7,048 | 37 |
| 3 | Nueces Water Supply Corporation | 3,165 | 31 |
| 4 | Nueces County Wcid 5 | 912 | 17 |
| 5 | Violet Water Supply Corporation | 2,670 | 17 |
13 total water systems serve Nueces County.
All ZIP Codes in Nueces County
45 ZIP codes tracked in Nueces County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78419 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 2 | 78426 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 3 | 78427 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 4 | 78465 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 5 | 78470 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 6 | 78471 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 7 | 78472 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 8 | 78475 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 9 | 78476 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 10 | 78477 | Corpus Christi | 98 | A | 1 (1 health) | — |
| 11 | 78460 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 12 | 78463 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 13 | 78466 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 14 | 78467 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 15 | 78468 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 16 | 78474 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 17 | 78480 | Corpus Christi | 94 | A | 1 (1 health) | — |
| 18 | 78330 | Agua Dulce | 90 | A | 1 | $87K |
| 19 | 78343 | Bishop | 90 | A | 0 | $109K |
| 20 | 78403 | Corpus Christi | 89 | A | 1 (1 health) | — |
| 21 | 78405 | Corpus Christi | 89 | A | 1 (1 health) | $75K |
| 22 | 78406 | Corpus Christi | 89 | A | 1 (1 health) | — |
| 23 | 78407 | Corpus Christi | 89 | A | 1 (1 health) | $131K |
| 24 | 78469 | Corpus Christi | 89 | A | 1 (1 health) | — |
| 25 | 78473 | Corpus Christi | 89 | A | 1 (1 health) | — |
| 26 | 78335 | Aransas Pass | 86 | A | 3 (1 health) | — |
| 27 | 78401 | Corpus Christi | 84 | B | 1 (1 health) | $76K |
| 28 | 78404 | Corpus Christi | 84 | B | 1 (1 health) | $181K |
| 29 | 78408 | Corpus Christi | 84 | B | 1 (1 health) | $82K |
| 30 | 78409 | Corpus Christi | 84 | B | 1 (1 health) | $133K |
| 31 | 78414 | Corpus Christi | 84 | B | 1 (1 health) | $271K |
| 32 | 78415 | Corpus Christi | 84 | B | 1 (1 health) | $136K |
| 33 | 78416 | Corpus Christi | 84 | B | 1 (1 health) | $93K |
| 34 | 78417 | Corpus Christi | 84 | B | 1 (1 health) | $133K |
| 35 | 78339 | Banquete | 81 | B | 17 (1 health) | $71K |
| 36 | 78402 | Corpus Christi | 79 | B | 1 (1 health) | $196K |
| 37 | 78410 | Corpus Christi | 79 | B | 1 (1 health) | $220K |
| 38 | 78411 | Corpus Christi | 79 | B | 1 (1 health) | $179K |
| 39 | 78412 | Corpus Christi | 79 | B | 1 (1 health) | $189K |
| 40 | 78413 | Corpus Christi | 79 | B | 1 (1 health) | $231K |
| 41 | 78351 | Driscoll | 78 | B | 13 (1 health) | $99K |
| 42 | 78418 | Corpus Christi | 74 | B | 1 (1 health) | $275K |
| 43 | 78347 | Chapman Ranch | 73 | B | 0 | — |
| 44 | 78380 | Robstown | 70 | B | 13 (7 health) | $142K |
| 45 | 78373 | Port Aransas | 68 | C | 4 (4 health) | $519K |
Recommended Buyer Guides for Nueces County
Editorial-only picks, screened against the EPA detections on file.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Nueces County, Texas
Overview
Nueces County in Texas covers 45 ZIP codes with an average Home Safety Score of A (88/100).
43 of 45 ZIP codes have recorded EPA violations. 51 health-based violations have been documented.
← Back to Texas 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.