Washington — 10th District
119th Congress · 44 ZIP codes · Avg score 92/100 · Grade A · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 44 ZIP codes in Washington's 10th District: the district earns a grade A (92/100). 88 EPA violations on record, 7 health-based.
Top Contaminants
ZIP Codes in This District
44 ZIP codes tracked in Washington's 10th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 98303 | Anderson Island | 99 | A | 0 |
| 2 | 98327 | Dupont | 99 | A | 1 |
| 3 | 98439 | Lakewood | 99 | A | 0 |
| 4 | 98492 | Lakewood | 99 | A | 0 |
| 5 | 98496 | Lakewood | 99 | A | 0 |
| 6 | 98497 | Lakewood | 99 | A | 0 |
| 7 | 98556 | Littlerock | 99 | A | 1 |
| 8 | 98504 | Olympia | 98 | A | 2 |
| 9 | 98505 | Olympia | 98 | A | 2 |
| 10 | 98508 | Olympia | 98 | A | 2 |
| 11 | 98599 | Olympia | 98 | A | 2 |
| 12 | 98433 | Tacoma | 97 | A | 2 |
| 13 | 98442 | Tacoma | 97 | A | 2 |
| 14 | 98447 | Tacoma | 97 | A | 2 |
| 15 | 98509 | Lacey | 96 | A | 0 |
| 16 | 98388 | Steilacoom | 95 | A | 0 |
| 17 | 98498 | Lakewood | 95 | A | 0 |
| 18 | 98387 | Spanaway | 94 | A | 3 |
| 19 | 98506 | Olympia | 94 | A | 2 |
| 20 | 98507 | Olympia | 94 | A | 2 |
| 21 | 98516 | Olympia | 94 | A | 2 |
| 22 | 98408 | Tacoma | 93 | A | 2 |
| 23 | 98418 | Tacoma | 93 | A | 2 |
| 24 | 98503 | Lacey | 93 | A | 0 |
| 25 | 98373 | Puyallup | 92 | A | 6 |
| 26 | 98375 | Puyallup | 92 | A | 6 |
| 27 | 98499 | Lakewood | 90 | A | 0 |
| 28 | 98501 | Olympia | 89 | A | 2 |
| 29 | 98502 | Olympia | 89 | A | 2 |
| 30 | 98512 | Olympia | 89 | A | 2 |
| 31 | 98404 | Tacoma | 88 | A | 2 |
| 32 | 98444 | Tacoma | 88 | A | 2 |
| 33 | 98445 | Tacoma | 88 | A | 2 |
| 34 | 98446 | Tacoma | 88 | A | 2 |
| 35 | 98466 | Tacoma | 88 | A | 2 |
| 36 | 98467 | University Place | 88 | A | 0 |
| 37 | 98540 | East Olympia | 88 | A | 0 |
| 38 | 98372 | Puyallup | 87 | A | 6 |
| 39 | 98374 | Puyallup | 87 | A | 6 |
| 40 | 98513 | Olympia | 84 | B | 2 |
| 41 | 98443 | Tacoma | 83 | B | 2 |
| 42 | 98371 | Puyallup | 82 | B | 6 |
| 43 | 98390 | Sumner | 80 | B | 1 |
| 44 | 98511 | Tumwater | 77 | B | 8 (7 health) |
Overview
Washington's 10th District encompasses 44 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (92/100).
88 EPA violations have been recorded across this district's water systems. 7 are health-based violations. About 73% 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 - 30 violations
- Consumer Confidence Report Rule - 21 violations
- Haloacetic Acids (HAA5) - 17 violations
- Lead - 12 violations
- E. coli - 7 violations
Housing Context
Homes in this district were built on average around 1981 (~45 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 44 ZIP codes in Washington's 10th District.