ZIP Codes with PFAS Detections in Water

Out of 9,785 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	9,785
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	63/100
2	55128	Saint Paul	MN	1.3 ppt	53/100
3	77478	Sugar Land	TX	0.7 ppt	78/100
4	77479	Sugar Land	TX	0.7 ppt	78/100
5	77487	Sugar Land	TX	0.7 ppt	93/100
6	77496	Sugar Land	TX	0.7 ppt	93/100
7	77498	Sugar Land	TX	0.7 ppt	78/100
8	52732	Clinton	IA	0.6 ppt	60/100
9	52736	Clinton	IA	0.6 ppt	66/100
10	78629	Gonzales	TX	0.6 ppt	78/100
11	55055	Newport	MN	0.6 ppt	65/100
12	27816	Castalia	NC	0.5 ppt	66/100
13	27856	Nashville	NC	0.5 ppt	74/100
14	75028	Flower Mound	TX	0.4 ppt	89/100
15	75077	Lewisville	TX	0.4 ppt	81/100
16	76226	Argyle	TX	0.4 ppt	83/100
17	55125	Saint Paul	MN	0.4 ppt	53/100
18	55033	Hastings	MN	0.4 ppt	59/100
19	76520	Cameron	TX	0.3 ppt	70/100
20	30139	Fairmount	GA	0.3 ppt	86/100
21	30701	Calhoun	GA	0.3 ppt	90/100
22	30732	Oakman	GA	0.3 ppt	73/100
23	30733	Plainville	GA	0.3 ppt	63/100
24	30734	Ranger	GA	0.3 ppt	73/100
25	30735	Resaca	GA	0.3 ppt	66/100
26	30746	Sugar Valley	GA	0.3 ppt	73/100
27	54021	Prescott	WI	0.3 ppt	61/100
28	00795	Ponce Municipio County	PR	0.3 ppt	—
29	91963	Potrero	CA	0.3 ppt	55/100
30	92382	Running Springs	CA	0.2 ppt	74/100
31	19426	Collegeville	PA	0.2 ppt	42/100
32	62656	Lincoln	IL	0.2 ppt	59/100
33	18969	Telford	PA	0.2 ppt	67/100
34	32501	Pensacola	FL	0.2 ppt	66/100
35	32502	Pensacola	FL	0.2 ppt	66/100
36	32503	Pensacola	FL	0.2 ppt	66/100
37	32504	Pensacola	FL	0.2 ppt	71/100
38	32505	Pensacola	FL	0.2 ppt	66/100
39	32506	Pensacola	FL	0.2 ppt	61/100
40	32507	Pensacola	FL	0.2 ppt	61/100
41	32508	Pensacola	FL	0.2 ppt	81/100
42	32509	Pensacola	FL	0.2 ppt	83/100
43	32511	Pensacola	FL	0.2 ppt	81/100
44	32514	Pensacola	FL	0.2 ppt	66/100
45	32526	Pensacola	FL	0.2 ppt	66/100
46	32533	Cantonment	FL	0.2 ppt	66/100
47	32534	Pensacola	FL	0.2 ppt	71/100
48	32561	Gulf Breeze	FL	0.2 ppt	73/100
49	32562	Gulf Breeze	FL	0.2 ppt	88/100
50	36561	Orange Beach	AL	0.2 ppt	72/100
51	44430	Leavittsburg	OH	0.2 ppt	50/100
52	44444	Newton Falls	OH	0.2 ppt	72/100
53	44481	Warren	OH	0.2 ppt	74/100
54	55016	Cottage Grove	MN	0.2 ppt	70/100
55	77515	Angleton	TX	0.2 ppt	66/100
56	77459	Missouri City	TX	0.2 ppt	74/100
57	33031	Homestead	FL	0.2 ppt	54/100
58	33032	Homestead	FL	0.2 ppt	54/100
59	33033	Homestead	FL	0.2 ppt	49/100
60	33101	Miami	FL	0.2 ppt	59/100
61	33109	Miami Beach	FL	0.2 ppt	64/100
62	33116	Miami	FL	0.2 ppt	69/100
63	33122	Miami	FL	0.2 ppt	59/100
64	33125	Miami	FL	0.2 ppt	54/100
65	33126	Miami	FL	0.2 ppt	54/100
66	33127	Miami	FL	0.2 ppt	64/100
67	33128	Miami	FL	0.2 ppt	64/100
68	33129	Miami	FL	0.2 ppt	59/100
69	33130	Miami	FL	0.2 ppt	59/100
70	33131	Miami	FL	0.2 ppt	59/100
71	33132	Miami	FL	0.2 ppt	59/100
72	33133	Miami	FL	0.2 ppt	49/100
73	33134	Miami	FL	0.2 ppt	59/100
74	33135	Miami	FL	0.2 ppt	59/100
75	33136	Miami	FL	0.2 ppt	59/100
76	33137	Miami	FL	0.2 ppt	54/100
77	33138	Miami	FL	0.2 ppt	54/100
78	33139	Miami Beach	FL	0.2 ppt	49/100
79	33140	Miami Beach	FL	0.2 ppt	49/100
80	33141	Miami Beach	FL	0.2 ppt	49/100
81	33142	Miami	FL	0.2 ppt	54/100
82	33143	Miami	FL	0.2 ppt	54/100
83	33144	Miami	FL	0.2 ppt	54/100
84	33145	Miami	FL	0.2 ppt	59/100
85	33146	Miami	FL	0.2 ppt	59/100
86	33147	Miami	FL	0.2 ppt	54/100
87	33149	Key Biscayne	FL	0.2 ppt	40/100
88	33150	Miami	FL	0.2 ppt	54/100
89	33151	Miami	FL	0.2 ppt	65/100
90	33152	Miami	FL	0.2 ppt	69/100
91	33153	Miami	FL	0.2 ppt	65/100
92	33154	Miami Beach	FL	0.2 ppt	54/100
93	33155	Miami	FL	0.2 ppt	54/100
94	33156	Miami	FL	0.2 ppt	49/100
95	33157	Miami	FL	0.2 ppt	49/100
96	33158	Miami	FL	0.2 ppt	54/100
97	33160	North Miami Beach	FL	0.2 ppt	54/100
98	33161	Miami	FL	0.2 ppt	49/100
99	33162	Miami	FL	0.2 ppt	54/100
100	33165	Miami	FL	0.2 ppt	54/100

Rankings by State

State	ZIP Codes Ranked
Texas	1,079
California	655
Florida	620
Ohio	548
Pennsylvania	475
New Jersey	446
North Carolina	429
Illinois	370
Missouri	325
Alabama	320
New York	317
Kentucky	273
District of Columbia	270
Tennessee	255
Georgia	241
Virginia	234
Massachusetts	232
Indiana	228
Maryland	210
Arizona	207
South Carolina	206
Oklahoma	187
Connecticut	166
Washington	152
Louisiana	140
Iowa	139
Minnesota	117
Kansas	102
Michigan	99
West Virginia	83
Wisconsin	79
Colorado	79
Nevada	65
North Dakota	59
Utah	44
Delaware	43
Arkansas	38
Alaska	30
New Hampshire	29
Rhode Island	28
Oregon	25
Hawaii	24
New Mexico	15
Maine	15
South Dakota	14
Mississippi	13
Nebraska	12
Idaho	10
Montana	7
Wyoming	6
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: 2026-06-03.

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