Aransas County, Texas
7 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for Aransas: B.
This ZIP looks solid, with a few items worth a quick check.
Within Aransas County, all 7 tracked ZIP codes show above-average drinking water safety - violations are infrequent and typically minor.
How Aransas County Compares
How Aransas County Compares
Aransas County scores 10 points below the Texas state average (82/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Aransas County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 9.6%, diabetes 14.6%)
Estimated additional annual cost per homeowner: $3,854, driven primarily by sea_level
Infrastructure: 0.291% avg pipe failure probability, 14% of ZIPs at high risk
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Aransas County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 7 violations. Past 5 years: 17 total (17 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: $3,854
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 Aransas County
Remediation costs are relatively manageable for most homeowners in Aransas 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 Aransas County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Aransas County
8 community water systems serving Aransas County.
- C
- C
- B
- B
- B
- B
Show all 8 water systems
- C
- B
10 total water systems serve Aransas County.
Systems with the most violations in Aransas County
2 water systems with recorded EPA violations.
- B
- B
All ZIP Codes in Aransas County
7 ZIP codes tracked in Aransas County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78381 | Rockport | 88 | A | 4 (2 health) | — |
| 2 | 78390 | Taft | 81 | B | 15 (6 health) | $134K |
| 3 | 77411 | Alief | 73 | B | 0 | — |
| 4 | 78382 | Rockport | 73 | B | 4 (2 health) | $238K |
| 5 | 77315 | North Houston | 66 | C | 0 | — |
| 6 | 77545 | Fresno | 60 | C | 0 | $240K |
| 7 | 78358 | Fulton | 60 | C | 0 | — |
Recommended Buyer Guides for Aransas County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Aransas County, Texas
Overview
Aransas County in Texas covers 7 ZIP codes with an average Home Safety Score of B (72/100).
3 of 7 ZIP codes have recorded EPA violations. 10 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.