2026 Rankings

Worst ZIP Codes for Lead in Water in Michigan — 2026

Last updated: June 4, 2026

743 ZIP codes ranked by Lead (mg/L) #1: ZIP 49847 (Hermansville, MI) — 79.0 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 743 ZIP codes with data in Michigan, these are the highest-ranked areas for lead (mg/l). See also: National Worst ZIP Codes for Lead in Water | All Michigan Rankings

Statistic Value
ZIP codes ranked 743
Highest value 79.0 ppb
Median value 2.7 ppb
State Michigan

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (mg/L) Safety Score
1 49847 Hermansville MI 79.0 ppb 28/100
2 49111 Eau Claire MI 71.0 ppb 68/100
3 49440 Muskegon MI 50.0 ppb 98/100
4 49441 Muskegon MI 50.0 ppb 89/100
5 49442 Muskegon MI 50.0 ppb 94/100
6 49443 Muskegon MI 50.0 ppb 98/100
7 49444 Muskegon MI 50.0 ppb 89/100
8 49713 Boyne Falls MI 26.0 ppb 50/100
9 49796 Walloon Lake MI 25.0 ppb 50/100
10 48021 Eastpointe MI 22.0 ppb 95/100
11 48080 Saint Clair Shores MI 22.0 ppb 60/100
12 49097 Vicksburg MI 19.5 ppb 43/100
13 48138 Grosse Ile MI 19.2 ppb 60/100
14 49254 Michigan Center MI 19.0 ppb 45/100
15 49855 Marquette MI 19.0 ppb 46/100
16 49706 Alanson MI 18.0 ppb 49/100
17 48071 Madison Heights MI 17.9 ppb 58/100
18 48135 Garden City MI 17.6 ppb 68/100
19 48136 Garden City MI 17.6 ppb 64/100
20 48150 Livonia MI 17.0 ppb 70/100
21 48151 Livonia MI 17.0 ppb 66/100
22 48152 Livonia MI 17.0 ppb 70/100
23 48153 Livonia MI 17.0 ppb 66/100
24 48154 Livonia MI 17.0 ppb 70/100
25 49031 Cassopolis MI 16.0 ppb 44/100
26 48225 Harper Woods MI 15.0 ppb 76/100
27 48624 Gladwin MI 15.0 ppb 64/100
28 48820 Dewitt MI 15.0 ppb 71/100
29 48821 Dimondale MI 15.0 ppb 73/100
30 48901 Lansing MI 15.0 ppb 82/100
31 48906 Lansing MI 15.0 ppb 77/100
32 48908 Lansing MI 15.0 ppb 82/100
33 48909 Lansing MI 15.0 ppb 82/100
34 48910 Lansing MI 15.0 ppb 72/100
35 48911 Lansing MI 15.0 ppb 77/100
36 48912 Lansing MI 15.0 ppb 72/100
37 48913 Lansing MI 15.0 ppb 82/100
38 48915 Lansing MI 15.0 ppb 82/100
39 48916 Lansing MI 15.0 ppb 82/100
40 48917 Lansing MI 15.0 ppb 77/100
41 48918 Lansing MI 15.0 ppb 82/100
42 48919 Lansing MI 15.0 ppb 82/100
43 48921 Lansing MI 15.0 ppb 82/100
44 48922 Lansing MI 15.0 ppb 82/100
45 48924 Lansing MI 15.0 ppb 82/100
46 48929 Lansing MI 15.0 ppb 82/100
47 48930 Lansing MI 15.0 ppb 82/100
48 48933 Lansing MI 15.0 ppb 82/100
49 48937 Lansing MI 15.0 ppb 82/100
50 48950 Lansing MI 15.0 ppb 82/100
51 48951 Lansing MI 15.0 ppb 82/100
52 48956 Lansing MI 15.0 ppb 82/100
53 48980 Lansing MI 15.0 ppb 82/100
54 49960 Rockland MI 15.0 ppb 62/100
55 48732 Essexville MI 14.0 ppb 66/100
56 48759 Sebewaing MI 14.0 ppb 67/100
57 48218 River Rouge MI 13.2 ppb 74/100
58 48120 Dearborn MI 13.0 ppb 93/100
59 48121 Dearborn MI 13.0 ppb 96/100
60 48123 Dearborn MI 13.0 ppb 96/100
61 48124 Dearborn MI 13.0 ppb 83/100
62 48126 Dearborn MI 13.0 ppb 88/100
63 48128 Dearborn MI 13.0 ppb 93/100
64 48141 Inkster MI 13.0 ppb 68/100
65 48201 Detroit MI 13.0 ppb 77/100
66 48202 Detroit MI 13.0 ppb 77/100
67 48204 Detroit MI 13.0 ppb 77/100
68 48205 Detroit MI 13.0 ppb 72/100
69 48206 Detroit MI 13.0 ppb 77/100
70 48207 Detroit MI 13.0 ppb 77/100
71 48208 Detroit MI 13.0 ppb 76/100
72 48209 Detroit MI 13.0 ppb 72/100
73 48210 Detroit MI 13.0 ppb 77/100
74 48211 Detroit MI 13.0 ppb 77/100
75 48212 Hamtramck MI 13.0 ppb 80/100
76 48213 Detroit MI 13.0 ppb 77/100
77 48214 Detroit MI 13.0 ppb 77/100
78 48215 Detroit MI 13.0 ppb 62/100
79 48216 Detroit MI 13.0 ppb 76/100
80 48217 Detroit MI 13.0 ppb 77/100
81 48219 Detroit MI 13.0 ppb 72/100
82 48221 Detroit MI 13.0 ppb 72/100
83 48222 Detroit MI 13.0 ppb 76/100
84 48223 Detroit MI 13.0 ppb 72/100
85 48224 Detroit MI 13.0 ppb 72/100
86 48226 Detroit MI 13.0 ppb 76/100
87 48227 Detroit MI 13.0 ppb 72/100
88 48228 Detroit MI 13.0 ppb 72/100
89 48231 Detroit MI 13.0 ppb 76/100
90 48232 Detroit MI 13.0 ppb 76/100
91 48233 Detroit MI 13.0 ppb 76/100
92 48234 Detroit MI 13.0 ppb 72/100
93 48235 Detroit MI 13.0 ppb 72/100
94 48238 Detroit MI 13.0 ppb 77/100
95 48242 Detroit MI 13.0 ppb 76/100
96 48243 Detroit MI 13.0 ppb 76/100
97 48244 Detroit MI 13.0 ppb 76/100
98 48255 Detroit MI 13.0 ppb 76/100
99 48260 Detroit MI 13.0 ppb 76/100
100 48264 Detroit MI 13.0 ppb 76/100

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: 2026-06-04.

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.

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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