ZIP Codes with PFAS Detections in Water

Out of 8,398 ZIP codes with data across all 50 states, these are the highest-ranked areas for pfas status. Each ZIP links to a full safety report with water quality, lead, radon, and flood data.

Statistic	Value
ZIP codes ranked	8,398
Highest value	1.7 ppt
Median value	0.0 ppt

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	PFAS Status	Safety Score
1	55071	Saint Paul Park	MN	1.7 ppt	66/100
2	55128	Saint Paul	MN	1.3 ppt	64/100
3	77478	Sugar Land	TX	0.7 ppt	—
4	77479	Sugar Land	TX	0.7 ppt	—
5	77498	Sugar Land	TX	0.7 ppt	—
6	52732	Clinton	IA	0.6 ppt	50/100
7	78629	Gonzales	TX	0.6 ppt	—
8	55055	Newport	MN	0.6 ppt	50/100
9	27856	Nashville	NC	0.5 ppt	—
10	75028	Flower Mound	TX	0.4 ppt	79/100
11	75077	Lewisville	TX	0.4 ppt	89/100
12	76226	Argyle	TX	0.4 ppt	83/100
13	55125	Saint Paul	MN	0.4 ppt	47/100
14	55033	Hastings	MN	0.4 ppt	49/100
15	76520	Cameron	TX	0.3 ppt	—
16	30139	Fairmount	GA	0.3 ppt	—
17	30701	Calhoun	GA	0.3 ppt	—
18	30733	Plainville	GA	0.3 ppt	—
19	30735	Resaca	GA	0.3 ppt	—
20	30746	Sugar Valley	GA	0.3 ppt	—
21	54021	Prescott	WI	0.3 ppt	—
22	92382	Running Springs	CA	0.2 ppt	57/100
23	19426	Collegeville	PA	0.2 ppt	33/100
24	62656	Lincoln	IL	0.2 ppt	—
25	18969	Telford	PA	0.2 ppt	43/100
26	32501	Pensacola	FL	0.2 ppt	83/100
27	32502	Pensacola	FL	0.2 ppt	83/100
28	32503	Pensacola	FL	0.2 ppt	83/100
29	32504	Pensacola	FL	0.2 ppt	83/100
30	32505	Pensacola	FL	0.2 ppt	83/100
31	32506	Pensacola	FL	0.2 ppt	82/100
32	32507	Pensacola	FL	0.2 ppt	82/100
33	32509	Pensacola	FL	0.2 ppt	79/100
34	32511	Pensacola	FL	0.2 ppt	82/100
35	32514	Pensacola	FL	0.2 ppt	83/100
36	32526	Pensacola	FL	0.2 ppt	79/100
37	32533	Cantonment	FL	0.2 ppt	82/100
38	32534	Pensacola	FL	0.2 ppt	83/100
39	32561	Gulf Breeze	FL	0.2 ppt	83/100
40	36561	Orange Beach	AL	0.2 ppt	72/100
41	44430	Leavittsburg	OH	0.2 ppt	65/100
42	44444	Newton Falls	OH	0.2 ppt	67/100
43	44481	Warren	OH	0.2 ppt	63/100
44	55016	Cottage Grove	MN	0.2 ppt	67/100
45	77515	Angleton	TX	0.2 ppt	83/100
46	77459	Missouri City	TX	0.2 ppt	—
47	33031	Homestead	FL	0.2 ppt	64/100
48	33032	Homestead	FL	0.2 ppt	66/100
49	33033	Homestead	FL	0.2 ppt	64/100
50	33109	Miami Beach	FL	0.2 ppt	66/100
51	33122	Miami	FL	0.2 ppt	64/100
52	33125	Miami	FL	0.2 ppt	66/100
53	33126	Miami	FL	0.2 ppt	64/100
54	33127	Miami	FL	0.2 ppt	66/100
55	33128	Miami	FL	0.2 ppt	66/100
56	33129	Miami	FL	0.2 ppt	66/100
57	33130	Miami	FL	0.2 ppt	66/100
58	33131	Miami	FL	0.2 ppt	66/100
59	33132	Miami	FL	0.2 ppt	66/100
60	33133	Miami	FL	0.2 ppt	66/100
61	33134	Miami	FL	0.2 ppt	66/100
62	33135	Miami	FL	0.2 ppt	66/100
63	33136	Miami	FL	0.2 ppt	66/100
64	33137	Miami	FL	0.2 ppt	66/100
65	33138	Miami	FL	0.2 ppt	65/100
66	33139	Miami Beach	FL	0.2 ppt	66/100
67	33140	Miami Beach	FL	0.2 ppt	67/100
68	33141	Miami Beach	FL	0.2 ppt	65/100
69	33142	Miami	FL	0.2 ppt	63/100
70	33143	Miami	FL	0.2 ppt	66/100
71	33144	Miami	FL	0.2 ppt	62/100
72	33145	Miami	FL	0.2 ppt	66/100
73	33146	Miami	FL	0.2 ppt	66/100
74	33147	Miami	FL	0.2 ppt	62/100
75	33149	Key Biscayne	FL	0.2 ppt	66/100
76	33150	Miami	FL	0.2 ppt	65/100
77	33154	Miami Beach	FL	0.2 ppt	60/100
78	33155	Miami	FL	0.2 ppt	62/100
79	33156	Miami	FL	0.2 ppt	66/100
80	33157	Miami	FL	0.2 ppt	66/100
81	33158	Miami	FL	0.2 ppt	66/100
82	33160	North Miami Beach	FL	0.2 ppt	63/100
83	33161	Miami	FL	0.2 ppt	63/100
84	33162	Miami	FL	0.2 ppt	63/100
85	33165	Miami	FL	0.2 ppt	66/100
86	33166	Miami	FL	0.2 ppt	61/100
87	33167	Miami	FL	0.2 ppt	62/100
88	33168	Miami	FL	0.2 ppt	62/100
89	33169	Miami	FL	0.2 ppt	65/100
90	33170	Miami	FL	0.2 ppt	62/100
91	33172	Miami	FL	0.2 ppt	66/100
92	33173	Miami	FL	0.2 ppt	66/100
93	33174	Miami	FL	0.2 ppt	66/100
94	33175	Miami	FL	0.2 ppt	66/100
95	33176	Miami	FL	0.2 ppt	66/100
96	33177	Miami	FL	0.2 ppt	66/100
97	33178	Miami	FL	0.2 ppt	64/100
98	33179	Miami	FL	0.2 ppt	65/100
99	33180	Miami	FL	0.2 ppt	65/100

Rankings by State

State	ZIP Codes Ranked
Texas	979
California	612
Florida	550
Ohio	465
Pennsylvania	416
New Jersey	403
North Carolina	339
Illinois	310
Missouri	303
New York	293
Alabama	268
Kentucky	256
Tennessee	240
Georgia	211
Massachusetts	208
Virginia	195
Indiana	191
Arizona	188
South Carolina	184
Maryland	169
Oklahoma	161
Washington	145
Connecticut	138
Louisiana	130
Minnesota	115
Iowa	97
Kansas	97
Michigan	83
Wisconsin	75
Colorado	74
West Virginia	69
Nevada	62
Utah	40
Arkansas	37
District of Columbia	36
Delaware	34
North Dakota	30
Rhode Island	26
New Hampshire	26
Oregon	24
Hawaii	22
Alaska	15
Mississippi	13
New Mexico	13
Maine	13
South Dakota	12
Idaho	9
Nebraska	9
Montana	5
Wyoming	4
Vermont	4

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.

ZIP Codes with PFAS Detections in Water — 2026 Rankings