Hidalgo County, Texas
31 ZIP codes · Avg score 76/100 · Grade B · Updated
ZipCheckup grade for Hidalgo County: B.
This ZIP looks solid, with a few items worth a quick check.
Although county size varies, Hidalgo County's 31 ZIP codes share reliably safe tap water records and above-average compliance scores.
How Hidalgo County Compares
How Hidalgo County Compares
Hidalgo County scores 7 points below the Texas state average (83/100) and 3 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Hidalgo County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 8.7%, diabetes 17.4%)
Estimated additional annual cost per homeowner: $3,679, driven primarily by flood
30.7% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Hidalgo County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 39 violations. Past 5 years: 117 total (117 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,679
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
296,261 housing units in Hidalgo 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 Hidalgo County
Remediation costs are relatively manageable for most homeowners in Hidalgo 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 Hidalgo County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Hidalgo County
8 community water systems serving Hidalgo County.
- C
- C
- B
- B
- C
- B
Show all 8 water systems
- B
- C
22 total water systems serve Hidalgo County.
Systems with the most violations in Hidalgo County
5 water systems with recorded EPA violations.
- B
- B
- B
- C
- C
All ZIP Codes in Hidalgo County
31 ZIP codes tracked in Hidalgo County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78501 | Mcallen | 91 | A | 1 | $149K |
| 2 | 78565 | Los Ebanos | 90 | A | 2 (1 health) | — |
| 3 | 78543 | Elsa | 89 | A | 7 (2 health) | $86K |
| 4 | 78549 | Hargill | 89 | A | 5 (2 health) | $63K |
| 5 | 78542 | Edinburg | 87 | A | 11 (4 health) | $124K |
| 6 | 78538 | Edcouch | 86 | A | 13 (4 health) | $87K |
| 7 | 78579 | Progreso | 85 | A | 5 (1 health) | — |
| 8 | 78577 | Pharr | 83 | B | 14 (3 health) | $112K |
| 9 | 78516 | Alamo | 81 | B | 15 (3 health) | $103K |
| 10 | 78503 | Mcallen | 80 | B | 26 (1 health) | $130K |
| 11 | 78557 | Hidalgo | 80 | B | 25 (1 health) | $156K |
| 12 | 78504 | Mcallen | 75 | B | 1 | $204K |
| 13 | 78560 | La Joya | 75 | B | 51 (9 health) | $114K |
| 14 | 78570 | Mercedes | 75 | B | 67 (8 health) | $83K |
| 15 | 78576 | Penitas | 75 | B | 59 (9 health) | $117K |
| 16 | 78595 | Sullivan City | 75 | B | 52 (14 health) | $86K |
| 17 | 78563 | Linn | 72 | B | 6 (2 health) | — |
| 18 | 78589 | San Juan | 71 | B | 10 (2 health) | $112K |
| 19 | 78539 | Edinburg | 70 | B | 12 (4 health) | $198K |
| 20 | 78541 | Edinburg | 68 | C | 13 (5 health) | $143K |
| 21 | 78573 | Mission | 67 | C | 19 (1 health) | $155K |
| 22 | 78537 | Donna | 63 | C | 30 (2 health) | $75K |
| 23 | 78572 | Mission | 58 | C | 85 (10 health) | $122K |
| 24 | 78574 | Mission | 58 | C | 67 (9 health) | $119K |
| 25 | 78596 | Weslaco | 58 | C | 69 (8 health) | $93K |
| 26 | 78502 | Mcallen | — | — | — | |
| 27 | 78505 | Mcallen | — | — | — | |
| 28 | 78540 | Edinburg | — | — | — | |
| 29 | 78558 | La Blanca | — | — | 5 (2 health) | $55K |
| 30 | 78562 | La Villa | — | — | 5 (2 health) | $118K |
| 31 | 78599 | Weslaco | — | — | 14 (3 health) | $113K |
Recommended Buyer Guides for Hidalgo County
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Water Filters for Lead — Lead above EPA action level in 2 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Hidalgo County, Texas
Overview
Hidalgo County in Texas covers 31 tracked ZIP records with an average Home Safety Score of B (76/100) across 25 scored records.
28 of 28 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 33 health-based violations appear in the available health breakdown.
← Back to Texas Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.