Texas — 18th District
119th Congress · 111 ZIP codes · Avg score 92/100 · Grade A · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 111 ZIP codes in Texas's 18th District: the district earns a grade A (92/100). 111 EPA violations on record, 108 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Texas's 18th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 77097 | Houston | 98 | A | 1 (1 health) |
| 2 | 77201 | Houston | 98 | A | 1 (1 health) |
| 3 | 77202 | Houston | 98 | A | 1 (1 health) |
| 4 | 77203 | Houston | 98 | A | 1 (1 health) |
| 5 | 77204 | Houston | 98 | A | 1 (1 health) |
| 6 | 77209 | Houston | 98 | A | 1 (1 health) |
| 7 | 77212 | Houston | 98 | A | 1 (1 health) |
| 8 | 77215 | Houston | 98 | A | 1 (1 health) |
| 9 | 77216 | Houston | 98 | A | 1 (1 health) |
| 10 | 77217 | Houston | 98 | A | 1 (1 health) |
| 11 | 77218 | Houston | 98 | A | 1 (1 health) |
| 12 | 77219 | Houston | 98 | A | 1 (1 health) |
| 13 | 77222 | Houston | 98 | A | 1 (1 health) |
| 14 | 77223 | Houston | 98 | A | 1 (1 health) |
| 15 | 77226 | Houston | 98 | A | 1 (1 health) |
| 16 | 77230 | Houston | 98 | A | 1 (1 health) |
| 17 | 77231 | Houston | 98 | A | 1 (1 health) |
| 18 | 77241 | Houston | 98 | A | 1 (1 health) |
| 19 | 77243 | Houston | 98 | A | 1 (1 health) |
| 20 | 77248 | Houston | 98 | A | 1 (1 health) |
| 21 | 77249 | Houston | 98 | A | 1 (1 health) |
| 22 | 77254 | Houston | 98 | A | 1 (1 health) |
| 23 | 77259 | Houston | 98 | A | 1 (1 health) |
| 24 | 77263 | Houston | 98 | A | 1 (1 health) |
| 25 | 77268 | Houston | 98 | A | 1 (1 health) |
| 26 | 77269 | Houston | 98 | A | 1 (1 health) |
| 27 | 77271 | Houston | 98 | A | 1 (1 health) |
| 28 | 77273 | Houston | 98 | A | 1 (1 health) |
| 29 | 77274 | Houston | 98 | A | 1 (1 health) |
| 30 | 77275 | Houston | 98 | A | 1 (1 health) |
| 31 | 77276 | Houston | 98 | A | 1 (1 health) |
| 32 | 77277 | Houston | 98 | A | 1 (1 health) |
| 33 | 77280 | Houston | 98 | A | 1 (1 health) |
| 34 | 77282 | Houston | 98 | A | 1 (1 health) |
| 35 | 77284 | Houston | 98 | A | 1 (1 health) |
| 36 | 77285 | Houston | 98 | A | 1 (1 health) |
| 37 | 77288 | Houston | 98 | A | 1 (1 health) |
| 38 | 77289 | Houston | 98 | A | 1 (1 health) |
| 39 | 77290 | Houston | 98 | A | 1 (1 health) |
| 40 | 77291 | Houston | 98 | A | 1 (1 health) |
| 41 | 77293 | Houston | 98 | A | 1 (1 health) |
| 42 | 77294 | Houston | 98 | A | 1 (1 health) |
| 43 | 77296 | Houston | 98 | A | 1 (1 health) |
| 44 | 77297 | Houston | 98 | A | 1 (1 health) |
| 45 | 77298 | Houston | 98 | A | 1 (1 health) |
| 46 | 77299 | Houston | 98 | A | 1 (1 health) |
| 47 | 77010 | Houston | 94 | A | 1 (1 health) |
| 48 | 77206 | Houston | 94 | A | 1 (1 health) |
| 49 | 77207 | Houston | 94 | A | 1 (1 health) |
| 50 | 77208 | Houston | 94 | A | 1 (1 health) |
Overview
Texas's 18th District encompasses 111 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (92/100).
111 EPA violations have been recorded across this district's water systems. 108 are health-based violations. About 98% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Fecal Coliform - 108 violations
- Revised Total Coliform Rule - 2 violations
- Stage 1 DBP Rule - 1 violation
Housing Context
Homes in this district were built on average around 1983 (~43 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 111 ZIP codes in Texas's 18th District.