Peor infraestructura: Illinois — Clasificaciones 2026

Out of 1,538 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	1,538
Highest risk	72%
Median risk	43%
Average risk	42%
State	Illinois

Top 100 Highest Risk ZIP Codes

Rank	ZIP Code	City	State	Pipe Failure Risk	Risk Level	Safety Score
1	61484	Vermont	IL	72%	Very High	13/100
2	61603	Peoria	IL	65%	Very High	32/100
3	61606	Peoria	IL	64%	Very High	37/100
4	61726	Chenoa	IL	64%	Very High	41/100
5	60804	Cicero	IL	63%	Very High	69/100
6	61104	Rockford	IL	63%	Very High	28/100
7	61344	Mineral	IL	63%	Very High	66/100
8	60931	Donovan	IL	62%	Very High	61/100
9	61602	Peoria	IL	62%	Very High	32/100
10	60934	Emington	IL	61%	Very High	24/100
11	61089	Winslow	IL	61%	Very High	41/100
12	61374	Van Orin	IL	61%	Very High	61/100
13	61604	Peoria	IL	61%	Very High	22/100
14	61605	Peoria	IL	61%	Very High	37/100
15	60433	Joliet	IL	60%	High	44/100
16	61014	Chadwick	IL	60%	High	60/100
17	61412	Alexis	IL	60%	High	43/100
18	61730	Cooksville	IL	60%	High	65/100
19	61103	Rockford	IL	59%	High	33/100
20	61345	Neponset	IL	59%	High	61/100
21	61450	La Harpe	IL	59%	High	23/100
22	62266	New Memphis	IL	59%	High	67/100
23	60432	Joliet	IL	58%	High	44/100
24	60436	Joliet	IL	58%	High	49/100
25	60604	Chicago	IL	58%	High	71/100
26	60617	Chicago	IL	58%	High	66/100
27	60639	Chicago	IL	58%	High	66/100
28	60651	Chicago	IL	58%	High	66/100
29	60946	Kempton	IL	58%	High	66/100
30	61957	Windsor	IL	58%	High	68/100
31	62019	Donnellson	IL	58%	High	61/100
32	62439	Lawrenceville	IL	58%	High	49/100
33	62666	Middletown	IL	58%	High	28/100
34	60153	Maywood	IL	57%	High	60/100
35	60409	Calumet City	IL	57%	High	39/100
36	60553	Steward	IL	57%	High	66/100
37	60557	Wedron	IL	57%	High	60/100
38	60641	Chicago	IL	57%	High	66/100
39	60649	Chicago	IL	57%	High	71/100
40	60962	Roberts	IL	57%	High	35/100
41	61042	Harmon	IL	57%	High	69/100
42	61101	Rockford	IL	57%	High	38/100
43	61102	Rockford	IL	57%	High	33/100
44	61235	Atkinson	IL	57%	High	59/100
45	61260	Joy	IL	57%	High	60/100
46	61607	Peoria	IL	57%	High	32/100
47	62667	Modesto	IL	57%	High	56/100
48	60120	Elgin	IL	56%	High	31/100
49	60435	Joliet	IL	56%	High	49/100
50	60625	Chicago	IL	56%	High	61/100
51	60632	Chicago	IL	56%	High	71/100
52	60636	Chicago	IL	56%	High	66/100
53	60644	Chicago	IL	56%	High	66/100
54	60659	Chicago	IL	56%	High	66/100
55	60966	Sheldon	IL	56%	High	46/100
56	61057	Nachusa	IL	56%	High	53/100
57	61077	Seward	IL	56%	High	40/100
58	61244	East Moline	IL	56%	High	26/100
59	61328	Kasbeer	IL	56%	High	40/100
60	61350	Ottawa	IL	56%	High	66/100
61	61368	Tiskilwa	IL	56%	High	61/100
62	61377	Wenona	IL	56%	High	68/100
63	61378	West Brooklyn	IL	56%	High	29/100
64	61433	Fiatt	IL	56%	High	40/100
65	61773	Sibley	IL	56%	High	28/100
66	62077	Panama	IL	56%	High	66/100
67	62098	Wrights	IL	56%	High	40/100
68	62344	Huntsville	IL	56%	High	40/100
69	62622	Bluff Springs	IL	56%	High	40/100
70	60304	Oak Park	IL	55%	High	83/100
71	60420	Dwight	IL	55%	High	41/100
72	60619	Chicago	IL	55%	High	61/100
73	60623	Chicago	IL	55%	High	71/100
74	60626	Chicago	IL	55%	High	66/100
75	60628	Chicago	IL	55%	High	61/100
76	60630	Chicago	IL	55%	High	66/100
77	60643	Chicago	IL	55%	High	66/100
78	60933	Elliott	IL	55%	High	53/100
79	61006	Ashton	IL	55%	High	62/100
80	61254	Geneseo	IL	55%	High	61/100
81	61314	Buda	IL	55%	High	64/100
82	61334	Lostant	IL	55%	High	83/100
83	61338	Manlius	IL	55%	High	61/100
84	61354	Peru	IL	55%	High	57/100
85	61356	Princeton	IL	55%	High	36/100
86	61416	Bardolph	IL	55%	High	45/100
87	61440	Industry	IL	55%	High	61/100
88	61449	La Fayette	IL	55%	High	61/100
89	61465	New Windsor	IL	55%	High	57/100
90	61701	Bloomington	IL	55%	High	57/100
91	61775	Strawn	IL	55%	High	59/100
92	61883	Westville	IL	55%	High	60/100
93	62316	Bowen	IL	55%	High	59/100
94	62510	Assumption	IL	55%	High	65/100
95	62812	Benton	IL	55%	High	54/100
96	60505	Aurora	IL	54%	High	25/100
97	60618	Chicago	IL	54%	High	66/100
98	60620	Chicago	IL	54%	High	66/100
99	60621	Chicago	IL	54%	High	71/100
100	60629	Chicago	IL	54%	High	66/100

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.