2026 Rankings

ZIP Codes Ranked by Water-System Lead Results…

Last updated: October 14, 2026

83 ZIP codes ranked by Lead (ppb) #1: ZIP 89429 (Silver Springs, NV) - 8.0 ppb
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 83 ZIP codes with data in Nevada, these are the highest-ranked areas for lead (ppb). See also: National Worst ZIP Codes for Lead in Water | All Nevada Rankings

Statistic Value
ZIP codes ranked 83
Highest value 8.0 ppb
Median value 2.1 ppb
State Nevada

Top 83 Worst ZIP Codes

Rank ZIP Code City State Lead (ppb) Safety Score
1 89429 Silver Springs NV 8.0 ppb —
2 89423 Minden NV 6.0 ppb 67/100
3 89002 Henderson NV 3.8 ppb 92/100
4 89011 Henderson NV 3.8 ppb 92/100
5 89012 Henderson NV 3.8 ppb 92/100
6 89014 Henderson NV 3.8 ppb 92/100
7 89015 Henderson NV 3.8 ppb 92/100
8 89044 Henderson NV 3.8 ppb 92/100
9 89052 Henderson NV 3.8 ppb 92/100
10 89054 Sloan NV 3.8 ppb —
11 89074 Henderson NV 3.8 ppb 92/100
12 89801 Elko NV 3.0 ppb 65/100
13 89701 Carson City NV 2.7 ppb —
14 89703 Carson City NV 2.7 ppb —
15 89706 Carson City NV 2.7 ppb —
16 89005 Boulder City NV 2.4 ppb 92/100
17 89101 Las Vegas NV 2.1 ppb 92/100
18 89102 Las Vegas NV 2.1 ppb 92/100
19 89103 Las Vegas NV 2.1 ppb 92/100
20 89104 Las Vegas NV 2.1 ppb 92/100
21 89106 Las Vegas NV 2.1 ppb 92/100
22 89107 Las Vegas NV 2.1 ppb 91/100
23 89108 Las Vegas NV 2.1 ppb 92/100
24 89109 Las Vegas NV 2.1 ppb 92/100
25 89110 Las Vegas NV 2.1 ppb 92/100
26 89113 Las Vegas NV 2.1 ppb 92/100
27 89117 Las Vegas NV 2.1 ppb 92/100
28 89118 Las Vegas NV 2.1 ppb 92/100
29 89119 Las Vegas NV 2.1 ppb 92/100
30 89120 Las Vegas NV 2.1 ppb 92/100
31 89121 Las Vegas NV 2.1 ppb 91/100
32 89122 Las Vegas NV 2.1 ppb 92/100
33 89123 Las Vegas NV 2.1 ppb 92/100
34 89124 Las Vegas NV 2.1 ppb 92/100
35 89128 Las Vegas NV 2.1 ppb 92/100
36 89129 Las Vegas NV 2.1 ppb 92/100
37 89130 Las Vegas NV 2.1 ppb 92/100
38 89131 Las Vegas NV 2.1 ppb 92/100
39 89134 Las Vegas NV 2.1 ppb 92/100
40 89135 Las Vegas NV 2.1 ppb 92/100
41 89138 Las Vegas NV 2.1 ppb 92/100
42 89139 Las Vegas NV 2.1 ppb 92/100
43 89141 Las Vegas NV 2.1 ppb 92/100
44 89142 Las Vegas NV 2.1 ppb 92/100
45 89143 Las Vegas NV 2.1 ppb 92/100
46 89144 Las Vegas NV 2.1 ppb 92/100
47 89145 Las Vegas NV 2.1 ppb 92/100
48 89146 Las Vegas NV 2.1 ppb 92/100
49 89147 Las Vegas NV 2.1 ppb 92/100
50 89148 Las Vegas NV 2.1 ppb 92/100
51 89149 Las Vegas NV 2.1 ppb 92/100
52 89156 Las Vegas NV 2.1 ppb 92/100
53 89158 Las Vegas NV 2.1 ppb 92/100
54 89161 Las Vegas NV 2.1 ppb —
55 89166 Las Vegas NV 2.1 ppb 92/100
56 89169 Las Vegas NV 2.1 ppb 92/100
57 89178 Las Vegas NV 2.1 ppb —
58 89179 Las Vegas NV 2.1 ppb 92/100
59 89183 Las Vegas NV 2.1 ppb 92/100
60 89040 Overton NV 2.0 ppb 91/100
61 89406 Fallon NV 2.0 ppb 83/100
62 89433 Sun Valley NV 2.0 ppb 67/100
63 89029 Laughlin NV 1.9 ppb 92/100
64 89447 Yerington NV 1.8 ppb 62/100
65 89410 Gardnerville NV 1.7 ppb 57/100
66 89301 Ely NV 1.6 ppb 66/100
67 89413 Glenbrook NV 1.5 ppb —
68 89448 Zephyr Cove NV 1.5 ppb —
69 89451 Incline Village NV 1.4 ppb 82/100
70 89030 North Las Vegas NV 1.4 ppb 92/100
71 89031 North Las Vegas NV 1.4 ppb 92/100
72 89032 North Las Vegas NV 1.4 ppb 92/100
73 89081 North Las Vegas NV 1.4 ppb 91/100
74 89084 North Las Vegas NV 1.4 ppb 92/100
75 89085 North Las Vegas NV 1.4 ppb 92/100
76 89086 North Las Vegas NV 1.4 ppb 92/100
77 89115 Las Vegas NV 1.4 ppb 91/100
78 89191 Nellis Afb NV 1.4 ppb 92/100
79 89815 Spring Creek NV 1.1 ppb 83/100
80 89449 Stateline NV 1.0 ppb 50/100
81 89403 Dayton NV 0.8 ppb 67/100
82 89428 Silver City NV 0.8 ppb —
83 89061 Pahrump NV 0.6 ppb —

Methodology

Lead rankings are based on the 90th percentile lead testing value (PB90) reported by water systems under the Lead and Copper Rule. When CCR data is unavailable, EPA SDWIS lead sampling data is used. The EPA action level for lead is 15 ppb (0.015 mg/L). There is no safe level of lead exposure.

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: 2026-10-14.

Frequently Asked Questions

What is a dangerous lead level in water?

The EPA action level is 15 parts per billion (ppb). The American Academy of Pediatrics recommends no more than 1 ppb for school drinking water. There is no safe level of lead exposure for children.

How is lead measured in water?

Water systems collect samples from homes with known lead service lines or lead solder. The 90th percentile value (PB90) means 90% of samples tested below that level. If PB90 exceeds 15 ppb, the system must take corrective action.

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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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