2026 Rankings

Worst ZIP Codes for Lead in Water in Utah — 2026

Last updated: June 4, 2026

280 ZIP codes ranked by Lead (mg/L) #1: ZIP 84015 (Clearfield, UT) — 70.0 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 280 ZIP codes with data in Utah, these are the highest-ranked areas for lead (mg/l). See also: National Worst ZIP Codes for Lead in Water | All Utah Rankings

Statistic Value
ZIP codes ranked 280
Highest value 70.0 ppb
Median value 2.9 ppb
State Utah

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (mg/L) Safety Score
1 84015 Clearfield UT 70.0 ppb 63/100
2 84016 Clearfield UT 70.0 ppb 53/100
3 84075 Syracuse UT 70.0 ppb 83/100
4 84089 Clearfield UT 70.0 ppb 53/100
5 84335 Smithfield UT 46.0 ppb 58/100
6 84628 Eureka UT 15.3 ppb 54/100
7 84746 Leeds UT 13.9 ppb 57/100
8 84328 Paradise UT 11.3 ppb 63/100
9 84715 Bicknell UT 11.2 ppb 59/100
10 84317 Huntsville UT 11.0 ppb 43/100
11 84309 Deweyville UT 8.0 ppb 70/100
12 84633 Goshen UT 7.7 ppb 70/100
13 84656 Scipio UT 7.6 ppb 73/100
14 84010 Bountiful UT 7.2 ppb 72/100
15 84011 Bountiful UT 7.2 ppb 81/100
16 84076 Tridell UT 7.1 ppb 59/100
17 84314 Honeyville UT 6.7 ppb 74/100
18 84761 Parowan UT 6.7 ppb 65/100
19 84713 Beaver UT 6.4 ppb 63/100
20 84054 North Salt Lake UT 6.3 ppb 79/100
21 84742 Kanarraville UT 6.0 ppb 76/100
22 84775 Torrey UT 5.8 ppb 76/100
23 84061 Peoa UT 5.5 ppb 80/100
24 84782 Veyo UT 5.4 ppb 81/100
25 84066 Roosevelt UT 5.3 ppb 68/100
26 84053 Neola UT 4.7 ppb 66/100
27 84082 Wallsburg UT 4.6 ppb 82/100
28 84627 Ephraim UT 4.5 ppb 70/100
29 84062 Pleasant Grove UT 4.4 ppb 80/100
30 84601 Provo UT 4.3 ppb 74/100
31 84602 Provo UT 4.3 ppb 78/100
32 84603 Provo UT 4.3 ppb 79/100
33 84604 Provo UT 4.3 ppb 74/100
34 84605 Provo UT 4.3 ppb 78/100
35 84606 Provo UT 4.3 ppb 79/100
36 84712 Antimony UT 4.3 ppb 82/100
37 84009 South Jordan UT 4.2 ppb 77/100
38 84095 South Jordan UT 4.2 ppb 77/100
39 84001 Altamont UT 4.1 ppb 68/100
40 84040 Layton UT 4.1 ppb 83/100
41 84041 Layton UT 4.1 ppb 78/100
42 84080 Vernon UT 4.0 ppb 81/100
43 84326 Millville UT 4.0 ppb 82/100
44 84096 Herriman UT 3.8 ppb 81/100
45 84312 Garland UT 3.8 ppb 75/100
46 84101 Salt Lake City UT 3.8 ppb 83/100
47 84102 Salt Lake City UT 3.8 ppb 83/100
48 84103 Salt Lake City UT 3.8 ppb 83/100
49 84104 Salt Lake City UT 3.8 ppb 78/100
50 84105 Salt Lake City UT 3.8 ppb 78/100
51 84106 Salt Lake City UT 3.8 ppb 78/100
52 84107 Salt Lake City UT 3.8 ppb 73/100
53 84108 Salt Lake City UT 3.8 ppb 78/100
54 84109 Salt Lake City UT 3.8 ppb 83/100
55 84110 Salt Lake City UT 3.8 ppb 83/100
56 84111 Salt Lake City UT 3.8 ppb 78/100
57 84112 Salt Lake City UT 3.8 ppb 83/100
58 84113 Salt Lake City UT 3.8 ppb 83/100
59 84114 Salt Lake City UT 3.8 ppb 83/100
60 84115 Salt Lake City UT 3.8 ppb 83/100
61 84116 Salt Lake City UT 3.8 ppb 73/100
62 84117 Salt Lake City UT 3.8 ppb 78/100
63 84119 Salt Lake City UT 3.8 ppb 83/100
64 84120 Salt Lake City UT 3.8 ppb 83/100
65 84121 Salt Lake City UT 3.8 ppb 78/100
66 84122 Salt Lake City UT 3.8 ppb 83/100
67 84124 Salt Lake City UT 3.8 ppb 83/100
68 84125 Salt Lake City UT 3.8 ppb 83/100
69 84126 Salt Lake City UT 3.8 ppb 83/100
70 84127 Salt Lake City UT 3.8 ppb 83/100
71 84130 Salt Lake City UT 3.8 ppb 83/100
72 84131 Salt Lake City UT 3.8 ppb 83/100
73 84132 Salt Lake City UT 3.8 ppb 83/100
74 84133 Salt Lake City UT 3.8 ppb 83/100
75 84134 Salt Lake City UT 3.8 ppb 83/100
76 84136 Salt Lake City UT 3.8 ppb 83/100
77 84138 Salt Lake City UT 3.8 ppb 83/100
78 84139 Salt Lake City UT 3.8 ppb 83/100
79 84141 Salt Lake City UT 3.8 ppb 83/100
80 84143 Salt Lake City UT 3.8 ppb 83/100
81 84144 Salt Lake City UT 3.8 ppb 83/100
82 84145 Salt Lake City UT 3.8 ppb 83/100
83 84147 Salt Lake City UT 3.8 ppb 83/100
84 84148 Salt Lake City UT 3.8 ppb 83/100
85 84150 Salt Lake City UT 3.8 ppb 83/100
86 84151 Salt Lake City UT 3.8 ppb 83/100
87 84152 Salt Lake City UT 3.8 ppb 83/100
88 84157 Salt Lake City UT 3.8 ppb 83/100
89 84158 Salt Lake City UT 3.8 ppb 83/100
90 84165 Salt Lake City UT 3.8 ppb 83/100
91 84170 Salt Lake City UT 3.8 ppb 83/100
92 84171 Salt Lake City UT 3.8 ppb 83/100
93 84180 Salt Lake City UT 3.8 ppb 83/100
94 84184 Salt Lake City UT 3.8 ppb 83/100
95 84189 Salt Lake City UT 3.8 ppb 83/100
96 84190 Salt Lake City UT 3.8 ppb 83/100
97 84199 Salt Lake City UT 3.8 ppb 83/100
98 84305 Clarkston UT 3.7 ppb 81/100
99 84310 Eden UT 3.7 ppb 79/100
100 84338 Trenton UT 3.6 ppb 82/100

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.

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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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