2026 Rankings

ZIP Codes Ranked by Water-System Lead Results…

Last updated: October 14, 2026

192 ZIP codes ranked by Lead (ppb) #1: ZIP 97009 (Boring, OR) - 13.0 ppb

Out of 192 ZIP codes with data in Oregon, these are the highest-ranked areas for lead (ppb). See also: National Worst ZIP Codes for Lead in Water | All Oregon Rankings

Statistic Value
ZIP codes ranked 192
Highest value 13.0 ppb
Median value 3.3 ppb
State Oregon

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (ppb) Safety Score
1 97009 Boring OR 13.0 ppb 90/100
2 97055 Sandy OR 13.0 ppb 94/100
3 97465 Port Orford OR 10.3 ppb —
4 97444 Gold Beach OR 8.1 ppb —
5 97424 Cottage Grove OR 8.0 ppb 97/100
6 97434 Dorena OR 8.0 ppb —
7 97002 Aurora OR 7.6 ppb —
8 97070 Wilsonville OR 7.6 ppb 99/100
9 97107 Bay City OR 7.0 ppb —
10 97118 Garibaldi OR 7.0 ppb —
11 97136 Rockaway Beach OR 7.0 ppb —
12 97496 Winston OR 7.0 ppb —
13 97024 Fairview OR 6.9 ppb 81/100
14 97117 Gales Creek OR 6.4 ppb 75/100
15 97119 Gaston OR 6.4 ppb —
16 97014 Cascade Locks OR 6.2 ppb —
17 97019 Corbett OR 6.2 ppb 83/100
18 97325 Aumsville OR 6.0 ppb 98/100
19 97383 Stayton OR 6.0 ppb 98/100
20 97385 Sublimity OR 6.0 ppb —
21 97415 Brookings OR 6.0 ppb —
22 97011 Brightwood OR 5.7 ppb —
23 97049 Rhododendron OR 5.7 ppb —
24 97067 Welches OR 5.7 ppb —
25 97042 Mulino OR 5.0 ppb —
26 97457 Myrtle Creek OR 5.0 ppb —
27 97420 Coos Bay OR 5.0 ppb —
28 97459 North Bend OR 5.0 ppb —
29 97062 Tualatin OR 4.9 ppb 82/100
30 97201 Portland OR 4.9 ppb 83/100
31 97202 Portland OR 4.9 ppb 77/100
32 97203 Portland OR 4.9 ppb 83/100
33 97204 Portland OR 4.9 ppb 83/100
34 97205 Portland OR 4.9 ppb 83/100
35 97206 Portland OR 4.9 ppb 76/100
36 97209 Portland OR 4.9 ppb 83/100
37 97210 Portland OR 4.9 ppb 83/100
38 97211 Portland OR 4.9 ppb 83/100
39 97212 Portland OR 4.9 ppb 83/100
40 97213 Portland OR 4.9 ppb 83/100
41 97214 Portland OR 4.9 ppb 83/100
42 97215 Portland OR 4.9 ppb 83/100
43 97216 Portland OR 4.9 ppb 83/100
44 97217 Portland OR 4.9 ppb 83/100
45 97218 Portland OR 4.9 ppb 83/100
46 97219 Portland OR 4.9 ppb 79/100
47 97220 Portland OR 4.9 ppb 83/100
48 97221 Portland OR 4.9 ppb 82/100
49 97225 Portland OR 4.9 ppb 82/100
50 97227 Portland OR 4.9 ppb 83/100
51 97230 Portland OR 4.9 ppb 81/100
52 97231 Portland OR 4.9 ppb 73/100
53 97232 Portland OR 4.9 ppb 83/100
54 97233 Portland OR 4.9 ppb 83/100
55 97236 Portland OR 4.9 ppb 66/100
56 97239 Portland OR 4.9 ppb 83/100
57 97266 Portland OR 4.9 ppb 83/100
58 97439 Florence OR 4.8 ppb 100/100
59 97480 Swisshome OR 4.8 ppb —
60 97498 Yachats OR 4.8 ppb —
61 97003 Beaverton OR 4.5 ppb 83/100
62 97005 Beaverton OR 4.5 ppb 82/100
63 97006 Beaverton OR 4.5 ppb 83/100
64 97007 Beaverton OR 4.5 ppb 82/100
65 97078 First Consumers Nat Bank OR 4.5 ppb 83/100
66 97223 Portland OR 4.5 ppb 82/100
67 97229 Portland OR 4.5 ppb 83/100
68 97317 Salem OR 4.5 ppb 88/100
69 97366 South Beach OR 4.5 ppb —
70 97376 Seal Rock OR 4.5 ppb —
71 97390 Tidewater OR 4.5 ppb —
72 97401 Eugene OR 4.5 ppb 100/100
73 97402 Eugene OR 4.5 ppb 99/100
74 97403 Eugene OR 4.5 ppb 100/100
75 97404 Eugene OR 4.5 ppb 100/100
76 97405 Eugene OR 4.5 ppb 100/100
77 97408 Eugene OR 4.5 ppb 96/100
78 97734 Culver OR 4.5 ppb 83/100
79 97760 Terrebonne OR 4.5 ppb 99/100
80 97423 Coquille OR 4.4 ppb —
81 97458 Myrtle Point OR 4.4 ppb —
82 97338 Dallas OR 4.3 ppb —
83 97371 Rickreall OR 4.3 ppb —
84 97028 Government Camp OR 4.1 ppb —
85 97818 Boardman OR 4.0 ppb —
86 97844 Irrigon OR 4.0 ppb —
87 97355 Lebanon OR 3.7 ppb 84/100
88 97032 Hubbard OR 3.5 ppb 88/100
89 97520 Ashland OR 3.4 ppb 97/100
90 97426 Creswell OR 3.4 ppb 98/100
91 97026 Gervais OR 3.4 ppb —
92 97030 Gresham OR 3.4 ppb 78/100
93 97071 Woodburn OR 3.4 ppb 91/100
94 97080 Gresham OR 3.4 ppb 78/100
95 97027 Gladstone OR 3.3 ppb 90/100
96 97031 Hood River OR 3.3 ppb —
97 97041 Mount Hood Parkdale OR 3.3 ppb —
98 97370 Philomath OR 3.3 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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