2026 Rankings

ZIP Codes Linked to Water-System PFAS Detections…

Last updated: October 18, 2026

293 ZIP codes ranked by PFAS Status #1: ZIP 10560 (North Salem, NY) - 0.2 ppt

Out of 293 ZIP codes with data in New York, these are the highest-ranked areas for pfas status. See also: National ZIP Codes with PFAS Detections in Water | All New York Rankings

Statistic Value
ZIP codes ranked 293
Highest value 0.2 ppt
Median value 0.0 ppt
State New York

Top 100 Worst ZIP Codes

Rank ZIP Code City State PFAS Status Safety Score
1 10560 North Salem NY 0.2 ppt 83/100
2 10549 Mount Kisco NY 0.1 ppt 82/100
3 14020 Batavia NY 0.1 ppt —
4 11791 Syosset NY 0.1 ppt 99/100
5 10589 Somers NY 0.1 ppt 67/100
6 11701 Amityville NY 0.0 ppt 83/100
7 11702 Babylon NY 0.0 ppt 83/100
8 11703 North Babylon NY 0.0 ppt 83/100
9 11704 West Babylon NY 0.0 ppt 83/100
10 11705 Bayport NY 0.0 ppt 83/100
11 11706 Bay Shore NY 0.0 ppt 83/100
12 11713 Bellport NY 0.0 ppt 83/100
13 11716 Bohemia NY 0.0 ppt —
14 11719 Brookhaven NY 0.0 ppt 83/100
15 11720 Centereach NY 0.0 ppt 83/100
16 11721 Centerport NY 0.0 ppt 82/100
17 11722 Central Islip NY 0.0 ppt 83/100
18 11724 Cold Spring Harbor NY 0.0 ppt 83/100
19 11725 Commack NY 0.0 ppt 82/100
20 11726 Copiague NY 0.0 ppt 83/100
21 11727 Coram NY 0.0 ppt 83/100
22 11729 Deer Park NY 0.0 ppt 83/100
23 11730 East Islip NY 0.0 ppt 83/100
24 11731 East Northport NY 0.0 ppt 82/100
25 11733 East Setauket NY 0.0 ppt 83/100
26 11735 Farmingdale NY 0.0 ppt 83/100
27 11738 Farmingville NY 0.0 ppt 83/100
28 11741 Holbrook NY 0.0 ppt 83/100
29 11742 Holtsville NY 0.0 ppt 83/100
30 11743 Huntington NY 0.0 ppt 82/100
31 11746 Huntington Station NY 0.0 ppt 82/100
32 11749 Islandia NY 0.0 ppt 83/100
33 11751 Islip NY 0.0 ppt 83/100
34 11752 Islip Terrace NY 0.0 ppt 83/100
35 11754 Kings Park NY 0.0 ppt 83/100
36 11755 Lake Grove NY 0.0 ppt 83/100
37 11757 Lindenhurst NY 0.0 ppt 83/100
38 11763 Medford NY 0.0 ppt 83/100
39 11764 Miller Place NY 0.0 ppt 83/100
40 11766 Mount Sinai NY 0.0 ppt 83/100
41 11767 Nesconset NY 0.0 ppt 83/100
42 11768 Northport NY 0.0 ppt 82/100
43 11769 Oakdale NY 0.0 ppt 83/100
44 11770 Ocean Beach NY 0.0 ppt 83/100
45 11772 Patchogue NY 0.0 ppt 83/100
46 11776 Port Jefferson Station NY 0.0 ppt 83/100
47 11777 Port Jefferson NY 0.0 ppt 83/100
48 11778 Rocky Point NY 0.0 ppt 83/100
49 11779 Ronkonkoma NY 0.0 ppt 83/100
50 11780 Saint James NY 0.0 ppt 83/100
51 11782 Sayville NY 0.0 ppt 83/100
52 11784 Selden NY 0.0 ppt 83/100
53 11786 Shoreham NY 0.0 ppt 83/100
54 11787 Smithtown NY 0.0 ppt 83/100
55 11788 Hauppauge NY 0.0 ppt 83/100
56 11790 Stony Brook NY 0.0 ppt 83/100
57 11795 West Islip NY 0.0 ppt 83/100
58 11901 Riverhead NY 0.0 ppt 72/100
59 11934 Center Moriches NY 0.0 ppt 83/100
60 11935 Cutchogue NY 0.0 ppt 83/100
61 11937 East Hampton NY 0.0 ppt 74/100
62 11939 East Marion NY 0.0 ppt 83/100
63 11941 Eastport NY 0.0 ppt 83/100
64 11942 East Quogue NY 0.0 ppt 83/100
65 11944 Greenport NY 0.0 ppt 82/100
66 11949 Manorville NY 0.0 ppt 82/100
67 11950 Mastic NY 0.0 ppt 83/100
68 11952 Mattituck NY 0.0 ppt 83/100
69 11953 Middle Island NY 0.0 ppt 83/100
70 11954 Montauk NY 0.0 ppt 83/100
71 11957 Orient NY 0.0 ppt 83/100
72 11958 Peconic NY 0.0 ppt 83/100
73 11961 Ridge NY 0.0 ppt 83/100
74 11963 Sag Harbor NY 0.0 ppt 83/100
75 11964 Shelter Island NY 0.0 ppt 83/100
76 11965 Shelter Island Heights NY 0.0 ppt 83/100
77 11967 Shirley NY 0.0 ppt 83/100
78 11968 Southampton NY 0.0 ppt 83/100
79 11971 Southold NY 0.0 ppt 82/100
80 11976 Water Mill NY 0.0 ppt 83/100
81 11978 Westhampton Beach NY 0.0 ppt 83/100
82 11980 Yaphank NY 0.0 ppt 83/100
83 11560 Locust Valley NY 0.0 ppt 82/100
84 13602 Fort Drum NY 0.0 ppt 83/100
85 14470 Holley NY 0.0 ppt 79/100
86 11020 Great Neck NY 0.0 ppt 83/100
87 11021 Great Neck NY 0.0 ppt 83/100
88 11023 Great Neck NY 0.0 ppt 83/100
89 11030 Manhasset NY 0.0 ppt 67/100
90 11040 New Hyde Park NY 0.0 ppt 74/100
91 11042 New Hyde Park NY 0.0 ppt —
92 11507 Albertson NY 0.0 ppt 67/100
93 11576 Roslyn NY 0.0 ppt 67/100
94 11596 Williston Park NY 0.0 ppt 83/100
95 10918 Chester NY 0.0 ppt 45/100
96 10950 Monroe NY 0.0 ppt 33/100
97 14892 Waverly NY 0.0 ppt —
98 14424 Canandaigua NY 0.0 ppt —

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: 2026-10-18.

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.

Explore More Rankings

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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