2026 Rankings

Worst Water Infrastructure by Metro Area — 2026

Last updated: July 19, 2026

0 ZIP codes ranked by Score

Metro Areas by Infrastructure Risk

Rank Metro Area ZIP Codes Avg. Risk Worst ZIP Risk
1 Boston 61 51% 71%
2 New York 226 50% 68%
3 Washington DC 340 48% 81%
4 Chicago 118 44% 60%
5 Philadelphia 141 44% 60%
6 Detroit 71 44% 64%
7 Baltimore 59 42% 54%
8 Seattle 120 41% 58%
9 Minneapolis 71 41% 56%
10 Charlotte 87 41% 49%
11 San Diego 101 39% 55%
12 Los Angeles 160 38% 56%
13 San Francisco 154 37% 57%
14 Denver 98 36% 52%
15 San Antonio 92 36% 53%
16 Phoenix 138 35% 51%
17 Portland 85 34% 56%
18 Dallas-Fort Worth 214 32% 50%
19 Riverside 39 32% 46%
20 Miami 192 31% 49%
21 Houston 207 27% 49%
22 Atlanta 118 27% 41%
23 Tampa 90 24% 40%
24 Orlando 75 22% 44%

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How this ranking is calculated, data sources, and limitations: Rankings Methodology →


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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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