PFAS Detections in Oregon ZIP Codes — 2026

Out of 25 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	25
Highest value	0.0 ppt
Median value	0.0 ppt
State	Oregon

Top 25 Worst ZIP Codes

Rank	ZIP Code	City	State	Safety Score
1	97140	Sherwood	OR	79/100
2	97530	Jacksonville	OR	89/100
3	97477	Springfield	OR	94/100
4	97478	Springfield	OR	84/100
5	97051	Saint Helens	OR	55/100
6	97838	Hermiston	OR	75/100
7	97038	Molalla	OR	78/100
8	97601	Klamath Falls	OR	79/100
9	97603	Klamath Falls	OR	78/100
10	97701	Bend	OR	92/100
11	97702	Bend	OR	92/100
12	97703	Bend	OR	92/100
13	97023	Estacada	OR	93/100
14	97454	Marcola	OR	91/100
15	97206	Portland	OR	94/100
16	97222	Portland	OR	84/100
17	97115	Dundee	OR	79/100
18	97132	Newberg	OR	69/100
19	97801	Pendleton	OR	74/100
20	97015	Clackamas	OR	86/100
21	97086	Happy Valley	OR	92/100
22	97089	Damascus	OR	89/100
23	97236	Portland	OR	77/100
24	97303	Salem	OR	85/100
25	97351	Independence	OR	95/100

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: 2026-06-04.

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.