Seattle, WA Neighborhood Water Quality - Grade A
62 ZIP codes · 62 EPA violations
Data source: EPA SDWIS Last verified: 2026-07-19
ZipCheckup compares 62 ZIP codes across Seattle, WA. The area averages a grade A (95/100); 62 ZIP codes carry recorded EPA violations.
Water quality varies significantly across Seattle, WA. We analyzed 62 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade A (95/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 62 | 100% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Seattle ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 98111 | 99 | A | 1 | 0.0035 mg/L |
| 2 | 98113 | 99 | A | 1 | 0.0035 mg/L |
| 3 | 98114 | 99 | A | 1 | 0.0035 mg/L |
| 4 | 98124 | 99 | A | 1 | 0.0035 mg/L |
| 5 | 98127 | 99 | A | 1 | 0.0035 mg/L |
| 6 | 98129 | 99 | A | 1 | 0.0035 mg/L |
| 7 | 98131 | 99 | A | 1 | 0.0035 mg/L |
| 8 | 98132 | 99 | A | 1 | 0.0035 mg/L |
| 9 | 98134 | 99 | A | 1 | 0.0035 mg/L |
| 10 | 98138 | 99 | A | 1 | 0.0035 mg/L |
| 11 | 98139 | 99 | A | 1 | 0.0035 mg/L |
| 12 | 98141 | 99 | A | 1 | 0.0035 mg/L |
| 13 | 98145 | 99 | A | 1 | 0.0035 mg/L |
| 14 | 98154 | 99 | A | 1 | 0.0035 mg/L |
| 15 | 98158 | 99 | A | 1 | 0.0035 mg/L |
| 16 | 98160 | 99 | A | 1 | 0.0035 mg/L |
| 17 | 98161 | 99 | A | 1 | 0.0035 mg/L |
| 18 | 98164 | 99 | A | 1 | 0.0035 mg/L |
| 19 | 98165 | 99 | A | 1 | 0.0035 mg/L |
| 20 | 98170 | 99 | A | 1 | 0.0035 mg/L |
| 21 | 98171 | 99 | A | 1 | 0.0035 mg/L |
| 22 | 98174 | 99 | A | 1 | 0.0035 mg/L |
| 23 | 98175 | 99 | A | 1 | 0.0035 mg/L |
| 24 | 98181 | 99 | A | 1 | 0.0035 mg/L |
| 25 | 98185 | 99 | A | 1 | 0.0035 mg/L |
| 26 | 98189 | 99 | A | 1 | 0.0035 mg/L |
| 27 | 98190 | 99 | A | 1 | 0.0035 mg/L |
| 28 | 98191 | 99 | A | 1 | 0.0035 mg/L |
| 29 | 98194 | 99 | A | 1 | 0.0035 mg/L |
| 30 | 98195 | 99 | A | 1 | 0.0035 mg/L |
| 31 | 98101 | 95 | A | 1 | 0.0035 mg/L |
| 32 | 98102 | 95 | A | 1 | 0.0035 mg/L |
| 33 | 98103 | 95 | A | 1 | 0.0035 mg/L |
| 34 | 98104 | 95 | A | 1 | 0.0035 mg/L |
| 35 | 98105 | 95 | A | 1 | 0.0035 mg/L |
| 36 | 98107 | 95 | A | 1 | 0.0035 mg/L |
| 37 | 98109 | 95 | A | 1 | 0.0035 mg/L |
| 38 | 98118 | 95 | A | 1 | 0.0035 mg/L |
| 39 | 98119 | 95 | A | 1 | 0.0035 mg/L |
| 40 | 98121 | 95 | A | 1 | 0.0035 mg/L |
| 41 | 98122 | 95 | A | 1 | 0.0035 mg/L |
| 42 | 98144 | 95 | A | 1 | 0.0035 mg/L |
| 43 | 98148 | 95 | A | 1 | 0.0035 mg/L |
| 44 | 98168 | 95 | A | 1 | 0.0035 mg/L |
| 45 | 98188 | 95 | A | 1 | 0.0035 mg/L |
| 46 | 98106 | 90 | A | 1 | 0.0035 mg/L |
| 47 | 98108 | 90 | A | 1 | 0.0035 mg/L |
| 48 | 98112 | 90 | A | 1 | 0.0035 mg/L |
| 49 | 98115 | 90 | A | 1 | 0.0035 mg/L |
| 50 | 98116 | 90 | A | 1 | 0.0035 mg/L |
| 51 | 98117 | 90 | A | 1 | 0.0035 mg/L |
| 52 | 98125 | 90 | A | 1 | 0.0035 mg/L |
| 53 | 98126 | 90 | A | 1 | 0.0035 mg/L |
| 54 | 98133 | 90 | A | 1 | 0.0035 mg/L |
| 55 | 98136 | 90 | A | 1 | 0.0035 mg/L |
| 56 | 98146 | 90 | A | 1 | 0.0035 mg/L |
| 57 | 98155 | 90 | A | 1 | 0.0035 mg/L |
| 58 | 98177 | 90 | A | 1 | 0.0035 mg/L |
| 59 | 98178 | 90 | A | 1 | 0.0035 mg/L |
| 60 | 98198 | 90 | A | 1 | 0.0035 mg/L |
| 61 | 98199 | 90 | A | 1 | 0.0035 mg/L |
| 62 | 98166 | 85 | A | 1 | 0.0035 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 45 neighborhoods score better than county average
- 17 neighborhoods score worse than county average
EPA Violations
- 62 total violations across Seattle
- 0 health-based violations
- 62 of 62 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Surface Water Treatment Rule | 62 | 62 |
Frequently Asked Questions
What is the safest neighborhood in Seattle?
ZIP code 98111 has the highest safety score in Seattle at 99/100 (grade A). Check the full report for details.
Is Seattle water safe to drink?
Seattle has an average water safety score of 95/100 (A). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.