PFAS Detections in Oregon ZIP Codes — 2026

Out of 24 ZIP codes with data in Oregon, these are the highest-ranked areas for pfas status. See also: National ZIP Codes with PFAS Detections in Water | All Oregon Rankings

Statistic	Value
ZIP codes ranked	24
Highest value	0.0 ppt
Median value	0.0 ppt
State	Oregon

Top 24 Worst ZIP Codes

Rank	ZIP Code	City	State	Safety Score
1	97140	Sherwood	OR	77/100
2	97530	Jacksonville	OR	81/100
3	97477	Springfield	OR	81/100
4	97478	Springfield	OR	83/100
5	97051	Saint Helens	OR	76/100
6	97838	Hermiston	OR	60/100
7	97038	Molalla	OR	83/100
8	97601	Klamath Falls	OR	50/100
9	97603	Klamath Falls	OR	50/100
10	97701	Bend	OR	74/100
11	97702	Bend	OR	75/100
12	97703	Bend	OR	73/100
13	97023	Estacada	OR	83/100
14	97206	Portland	OR	76/100
15	97222	Portland	OR	74/100
16	97115	Dundee	OR	—
17	97132	Newberg	OR	—
18	97801	Pendleton	OR	81/100
19	97015	Clackamas	OR	74/100
20	97086	Happy Valley	OR	76/100
21	97089	Damascus	OR	80/100
22	97236	Portland	OR	66/100
23	97303	Salem	OR	99/100
24	97351	Independence	OR	—

Methodology

PFAS detection data comes from EPA UCMR5 monitoring, state-level testing programs, and Consumer Confidence Reports. ZIP codes are ranked by maximum PFAS concentration detected. The EPA has set MCLs of 4 ppt for PFOA and PFOS individually. PFAS are persistent chemicals that do not break down in the environment.

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: 2026-08-31.

Frequently Asked Questions

What are PFAS?

PFAS (per- and polyfluoroalkyl substances) are synthetic chemicals used in non-stick coatings, firefighting foam, and food packaging since the 1940s. They are called "forever chemicals" because they do not break down naturally. PFAS are linked to cancer, liver damage, thyroid disease, and immune system suppression.

How can I remove PFAS from my water?

Reverse osmosis (RO) and granular activated carbon (GAC) filters are effective at removing most PFAS from drinking water. NSF/ANSI 53 or 58 certified filters are recommended. Boiling water does NOT remove PFAS.