Texas — 34th District
119th Congress · 42 ZIP codes · Avg score 76/100 · Grade B · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 42 ZIP codes in Texas's 34th District: the district earns a grade B (76/100). 296 EPA violations on record, 63 health-based.
Top Contaminants
ZIP Codes in This District
42 ZIP codes tracked in Texas's 34th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 78385 | Sarita | 98 | A | 10 (1 health) |
| 2 | 78364 | Kingsville | 92 | A | 5 (3 health) |
| 3 | 78522 | Brownsville | 92 | A | 4 |
| 4 | 78523 | Brownsville | 92 | A | 4 |
| 5 | 78553 | Harlingen | 91 | A | 15 (1 health) |
| 6 | 78543 | Elsa | 89 | A | 2 |
| 7 | 78575 | Olmito | 89 | A | 1 (1 health) |
| 8 | 78551 | Harlingen | 86 | A | 15 (1 health) |
| 9 | 78589 | San Juan | 85 | A | 0 |
| 10 | 78516 | Alamo | 83 | B | 4 |
| 11 | 78537 | Donna | 83 | B | 1 |
| 12 | 78526 | Brownsville | 82 | B | 4 |
| 13 | 78579 | Progreso | 82 | B | 6 (5 health) |
| 14 | 78562 | La Villa | 80 | B | 2 |
| 15 | 78578 | Port Isabel | 80 | B | 0 |
| 16 | 78586 | San Benito | 80 | B | 0 |
| 17 | 78535 | Combes | 79 | B | 10 (3 health) |
| 18 | 78559 | La Feria | 79 | B | 6 (1 health) |
| 19 | 78594 | Sebastian | 78 | B | 6 (1 health) |
| 20 | 78363 | Kingsville | 77 | B | 5 (3 health) |
| 21 | 78520 | Brownsville | 77 | B | 4 |
| 22 | 78521 | Brownsville | 77 | B | 4 |
| 23 | 78596 | Weslaco | 76 | B | 6 (1 health) |
| 24 | 78599 | Weslaco | 76 | B | 6 (1 health) |
| 25 | 78569 | Lyford | 75 | B | 5 |
| 26 | 78338 | Armstrong | 73 | B | 0 |
| 27 | 78568 | Lozano | 73 | B | 0 |
| 28 | 78593 | Santa Rosa | 73 | B | 12 (3 health) |
| 29 | 78550 | Harlingen | 71 | B | 15 (1 health) |
| 30 | 78552 | Harlingen | 71 | B | 15 (1 health) |
| 31 | 78583 | Rio Hondo | 70 | B | 32 (12 health) |
| 32 | 78566 | Los Fresnos | 69 | C | 8 (4 health) |
| 33 | 78561 | Lasara | 66 | C | 0 |
| 34 | 78567 | Los Indios | 66 | C | 0 |
| 35 | 78580 | Raymondville | 66 | C | 17 (5 health) |
| 36 | 78592 | Santa Maria | 66 | C | 0 |
| 37 | 78558 | La Blanca | 65 | C | 0 |
| 38 | 78590 | San Perlita | 65 | C | 0 |
| 39 | 78570 | Mercedes | 60 | C | 55 (5 health) |
| 40 | 78598 | Port Mansfield | 60 | C | 0 |
| 41 | 78379 | Riviera | 57 | C | 17 (10 health) |
| 42 | 78597 | South Padre Island | 50 | D | 0 |
Overview
Texas's 34th District encompasses 42 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (76/100).
296 EPA violations have been recorded across this district's water systems. 63 are health-based violations. About 71% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Lead and Copper Rule - 72 violations
- Stage 1 DBP Rule - 51 violations
- Surface Water Treatment Rule - 30 violations
- Consumer Confidence Report Rule - 28 violations
- Stage 2 DBP Rule - 24 violations
Housing Context
Homes in this district were built on average around 1988 (~38 years old). Most homes were built after lead pipe regulations were tightened.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 42 ZIP codes in Texas's 34th District.