Washington — 7th District
119th Congress · 54 ZIP codes · Avg score 94/100 · Grade A · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 54 ZIP codes in Washington's 7th District: the district earns a grade A (94/100). 55 EPA violations on record, 1 health-based.
Top Contaminants
ZIP Codes in This District
54 ZIP codes tracked in Washington's 7th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 98111 | Seattle | 99 | A | 1 |
| 2 | 98113 | Seattle | 99 | A | 1 |
| 3 | 98114 | Seattle | 99 | A | 1 |
| 4 | 98124 | Seattle | 99 | A | 1 |
| 5 | 98127 | Seattle | 99 | A | 1 |
| 6 | 98129 | Seattle | 99 | A | 1 |
| 7 | 98131 | Seattle | 99 | A | 1 |
| 8 | 98134 | Seattle | 99 | A | 1 |
| 9 | 98138 | Seattle | 99 | A | 1 |
| 10 | 98139 | Seattle | 99 | A | 1 |
| 11 | 98141 | Seattle | 99 | A | 1 |
| 12 | 98145 | Seattle | 99 | A | 1 |
| 13 | 98154 | Seattle | 99 | A | 1 |
| 14 | 98160 | Seattle | 99 | A | 1 |
| 15 | 98161 | Seattle | 99 | A | 1 |
| 16 | 98164 | Seattle | 99 | A | 1 |
| 17 | 98165 | Seattle | 99 | A | 1 |
| 18 | 98170 | Seattle | 99 | A | 1 |
| 19 | 98171 | Seattle | 99 | A | 1 |
| 20 | 98174 | Seattle | 99 | A | 1 |
| 21 | 98175 | Seattle | 99 | A | 1 |
| 22 | 98181 | Seattle | 99 | A | 1 |
| 23 | 98185 | Seattle | 99 | A | 1 |
| 24 | 98190 | Seattle | 99 | A | 1 |
| 25 | 98191 | Seattle | 99 | A | 1 |
| 26 | 98195 | Seattle | 99 | A | 1 |
| 27 | 98101 | Seattle | 95 | A | 1 |
| 28 | 98102 | Seattle | 95 | A | 1 |
| 29 | 98103 | Seattle | 95 | A | 1 |
| 30 | 98105 | Seattle | 95 | A | 1 |
| 31 | 98107 | Seattle | 95 | A | 1 |
| 32 | 98109 | Seattle | 95 | A | 1 |
| 33 | 98119 | Seattle | 95 | A | 1 |
| 34 | 98121 | Seattle | 95 | A | 1 |
| 35 | 98148 | Seattle | 95 | A | 1 |
| 36 | 98168 | Seattle | 95 | A | 1 |
| 37 | 98106 | Seattle | 90 | A | 1 |
| 38 | 98108 | Seattle | 90 | A | 1 |
| 39 | 98112 | Seattle | 90 | A | 1 |
| 40 | 98115 | Seattle | 90 | A | 1 |
| 41 | 98116 | Seattle | 90 | A | 1 |
| 42 | 98117 | Seattle | 90 | A | 1 |
| 43 | 98125 | Seattle | 90 | A | 1 |
| 44 | 98126 | Seattle | 90 | A | 1 |
| 45 | 98133 | Seattle | 90 | A | 1 |
| 46 | 98136 | Seattle | 90 | A | 1 |
| 47 | 98146 | Seattle | 90 | A | 1 |
| 48 | 98155 | Seattle | 90 | A | 1 |
| 49 | 98177 | Seattle | 90 | A | 1 |
| 50 | 98199 | Seattle | 90 | A | 1 |
Overview
Washington's 7th District encompasses 54 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (94/100).
55 EPA violations have been recorded across this district's water systems. 1 are health-based violations. About 96% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Surface Water Treatment Rule - 52 violations
- Barium - 2 violations
- Contaminant 0800 - 1 violation
Housing Context
Homes in this district were built on average around 1973 (~53 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 54 ZIP codes in Washington's 7th District.