Webb County, Texas
11 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-07-19
ZipCheckup grade for Webb: C.
A mixed picture - some signals here are worth your attention.
Although much of Webb County meets baseline standards, some of its 11 ZIP codes show violations that merit closer attention.
How Webb County Compares
How Webb County Compares
Webb County scores 15 points below the Texas state average (82/100) and 1 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Webb County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 8.7%, diabetes 16.1%)
Estimated additional annual cost per homeowner: $1,688, driven primarily by sea_level
Infrastructure: 0.448% avg pipe failure probability, 55% of ZIPs at high risk
44.8% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Webb County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 75 violations. Past 5 years: 145 total (145 health-based). Health-based violations are rising versus the prior 2-year window - worth closer monitoring.
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: $1,688
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
85,104 housing units in Webb 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 Webb County
Remediation costs are relatively manageable for most homeowners in Webb 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 Webb County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Webb County
7 community water systems serving Webb County.
- B
- C
- C
- B
- B
- C
Show all 7 water systems
- C
Systems with the most violations in Webb County
2 water systems with recorded EPA violations.
- B
- B
All ZIP Codes in Webb County
11 ZIP codes tracked in Webb County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78371 | Oilton | 83 | B | 25 (1 health) | — |
| 2 | 78042 | Laredo | 70 | B | 34 (24 health) | — |
| 3 | 78044 | Laredo | 70 | B | 34 (24 health) | $221K |
| 4 | 78046 | Laredo | 70 | B | 34 (24 health) | $142K |
| 5 | 78369 | Mirando City | 70 | B | 14 (8 health) | — |
| 6 | 78049 | Laredo | 66 | C | 34 (24 health) | — |
| 7 | 78040 | Laredo | 65 | C | 34 (24 health) | $117K |
| 8 | 78043 | Laredo | 65 | C | 34 (24 health) | $151K |
| 9 | 78041 | Laredo | 60 | C | 34 (24 health) | $217K |
| 10 | 78045 | Laredo | 60 | C | 34 (24 health) | $227K |
| 11 | 78344 | Bruni | 55 | C | 21 (13 health) | $88K |
Recommended Buyer Guides for Webb County
Filtered against federal data, fitted to local risks.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Webb County, Texas
Overview
Webb County in Texas covers 11 ZIP codes with an average Home Safety Score of C (67/100).
11 of 11 ZIP codes have recorded EPA violations. 214 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.