Worst Infrastructure: Minnesota — 2026 Rankings

Out of 876 ZIP codes with infrastructure data in Minnesota, 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	876
Highest risk	NaN%
Median risk	NaN%
Average risk	NaN%
State	Minnesota

Top 100 Highest Risk ZIP Codes

Rank	ZIP Code	City	State	Pipe Failure Risk	Risk Level	Safety Score
1	55001	Afton	MN	NaN%	Unknown	—
2	55003	Bayport	MN	NaN%	Unknown	—
3	55005	Bethel	MN	NaN%	Unknown	—
4	55006	Braham	MN	NaN%	Unknown	—
5	55007	Brook Park	MN	NaN%	Unknown	—
6	55008	Cambridge	MN	NaN%	Unknown	—
7	55009	Cannon Falls	MN	NaN%	Unknown	67/100
8	55011	Cedar	MN	NaN%	Unknown	—
9	55012	Center City	MN	NaN%	Unknown	—
10	55013	Chisago City	MN	NaN%	Unknown	—
11	55014	Circle Pines	MN	NaN%	Unknown	83/100
12	55016	Cottage Grove	MN	NaN%	Unknown	67/100
13	55017	Dalbo	MN	NaN%	Unknown	—
14	55018	Dennison	MN	NaN%	Unknown	—
15	55019	Dundas	MN	NaN%	Unknown	—
16	55020	Elko New Market	MN	NaN%	Unknown	67/100
17	55021	Faribault	MN	NaN%	Unknown	—
18	55024	Farmington	MN	NaN%	Unknown	67/100
19	55025	Forest Lake	MN	NaN%	Unknown	66/100
20	55026	Frontenac	MN	NaN%	Unknown	—
21	55027	Goodhue	MN	NaN%	Unknown	—
22	55029	Grandy	MN	NaN%	Unknown	—
23	55030	Grasston	MN	NaN%	Unknown	—
24	55031	Hampton	MN	NaN%	Unknown	—
25	55032	Harris	MN	NaN%	Unknown	—
26	55033	Hastings	MN	NaN%	Unknown	49/100
27	55036	Henriette	MN	NaN%	Unknown	—
28	55037	Hinckley	MN	NaN%	Unknown	—
29	55038	Hugo	MN	NaN%	Unknown	83/100
30	55040	Isanti	MN	NaN%	Unknown	—
31	55041	Lake City	MN	NaN%	Unknown	67/100
32	55042	Lake Elmo	MN	NaN%	Unknown	49/100
33	55043	Lakeland	MN	NaN%	Unknown	66/100
34	55044	Lakeville	MN	NaN%	Unknown	66/100
35	55045	Lindstrom	MN	NaN%	Unknown	—
36	55046	Lonsdale	MN	NaN%	Unknown	—
37	55047	Marine On Saint Croix	MN	NaN%	Unknown	—
38	55049	Medford	MN	NaN%	Unknown	—
39	55051	Mora	MN	NaN%	Unknown	—
40	55052	Morristown	MN	NaN%	Unknown	—
41	55053	Nerstrand	MN	NaN%	Unknown	—
42	55054	Elko New Market	MN	NaN%	Unknown	—
43	55055	Newport	MN	NaN%	Unknown	50/100
44	55056	North Branch	MN	NaN%	Unknown	—
45	55057	Northfield	MN	NaN%	Unknown	—
46	55060	Owatonna	MN	NaN%	Unknown	—
47	55063	Pine City	MN	NaN%	Unknown	—
48	55065	Randolph	MN	NaN%	Unknown	—
49	55066	Red Wing	MN	NaN%	Unknown	67/100
50	55068	Rosemount	MN	NaN%	Unknown	66/100
51	55069	Rush City	MN	NaN%	Unknown	—
52	55070	Saint Francis	MN	NaN%	Unknown	83/100
53	55071	Saint Paul Park	MN	NaN%	Unknown	66/100
54	55072	Sandstone	MN	NaN%	Unknown	—
55	55073	Scandia	MN	NaN%	Unknown	—
56	55074	Shafer	MN	NaN%	Unknown	—
57	55075	South Saint Paul	MN	NaN%	Unknown	47/100
58	55076	Inver Grove Heights	MN	NaN%	Unknown	—
59	55077	Inver Grove Heights	MN	NaN%	Unknown	64/100
60	55079	Stacy	MN	NaN%	Unknown	—
61	55080	Stanchfield	MN	NaN%	Unknown	—
62	55082	Stillwater	MN	NaN%	Unknown	49/100
63	55084	Taylors Falls	MN	NaN%	Unknown	—
64	55085	Vermillion	MN	NaN%	Unknown	—
65	55087	Warsaw	MN	NaN%	Unknown	—
66	55088	Webster	MN	NaN%	Unknown	—
67	55089	Welch	MN	NaN%	Unknown	67/100
68	55090	Willernie	MN	NaN%	Unknown	—
69	55092	Wyoming	MN	NaN%	Unknown	83/100
70	55101	Saint Paul	MN	NaN%	Unknown	64/100
71	55102	Saint Paul	MN	NaN%	Unknown	64/100
72	55103	Saint Paul	MN	NaN%	Unknown	64/100
73	55104	Saint Paul	MN	NaN%	Unknown	64/100
74	55105	Saint Paul	MN	NaN%	Unknown	64/100
75	55106	Saint Paul	MN	NaN%	Unknown	64/100
76	55107	Saint Paul	MN	NaN%	Unknown	64/100
77	55108	Saint Paul	MN	NaN%	Unknown	64/100
78	55109	Saint Paul	MN	NaN%	Unknown	47/100
79	55110	Saint Paul	MN	NaN%	Unknown	44/100
80	55111	Saint Paul	MN	NaN%	Unknown	—
81	55112	Saint Paul	MN	NaN%	Unknown	66/100
82	55113	Saint Paul	MN	NaN%	Unknown	64/100
83	55114	Saint Paul	MN	NaN%	Unknown	64/100
84	55115	Saint Paul	MN	NaN%	Unknown	65/100
85	55116	Saint Paul	MN	NaN%	Unknown	64/100
86	55117	Saint Paul	MN	NaN%	Unknown	63/100
87	55118	Saint Paul	MN	NaN%	Unknown	—
88	55119	Saint Paul	MN	NaN%	Unknown	64/100
89	55120	Saint Paul	MN	NaN%	Unknown	—
90	55121	Saint Paul	MN	NaN%	Unknown	—
91	55122	Saint Paul	MN	NaN%	Unknown	67/100
92	55123	Saint Paul	MN	NaN%	Unknown	67/100
93	55124	Saint Paul	MN	NaN%	Unknown	67/100
94	55125	Saint Paul	MN	NaN%	Unknown	47/100
95	55126	Saint Paul	MN	NaN%	Unknown	65/100
96	55127	Saint Paul	MN	NaN%	Unknown	65/100
97	55128	Saint Paul	MN	NaN%	Unknown	64/100
98	55129	Saint Paul	MN	NaN%	Unknown	—
99	55130	Saint Paul	MN	NaN%	Unknown	64/100
100	55150	Mendota	MN	NaN%	Unknown	—

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.