PFAS Detections in Hawaii ZIP Codes — 2026

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

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

Top 24 Worst ZIP Codes

Rank	ZIP Code	City	State	Safety Score
1	96706	Ewa Beach	HI	60/100
2	96707	Kapolei	HI	73/100
3	96759	Kunia	HI	88/100
4	96792	Waianae	HI	55/100
5	96797	Waipahu	HI	87/100
6	96701	Aiea	HI	82/100
7	96717	Hauula	HI	60/100
8	96730	Kaaawa	HI	60/100
9	96734	Kailua	HI	55/100
10	96744	Kaneohe	HI	82/100
11	96762	Laie	HI	77/100
12	96782	Pearl City	HI	82/100
13	96795	Waimanalo	HI	65/100
14	96813	Honolulu	HI	82/100
15	96814	Honolulu	HI	87/100
16	96815	Honolulu	HI	77/100
17	96816	Honolulu	HI	77/100
18	96817	Honolulu	HI	82/100
19	96818	Honolulu	HI	87/100
20	96819	Honolulu	HI	77/100
21	96821	Honolulu	HI	72/100
22	96822	Honolulu	HI	77/100
23	96825	Honolulu	HI	77/100
24	96826	Honolulu	HI	77/100

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.