2026 Rankings

Least Reliable Water Systems in New Mexico — 2026

Last updated: April 13, 2026

428 ZIP codes ranked by Reliability Score #1: ZIP 87560 (Ribera, NM) - 10/100
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 428 ZIP codes with data in New Mexico, these are the lowest-ranked areas for reliability score. See also: National Least Reliable Water Systems in America | All New Mexico Rankings

Statistic Value
ZIP codes ranked 428
Lowest value 10/100
Median value 62/100
State New Mexico

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Reliability Score Safety Score
1 87560 Ribera NM 10/100 46/100
2 87569 Serafina NM 10/100 33/100
3 87002 Belen NM 15/100 48/100
4 87059 Tijeras NM 15/100 33/100
5 87419 Navajo Dam NM 15/100 25/100
6 88350 Timberon NM 15/100 53/100
7 87026 Laguna NM 16/100 79/100
8 87565 San Jose NM 16/100 51/100
9 88352 Tularosa NM 18/100 76/100
10 88325 High Rolls Mountain Park NM 19/100 78/100
11 87017 Gallina NM 20/100 60/100
12 87053 San Ysidro NM 20/100 50/100
13 87549 Ojo Caliente NM 20/100 44/100
14 87551 Los Ojos NM 20/100 62/100
15 87567 Santa Cruz NM 20/100 45/100
16 87729 Miami NM 20/100 33/100
17 87029 Lindrith NM 22/100 61/100
18 87070 Clines Corners NM 22/100 78/100
19 87723 Holman NM 23/100 59/100
20 88401 Tucumcari NM 24/100 70/100
21 87035 Moriarty NM 25/100 53/100
22 87041 Pena Blanca NM 25/100 69/100
23 87042 Peralta NM 25/100 68/100
24 87068 Bosque Farms NM 25/100 68/100
25 87511 Alcalde NM 25/100 45/100
26 87520 Chama NM 25/100 46/100
27 87538 Ilfeld NM 25/100 55/100
28 87701 Las Vegas NM 25/100 35/100
29 87710 Angel Fire NM 25/100 46/100
30 87714 Cimarron NM 25/100 33/100
31 87747 Springer NM 25/100 33/100
32 87801 Socorro NM 25/100 53/100
33 87829 Quemado NM 25/100 69/100
34 87901 Truth Or Consequences NM 25/100 58/100
35 88045 Lordsburg NM 25/100 58/100
36 88063 Sunland Park NM 25/100 62/100
37 87820 Aragon NM 26/100 43/100
38 87576 Trampas NM 29/100 56/100
39 87711 Anton Chico NM 29/100 65/100
40 88338 Lincoln NM 29/100 77/100
41 87101 Albuquerque NM 30/100 50/100
42 87102 Albuquerque NM 30/100 45/100
43 87103 Albuquerque NM 30/100 33/100
44 87104 Albuquerque NM 30/100 45/100
45 87105 Albuquerque NM 30/100 40/100
46 87106 Albuquerque NM 30/100 45/100
47 87107 Albuquerque NM 30/100 40/100
48 87108 Albuquerque NM 30/100 45/100
49 87109 Albuquerque NM 30/100 40/100
50 87110 Albuquerque NM 30/100 45/100
51 87111 Albuquerque NM 30/100 45/100
52 87112 Albuquerque NM 30/100 40/100
53 87113 Albuquerque NM 30/100 45/100
54 87114 Albuquerque NM 30/100 40/100
55 87115 Albuquerque NM 30/100 33/100
56 87116 Albuquerque NM 30/100 33/100
57 87119 Albuquerque NM 30/100 33/100
58 87120 Albuquerque NM 30/100 45/100
59 87121 Albuquerque NM 30/100 40/100
60 87122 Albuquerque NM 30/100 40/100
61 87123 Albuquerque NM 30/100 45/100
62 87125 Albuquerque NM 30/100 33/100
63 87131 Albuquerque NM 30/100 33/100
64 87151 Albuquerque NM 30/100 33/100
65 87153 Albuquerque NM 30/100 33/100
66 87154 Albuquerque NM 30/100 33/100
67 87158 Albuquerque NM 30/100 33/100
68 87165 Albuquerque NM 30/100 33/100
69 87176 Albuquerque NM 30/100 33/100
70 87181 Albuquerque NM 30/100 33/100
71 87184 Albuquerque NM 30/100 33/100
72 87185 Albuquerque NM 30/100 33/100
73 87187 Albuquerque NM 30/100 33/100
74 87190 Albuquerque NM 30/100 45/100
75 87191 Albuquerque NM 30/100 33/100
76 87192 Albuquerque NM 30/100 33/100
77 87193 Albuquerque NM 30/100 33/100
78 87194 Albuquerque NM 30/100 33/100
79 87195 Albuquerque NM 30/100 33/100
80 87196 Albuquerque NM 30/100 45/100
81 87197 Albuquerque NM 30/100 33/100
82 87198 Albuquerque NM 30/100 33/100
83 87199 Albuquerque NM 30/100 33/100
84 87516 Canones NM 30/100 58/100
85 87319 Mentmore NM 31/100 76/100
86 87532 Espanola NM 31/100 76/100
87 87533 Espanola NM 31/100 59/100
88 87544 Los Alamos NM 31/100 74/100
89 87545 Los Alamos NM 31/100 72/100
90 88061 Silver City NM 31/100 74/100
91 88062 Silver City NM 31/100 72/100
92 87518 Cebolla NM 32/100 35/100
93 87712 Buena Vista NM 32/100 69/100
94 87742 Rociada NM 32/100 66/100
95 87028 La Joya NM 33/100 63/100
96 87043 Placitas NM 33/100 73/100
97 88021 Anthony NM 33/100 80/100
98 87013 Cuba NM 34/100 77/100
99 88220 Carlsbad NM 34/100 70/100
100 88221 Carlsbad NM 34/100 73/100

Methodology

Water system reliability scores (0-100) combine violation frequency, violation recency, resolution rate, and system size. Systems with repeated health-based violations and unresolved issues score lowest. The reliability score focuses specifically on the water utility performance, distinct from the broader Home Safety Score.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-04-13.

Frequently Asked Questions

What does a low water reliability score mean?

A low reliability score (below 50) indicates a water system with frequent violations, poor resolution rates, or recurring compliance issues. These systems may have aging infrastructure, inadequate treatment, or management challenges.

How is reliability different from safety score?

The reliability score focuses specifically on the water utility performance (violations, resolution, compliance). The Home Safety Score is broader, also including lead risk, radon, and flood data. A ZIP code can have a reliable water system but still have high radon or flood risk.

Explore More Rankings

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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