Texas — 28th District
119th Congress · 60 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 60 ZIP codes in Texas's 28th District: the district earns a grade B (78/100). 863 EPA violations on record, 325 health-based.
Top Contaminants
ZIP Codes in This District
60 ZIP codes tracked in Texas's 28th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 78203 | San Antonio | 98 | A | 2 (1 health) |
| 2 | 78235 | San Antonio | 98 | A | 2 (1 health) |
| 3 | 78101 | Adkins | 95 | A | 0 |
| 4 | 78148 | Universal City | 95 | A | 0 |
| 5 | 78011 | Charlotte | 94 | A | 5 |
| 6 | 78065 | Poteet | 94 | A | 12 (1 health) |
| 7 | 78222 | San Antonio | 94 | A | 2 (1 health) |
| 8 | 78263 | San Antonio | 94 | A | 2 (1 health) |
| 9 | 78264 | San Antonio | 94 | A | 2 (1 health) |
| 10 | 78052 | Lytle | 93 | A | 16 (2 health) |
| 11 | 78026 | Jourdanton | 91 | A | 25 (1 health) |
| 12 | 78112 | Elmendorf | 91 | A | 162 (1 health) |
| 13 | 78547 | Garciasville | 91 | A | 3 (1 health) |
| 14 | 78064 | Pleasanton | 90 | A | 1 |
| 15 | 78109 | Converse | 90 | A | 0 |
| 16 | 78210 | San Antonio | 89 | A | 2 (1 health) |
| 17 | 78214 | San Antonio | 89 | A | 2 (1 health) |
| 18 | 78219 | San Antonio | 89 | A | 2 (1 health) |
| 19 | 78220 | San Antonio | 89 | A | 2 (1 health) |
| 20 | 78223 | San Antonio | 89 | A | 2 (1 health) |
| 21 | 78582 | Rio Grande City | 89 | A | 12 (1 health) |
| 22 | 78124 | Marion | 87 | A | 6 |
| 23 | 78072 | Tilden | 86 | A | 29 (3 health) |
| 24 | 78108 | Cibolo | 85 | A | 0 |
| 25 | 78371 | Oilton | 83 | B | 25 (1 health) |
| 26 | 78545 | Falcon Heights | 83 | B | 16 (1 health) |
| 27 | 78384 | San Diego | 81 | B | 17 (5 health) |
| 28 | 78584 | Roma | 79 | B | 52 (11 health) |
| 29 | 78012 | Christine | 73 | B | 16 |
| 30 | 78050 | Leming | 73 | B | 0 |
| 31 | 78062 | Peggy | 73 | B | 0 |
| 32 | 78152 | Saint Hedwig | 73 | B | 0 |
| 33 | 78376 | Realitos | 73 | B | 0 |
| 34 | 78548 | Grulla | 73 | B | 0 |
| 35 | 78564 | Lopeno | 73 | B | 0 |
| 36 | 78588 | San Isidro | 73 | B | 0 |
| 37 | 78154 | Schertz | 72 | B | 4 |
| 38 | 78076 | Zapata | 71 | B | 52 (15 health) |
| 39 | 78042 | Laredo | 70 | B | 34 (24 health) |
| 40 | 78044 | Laredo | 70 | B | 34 (24 health) |
| 41 | 78046 | Laredo | 70 | B | 34 (24 health) |
| 42 | 78341 | Benavides | 70 | B | 52 (37 health) |
| 43 | 78369 | Mirando City | 70 | B | 14 (8 health) |
| 44 | 78007 | Calliham | 66 | C | 0 |
| 45 | 78008 | Campbellton | 66 | C | 0 |
| 46 | 78049 | Laredo | 66 | C | 34 (24 health) |
| 47 | 78067 | San Ygnacio | 66 | C | 0 |
| 48 | 78349 | Concepcion | 66 | C | 0 |
| 49 | 78360 | Guerra | 66 | C | 0 |
| 50 | 78536 | Delmita | 66 | C | 0 |
Overview
Texas's 28th District encompasses 60 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (78/100).
863 EPA violations have been recorded across this district's water systems. 325 are health-based violations. About 67% 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 - 187 violations
- Haloacetic Acids (HAA5) - 127 violations
- Consumer Confidence Report Rule - 93 violations
- Barium - 84 violations
- Stage 1 DBP Rule - 78 violations
Housing Context
Homes in this district were built on average around 1984 (~42 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 60 ZIP codes in Texas's 28th District.