Peor infraestructura: Seattle Área metropolitana

Out of 120 ZIP codes with infrastructure data in the Seattle metro area, these areas face the highest estimated risk of water pipe failure based on infrastructure age, funding gaps, and violation history.

Statistic	Value
ZIP codes ranked	120
Highest risk	45%
Median risk	36%
Average risk	35%

Top 100 Highest Risk ZIP Codes

Rank	ZIP Code	City	State	Pipe Failure Risk	Risk Level	Safety Score
1	98201	Everett	WA	45%	High	82/100
2	98418	Tacoma	WA	44%	High	93/100
3	98403	Tacoma	WA	43%	High	93/100
4	98117	Seattle	WA	42%	High	90/100
5	98405	Tacoma	WA	42%	High	93/100
6	98112	Seattle	WA	41%	High	90/100
7	98205	Everett	WA	41%	High	87/100
8	98206	Everett	WA	41%	High	87/100
9	98207	Everett	WA	41%	High	91/100
10	98213	Everett	WA	41%	High	91/100
11	98199	Seattle	WA	40%	Moderate	90/100
12	98406	Tacoma	WA	40%	Moderate	93/100
13	98408	Tacoma	WA	40%	Moderate	93/100
14	98115	Seattle	WA	39%	Moderate	90/100
15	98136	Seattle	WA	39%	Moderate	90/100
16	98168	Seattle	WA	39%	Moderate	95/100
17	98177	Seattle	WA	39%	Moderate	90/100
18	98008	Bellevue	WA	38%	Moderate	82/100
19	98035	Kent	WA	38%	Moderate	99/100
20	98064	Kent	WA	38%	Moderate	99/100
21	98089	Kent	WA	38%	Moderate	99/100
22	98134	Seattle	WA	38%	Moderate	99/100
23	98166	Seattle	WA	38%	Moderate	85/100
24	98146	Seattle	WA	37%	Moderate	90/100
25	98155	Seattle	WA	37%	Moderate	90/100
26	98178	Seattle	WA	37%	Moderate	90/100
27	98203	Everett	WA	37%	Moderate	87/100
28	98401	Tacoma	WA	37%	Moderate	97/100
29	98407	Tacoma	WA	37%	Moderate	93/100
30	98411	Tacoma	WA	37%	Moderate	97/100
31	98412	Tacoma	WA	37%	Moderate	97/100
32	98413	Tacoma	WA	37%	Moderate	97/100
33	98415	Tacoma	WA	37%	Moderate	97/100
34	98416	Tacoma	WA	37%	Moderate	97/100
35	98417	Tacoma	WA	37%	Moderate	97/100
36	98419	Tacoma	WA	37%	Moderate	97/100
37	98431	Tacoma	WA	37%	Moderate	97/100
38	98442	Tacoma	WA	37%	Moderate	97/100
39	98447	Tacoma	WA	37%	Moderate	97/100
40	98448	Tacoma	WA	37%	Moderate	97/100
41	98455	Tacoma	WA	37%	Moderate	97/100
42	98460	Tacoma	WA	37%	Moderate	97/100
43	98464	Tacoma	WA	37%	Moderate	97/100
44	98471	Tacoma	WA	37%	Moderate	97/100
45	98481	Tacoma	WA	37%	Moderate	97/100
46	98490	Tacoma	WA	37%	Moderate	97/100
47	98493	Tacoma	WA	37%	Moderate	97/100
48	98103	Seattle	WA	36%	Moderate	95/100
49	98111	Seattle	WA	36%	Moderate	99/100
50	98113	Seattle	WA	36%	Moderate	99/100
51	98114	Seattle	WA	36%	Moderate	99/100
52	98124	Seattle	WA	36%	Moderate	99/100
53	98127	Seattle	WA	36%	Moderate	99/100
54	98129	Seattle	WA	36%	Moderate	99/100
55	98131	Seattle	WA	36%	Moderate	99/100
56	98132	Seattle	WA	36%	Moderate	99/100
57	98138	Seattle	WA	36%	Moderate	99/100
58	98139	Seattle	WA	36%	Moderate	99/100
59	98141	Seattle	WA	36%	Moderate	99/100
60	98145	Seattle	WA	36%	Moderate	99/100
61	98154	Seattle	WA	36%	Moderate	99/100
62	98158	Seattle	WA	36%	Moderate	99/100
63	98160	Seattle	WA	36%	Moderate	99/100
64	98161	Seattle	WA	36%	Moderate	99/100
65	98165	Seattle	WA	36%	Moderate	99/100
66	98170	Seattle	WA	36%	Moderate	99/100
67	98171	Seattle	WA	36%	Moderate	99/100
68	98174	Seattle	WA	36%	Moderate	99/100
69	98175	Seattle	WA	36%	Moderate	99/100
70	98181	Seattle	WA	36%	Moderate	99/100
71	98185	Seattle	WA	36%	Moderate	99/100
72	98189	Seattle	WA	36%	Moderate	99/100
73	98190	Seattle	WA	36%	Moderate	99/100
74	98191	Seattle	WA	36%	Moderate	99/100
75	98194	Seattle	WA	36%	Moderate	99/100
76	98195	Seattle	WA	36%	Moderate	99/100
77	98465	Tacoma	WA	36%	Moderate	93/100
78	98102	Seattle	WA	35%	Moderate	95/100
79	98116	Seattle	WA	35%	Moderate	90/100
80	98118	Seattle	WA	35%	Moderate	95/100
81	98119	Seattle	WA	35%	Moderate	95/100
82	98126	Seattle	WA	35%	Moderate	90/100
83	98188	Seattle	WA	35%	Moderate	95/100
84	98443	Tacoma	WA	35%	Moderate	83/100
85	98105	Seattle	WA	34%	Moderate	95/100
86	98108	Seattle	WA	34%	Moderate	90/100
87	98144	Seattle	WA	34%	Moderate	95/100
88	98198	Seattle	WA	34%	Moderate	90/100
89	98007	Bellevue	WA	33%	Moderate	82/100
90	98125	Seattle	WA	33%	Moderate	90/100
91	98133	Seattle	WA	33%	Moderate	90/100
92	98404	Tacoma	WA	33%	Moderate	88/100
93	98409	Tacoma	WA	33%	Moderate	93/100
94	98466	Tacoma	WA	33%	Moderate	88/100
95	98006	Bellevue	WA	32%	Moderate	82/100
96	98122	Seattle	WA	32%	Moderate	95/100
97	98005	Bellevue	WA	31%	Moderate	87/100
98	98106	Seattle	WA	31%	Moderate	90/100
99	98148	Seattle	WA	31%	Moderate	95/100
100	98402	Tacoma	WA	31%	Moderate	93/100

Methodology

Infrastructure risk rankings combine four data sources, each weighted equally (25%): (1) EPA Drinking Water Infrastructure Needs Survey (DWINS 2023) — state-level 20-year funding gap per capita for pipe replacement, treatment, and storage; (2) Census ACS housing vintage — percentage of homes built before 1980, when lead solder and galvanized pipes were common; (3) EPA SDWIS violation and enforcement data — system-level compliance history; (4) Lead and Copper Rule indicators — service line material inventories and 90th percentile lead testing results. The combined score is normalized to a 0-100% probability scale.

Data sources: EPA DWINS 2023, Census ACS, EPA SDWIS, Lead and Copper Rule data. Last updated: 2026-06-04.

Frequently Asked Questions

What does pipe failure probability mean?

Pipe failure probability estimates the likelihood of water main breaks, lead contamination from corroded pipes, or service disruptions based on infrastructure age, state funding gaps, violation history, and lead indicators. It is not a prediction of imminent failure, but a risk assessment based on known factors.

How is infrastructure risk calculated?

The risk score combines four equally weighted factors: state-level infrastructure funding gap per capita (from EPA DWINS 2023), housing vintage (Census ACS pre-1980 housing percentage), water system violation and enforcement history (EPA SDWIS), and lead exposure indicators (service line probability and testing results).

What can homeowners do about aging infrastructure?

Test your tap water annually, especially for lead. Check if your home has a lead service line through your water utility. Consider a whole-house water filter (NSF/ANSI 53 certified). Review your water system Consumer Confidence Report for violation history.

Does high risk mean my water is unsafe right now?

Not necessarily. Infrastructure risk indicates long-term vulnerability, not current contamination. However, areas with aging pipes and high violation counts have a statistically higher chance of water quality issues. Regular testing is the best way to verify your water safety.

Peor infraestructura: Seattle Área metropolitana — 2026