Texas — 28th District
119th Congress · 35 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
35 ZIP codes tracked in Texas's 28th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 78156 | Seguin | 92 | A | 10 (3 health) |
| 2 | 78547 | Garciasville | 91 | A | 3 (1 health) |
| 3 | 78616 | Dale | 91 | A | 9 (1 health) |
| 4 | 78582 | Rio Grande City | 89 | A | 17 (1 health) |
| 5 | 78072 | Tilden | 86 | A | 97 (3 health) |
| 6 | 78108 | Cibolo | 85 | A | 0 |
| 7 | 78124 | Marion | 83 | B | 14 |
| 8 | 78371 | Oilton | 83 | B | 41 (1 health) |
| 9 | 78545 | Falcon Heights | 83 | B | 26 (1 health) |
| 10 | 78376 | Realitos | 73 | B | 0 |
| 11 | 78548 | Grulla | 73 | B | 0 |
| 12 | 78564 | Lopeno | 73 | B | 0 |
| 13 | 78155 | Seguin | 72 | B | 10 (3 health) |
| 14 | 78154 | Schertz | 71 | B | 6 |
| 15 | 78042 | Laredo | 70 | B | 88 (71 health) |
| 16 | 78044 | Laredo | 70 | B | 88 (71 health) |
| 17 | 78046 | Laredo | 70 | B | 88 (71 health) |
| 18 | 78076 | Zapata | 70 | B | 251 (55 health) |
| 19 | 78341 | Benavides | 70 | B | 147 (125 health) |
| 20 | 78369 | Mirando City | 70 | B | 30 (21 health) |
| 21 | 78384 | San Diego | 70 | B | 46 (24 health) |
| 22 | 78049 | Laredo | 66 | C | 88 (71 health) |
| 23 | 78067 | San Ygnacio | 66 | C | 0 |
| 24 | 78115 | Geronimo | 66 | C | 0 |
| 25 | 78360 | Guerra | 66 | C | 0 |
| 26 | 78585 | Salineno | 66 | C | 0 |
| 27 | 78040 | Laredo | 65 | C | 88 (71 health) |
| 28 | 78043 | Laredo | 65 | C | 88 (71 health) |
| 29 | 78361 | Hebbronville | 65 | C | 51 (43 health) |
| 30 | 78584 | Roma | 65 | C | 182 (39 health) |
| 31 | 78357 | Freer | 62 | C | 52 (43 health) |
| 32 | 78041 | Laredo | 60 | C | 88 (71 health) |
| 33 | 78045 | Laredo | 60 | C | 88 (71 health) |
| 34 | 78123 | Mc Queeney | 55 | C | 0 |
| 35 | 78344 | Bruni | 55 | C | 53 (36 health) |
Overview
Texas's 28th District serving an estimated 2,622,643 residents encompasses 35 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (72/100).
1749 EPA violations have been recorded across this district's water systems. 968 are health-based violations. About 74% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Haloacetic Acids (HAA5) — 462 violations
- Barium — 300 violations
- Fecal Coliform — 250 violations
- Lead and Copper Rule — 174 violations
- Total Trihalomethanes (TTHM) — 147 violations
Housing Context
Homes in this district were built on average around 1985 (~41 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
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 35 ZIP codes in Texas's 28th District.