Washington — 9th District
119th Congress · 30 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 30 ZIP codes in Washington's 9th District: the district earns a grade A (92/100). 44 EPA violations on record, 0 health-based.
Top Contaminants
ZIP Codes in This District
30 ZIP codes tracked in Washington's 9th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 98035 | Kent | 99 | A | 1 |
| 2 | 98064 | Kent | 99 | A | 1 |
| 3 | 98089 | Kent | 99 | A | 1 |
| 4 | 98132 | Seattle | 99 | A | 1 |
| 5 | 98158 | Seattle | 99 | A | 1 |
| 6 | 98189 | Seattle | 99 | A | 1 |
| 7 | 98194 | Seattle | 99 | A | 1 |
| 8 | 98030 | Kent | 95 | A | 1 |
| 9 | 98063 | Federal Way | 95 | A | 3 |
| 10 | 98104 | Seattle | 95 | A | 1 |
| 11 | 98118 | Seattle | 95 | A | 1 |
| 12 | 98122 | Seattle | 95 | A | 1 |
| 13 | 98144 | Seattle | 95 | A | 1 |
| 14 | 98188 | Seattle | 95 | A | 1 |
| 15 | 98055 | Renton | 94 | A | 2 |
| 16 | 98056 | Renton | 94 | A | 2 |
| 17 | 98057 | Renton | 94 | A | 2 |
| 18 | 98071 | Auburn | 93 | A | 4 |
| 19 | 98003 | Federal Way | 91 | A | 3 |
| 20 | 98031 | Kent | 90 | A | 1 |
| 21 | 98032 | Kent | 90 | A | 1 |
| 22 | 98178 | Seattle | 90 | A | 1 |
| 23 | 98198 | Seattle | 90 | A | 1 |
| 24 | 98005 | Bellevue | 87 | A | 0 |
| 25 | 98040 | Mercer Island | 87 | A | 0 |
| 26 | 98023 | Federal Way | 86 | A | 3 |
| 27 | 98001 | Auburn | 84 | B | 4 |
| 28 | 98002 | Auburn | 84 | B | 4 |
| 29 | 98006 | Bellevue | 82 | B | 0 |
| 30 | 98047 | Pacific | 60 | C | 0 |
Overview
Washington's 9th District encompasses 30 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (92/100).
44 EPA violations have been recorded across this district's water systems. None are health-based. About 87% 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 - 29 violations
- Stage 1 DBP Rule - 6 violations
- Lead - 6 violations
- Barium - 3 violations
Housing Context
Homes in this district were built on average around 1980 (~46 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 30 ZIP codes in Washington's 9th District.