2026 Rankings

Worst Infrastructure: Louisiana — 2026 Rankings

Last updated: July 19, 2026

686 ZIP codes ranked by Pipe Failure Risk #1: ZIP 70116 (New Orleans, LA) - 67%
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 686 ZIP codes with infrastructure data in Louisiana, 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 686
Highest risk 67%
Median risk 40%
Average risk 39%
State Louisiana

Top 100 Highest Risk ZIP Codes

Rank ZIP Code City State Pipe Failure Risk Risk Level Safety Score
1 70116 New Orleans LA 67% Very High 64/100
2 71472 Sieper LA 67% Very High 50/100
3 70115 New Orleans LA 65% Very High 64/100
4 70118 New Orleans LA 65% Very High 64/100
5 70119 New Orleans LA 63% Very High 64/100
6 70558 Milton LA 63% Very High 84/100
7 70117 New Orleans LA 62% Very High 64/100
8 70125 New Orleans LA 61% Very High 64/100
9 70130 New Orleans LA 61% Very High 64/100
10 70112 New Orleans LA 60% High 64/100
11 70113 New Orleans LA 59% High 64/100
12 70121 New Orleans LA 59% High 64/100
13 71101 Shreveport LA 59% High 65/100
14 71103 Shreveport LA 59% High 65/100
15 71104 Shreveport LA 59% High 55/100
16 71356 Morrow LA 59% High 87/100
17 71301 Alexandria LA 58% High 55/100
18 70114 New Orleans LA 57% High 64/100
19 70122 New Orleans LA 56% High 64/100
20 71109 Shreveport LA 56% High 60/100
21 71330 Echo LA 56% High 83/100
22 71366 Saint Joseph LA 56% High 52/100
23 70513 Avery Island LA 55% High 60/100
24 71108 Shreveport LA 55% High 60/100
25 71201 Monroe LA 55% High 51/100
26 71357 Newellton LA 55% High 60/100
27 71426 Fisher LA 55% High 95/100
28 71483 Winnfield LA 55% High 60/100
29 70131 New Orleans LA 54% High 64/100
30 71064 Plain Dealing LA 54% High 69/100
31 71082 Vivian LA 54% High 86/100
32 71302 Alexandria LA 54% High 55/100
33 71325 Cheneyville LA 54% High 88/100
34 71463 Oakdale LA 54% High 72/100
35 70076 Mount Airy LA 53% High 52/100
36 70093 Belle Chasse LA 53% High 66/100
37 70126 New Orleans LA 53% High 64/100
38 70127 New Orleans LA 53% High 64/100
39 70538 Franklin LA 53% High 50/100
40 71068 Ringgold LA 53% High 78/100
41 71080 Taylor LA 53% High 50/100
42 71102 Shreveport LA 53% High 70/100
43 71113 Bossier City LA 53% High 66/100
44 71120 Shreveport LA 53% High 70/100
45 71130 Shreveport LA 53% High 66/100
46 71133 Shreveport LA 53% High 66/100
47 71134 Shreveport LA 53% High 70/100
48 71135 Shreveport LA 53% High 66/100
49 71136 Shreveport LA 53% High 70/100
50 71137 Shreveport LA 53% High 70/100
51 71138 Shreveport LA 53% High 70/100
52 71148 Shreveport LA 53% High 66/100
53 71149 Shreveport LA 53% High 70/100
54 71150 Shreveport LA 53% High 66/100
55 71151 Shreveport LA 53% High 66/100
56 71152 Shreveport LA 53% High 66/100
57 71153 Shreveport LA 53% High 66/100
58 71154 Shreveport LA 53% High 66/100
59 71156 Shreveport LA 53% High 66/100
60 71161 Shreveport LA 53% High 66/100
61 71162 Shreveport LA 53% High 70/100
62 71163 Shreveport LA 53% High 66/100
63 71164 Shreveport LA 53% High 66/100
64 71165 Shreveport LA 53% High 66/100
65 71166 Shreveport LA 53% High 66/100
66 71171 Bossier City LA 53% High 70/100
67 71172 Bossier City LA 53% High 66/100
68 71240 Fairbanks LA 53% High 60/100
69 71250 Jones LA 53% High 60/100
70 71306 Alexandria LA 53% High 70/100
71 71307 Alexandria LA 53% High 70/100
72 71309 Alexandria LA 53% High 65/100
73 71315 Alexandria LA 53% High 70/100
74 71322 Bunkie LA 53% High 66/100
75 71440 Joyce LA 53% High 66/100
76 71471 Saint Maurice LA 53% High 60/100
77 70051 Garyville LA 52% High 47/100
78 70340 Amelia LA 52% High 68/100
79 70541 Grand Coteau LA 52% High 78/100
80 71016 Castor LA 52% High 46/100
81 71202 Monroe LA 52% High 51/100
82 71223 Bonita LA 52% High 65/100
83 71326 Clayton LA 52% High 50/100
84 71410 Calvin LA 52% High 70/100
85 70124 New Orleans LA 51% High 64/100
86 71105 Shreveport LA 51% High 55/100
87 71220 Bastrop LA 51% High 67/100
88 71222 Bernice LA 51% High 65/100
89 71247 Hodge LA 51% High 82/100
90 71414 Clarence LA 51% High 52/100
91 70053 Gretna LA 50% High 73/100
92 70128 New Orleans LA 50% High 64/100
93 70391 Paincourtville LA 50% High 60/100
94 70554 Mamou LA 50% High 64/100
95 70757 Maringouin LA 50% High 89/100
96 70764 Plaquemine LA 50% High 60/100
97 70773 Rougon LA 50% High 60/100
98 71040 Homer LA 50% High 70/100
99 71048 Lisbon LA 50% High 94/100
100 71052 Mansfield LA 50% High 65/100

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: 2026-07-19.

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.

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