2026 Rankings

Worst Infrastructure: Illinois — 2026 Rankings

Last updated: August 31, 2026

1,389 ZIP codes ranked by Pipe Failure Risk #1: ZIP 60002 (Antioch, IL) - NaN%

Out of 1,389 ZIP codes with infrastructure data in Illinois, 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 1,389
Highest risk NaN%
Median risk NaN%
Average risk NaN%
State Illinois

Top 100 Highest Risk ZIP Codes

Rank ZIP Code City State Pipe Failure Risk Risk Level Safety Score
1 60002 Antioch IL NaN% Unknown 76/100
2 60004 Arlington Heights IL NaN% Unknown 59/100
3 60005 Arlington Heights IL NaN% Unknown 58/100
4 60007 Elk Grove Village IL NaN% Unknown 58/100
5 60008 Rolling Meadows IL NaN% Unknown 58/100
6 60010 Barrington IL NaN% Unknown 67/100
7 60012 Crystal Lake IL NaN% Unknown
8 60013 Cary IL NaN% Unknown 75/100
9 60014 Crystal Lake IL NaN% Unknown 67/100
10 60015 Deerfield IL NaN% Unknown 76/100
11 60016 Des Plaines IL NaN% Unknown 58/100
12 60018 Des Plaines IL NaN% Unknown 59/100
13 60020 Fox Lake IL NaN% Unknown 50/100
14 60021 Fox River Grove IL NaN% Unknown 76/100
15 60022 Glencoe IL NaN% Unknown 75/100
16 60025 Glenview IL NaN% Unknown 69/100
17 60026 Glenview IL NaN% Unknown 73/100
18 60029 Golf IL NaN% Unknown
19 60030 Grayslake IL NaN% Unknown 67/100
20 60031 Gurnee IL NaN% Unknown 78/100
21 60033 Harvard IL NaN% Unknown 83/100
22 60034 Hebron IL NaN% Unknown
23 60035 Highland Park IL NaN% Unknown 76/100
24 60040 Highwood IL NaN% Unknown 81/100
25 60041 Ingleside IL NaN% Unknown 50/100
26 60042 Island Lake IL NaN% Unknown 73/100
27 60043 Kenilworth IL NaN% Unknown 73/100
28 60044 Lake Bluff IL NaN% Unknown 68/100
29 60045 Lake Forest IL NaN% Unknown 81/100
30 60046 Lake Villa IL NaN% Unknown 76/100
31 60047 Lake Zurich IL NaN% Unknown 67/100
32 60048 Libertyville IL NaN% Unknown 67/100
33 60050 Mchenry IL NaN% Unknown 53/100
34 60051 Mchenry IL NaN% Unknown 67/100
35 60053 Morton Grove IL NaN% Unknown 66/100
36 60056 Mount Prospect IL NaN% Unknown 58/100
37 60060 Mundelein IL NaN% Unknown 67/100
38 60061 Vernon Hills IL NaN% Unknown 71/100
39 60062 Northbrook IL NaN% Unknown 66/100
40 60064 North Chicago IL NaN% Unknown 74/100
41 60067 Palatine IL NaN% Unknown 72/100
42 60068 Park Ridge IL NaN% Unknown 61/100
43 60069 Lincolnshire IL NaN% Unknown 80/100
44 60070 Prospect Heights IL NaN% Unknown 60/100
45 60071 Richmond IL NaN% Unknown
46 60072 Ringwood IL NaN% Unknown
47 60073 Round Lake IL NaN% Unknown 67/100
48 60074 Palatine IL NaN% Unknown
49 60076 Skokie IL NaN% Unknown 71/100
50 60077 Skokie IL NaN% Unknown 68/100
51 60081 Spring Grove IL NaN% Unknown 62/100
52 60083 Wadsworth IL NaN% Unknown 76/100
53 60084 Wauconda IL NaN% Unknown 71/100
54 60085 Waukegan IL NaN% Unknown 70/100
55 60087 Waukegan IL NaN% Unknown 76/100
56 60088 Great Lakes IL NaN% Unknown 80/100
57 60089 Buffalo Grove IL NaN% Unknown 58/100
58 60090 Wheeling IL NaN% Unknown 62/100
59 60091 Wilmette IL NaN% Unknown 70/100
60 60093 Winnetka IL NaN% Unknown 70/100
61 60096 Winthrop Harbor IL NaN% Unknown 68/100
62 60097 Wonder Lake IL NaN% Unknown 71/100
63 60098 Woodstock IL NaN% Unknown 67/100
64 60099 Zion IL NaN% Unknown 67/100
65 60101 Addison IL NaN% Unknown 75/100
66 60102 Algonquin IL NaN% Unknown 82/100
67 60103 Bartlett IL NaN% Unknown 73/100
68 60104 Bellwood IL NaN% Unknown 71/100
69 60106 Bensenville IL NaN% Unknown 79/100
70 60107 Streamwood IL NaN% Unknown 70/100
71 60108 Bloomingdale IL NaN% Unknown 77/100
72 60109 Burlington IL NaN% Unknown
73 60110 Carpentersville IL NaN% Unknown 66/100
74 60111 Clare IL NaN% Unknown
75 60112 Cortland IL NaN% Unknown
76 60113 Creston IL NaN% Unknown
77 60115 Dekalb IL NaN% Unknown
78 60118 Dundee IL NaN% Unknown 56/100
79 60119 Elburn IL NaN% Unknown 62/100
80 60120 Elgin IL NaN% Unknown 59/100
81 60123 Elgin IL NaN% Unknown 59/100
82 60124 Elgin IL NaN% Unknown 53/100
83 60126 Elmhurst IL NaN% Unknown 80/100
84 60129 Esmond IL NaN% Unknown
85 60130 Forest Park IL NaN% Unknown 71/100
86 60131 Franklin Park IL NaN% Unknown 71/100
87 60133 Hanover Park IL NaN% Unknown
88 60134 Geneva IL NaN% Unknown 64/100
89 60135 Genoa IL NaN% Unknown
90 60136 Gilberts IL NaN% Unknown 58/100
91 60137 Glen Ellyn IL NaN% Unknown 58/100
92 60139 Glendale Heights IL NaN% Unknown 73/100
93 60140 Hampshire IL NaN% Unknown 55/100
94 60141 Hines IL NaN% Unknown
95 60142 Huntley IL NaN% Unknown 73/100
96 60143 Itasca IL NaN% Unknown 80/100
97 60144 Kaneville IL NaN% Unknown
98 60145 Kingston IL NaN% Unknown
99 60146 Kirkland IL NaN% Unknown
100 60148 Lombard IL NaN% Unknown 61/100

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: 2026-08-31.

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.

Explore More Rankings

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


Related Rankings

Water Safety 2026 EPA violations and water quality scores Lead Risk 2026 Lead pipe infrastructure and EPA exceedances Infrastructure 2026 Aging pipes, system age and remediation costs
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.

Get safety alerts for Illinois

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool - no phone call required.