PFAS Detections in Texas ZIP Codes — 2026

Out of 979 ZIP codes with data in Texas, these are the highest-ranked areas for pfas status. See also: National ZIP Codes with PFAS Detections in Water | All Texas Rankings

Statistic	Value
ZIP codes ranked	979
Highest value	0.7 ppt
Median value	0.0 ppt
State	Texas

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	PFAS Status	Safety Score
1	77478	Sugar Land	TX	0.7 ppt	—
2	77479	Sugar Land	TX	0.7 ppt	—
3	77498	Sugar Land	TX	0.7 ppt	—
4	78629	Gonzales	TX	0.6 ppt	—
5	75028	Flower Mound	TX	0.4 ppt	79/100
6	75077	Lewisville	TX	0.4 ppt	89/100
7	76226	Argyle	TX	0.4 ppt	83/100
8	76520	Cameron	TX	0.3 ppt	—
9	77515	Angleton	TX	0.2 ppt	83/100
10	77459	Missouri City	TX	0.2 ppt	—
11	77531	Clute	TX	0.2 ppt	97/100
12	77566	Lake Jackson	TX	0.2 ppt	93/100
13	75640	Diana	TX	0.2 ppt	—
14	75651	Harleton	TX	0.2 ppt	83/100
15	75657	Jefferson	TX	0.2 ppt	—
16	75661	Karnack	TX	0.2 ppt	83/100
17	77523	Baytown	TX	0.2 ppt	—
18	77539	Dickinson	TX	0.2 ppt	83/100
19	77541	Freeport	TX	0.2 ppt	83/100
20	77469	Richmond	TX	0.1 ppt	—
21	77471	Rosenberg	TX	0.1 ppt	—
22	75163	Trinidad	TX	0.1 ppt	—
23	78008	Campbellton	TX	0.1 ppt	87/100
24	78012	Christine	TX	0.1 ppt	87/100
25	78026	Jourdanton	TX	0.1 ppt	83/100
26	78050	Leming	TX	0.1 ppt	100/100
27	78064	Pleasanton	TX	0.1 ppt	83/100
28	78065	Poteet	TX	0.1 ppt	83/100
29	78075	Whitsett	TX	0.1 ppt	—
30	78113	Falls City	TX	0.1 ppt	94/100
31	78114	Floresville	TX	0.1 ppt	83/100
32	76513	Belton	TX	0.1 ppt	78/100
33	77066	Houston	TX	0.1 ppt	84/100
34	77573	League City	TX	0.1 ppt	83/100
35	77598	Webster	TX	0.1 ppt	74/100
36	77833	Brenham	TX	0.1 ppt	—
37	75092	Sherman	TX	0.1 ppt	—
38	75459	Howe	TX	0.1 ppt	—
39	76233	Collinsville	TX	0.1 ppt	—
40	76264	Sadler	TX	0.1 ppt	—
41	76273	Whitesboro	TX	0.1 ppt	—
42	77406	Richmond	TX	0.1 ppt	—
43	77550	Galveston	TX	0.1 ppt	98/100
44	77551	Galveston	TX	0.1 ppt	98/100
45	77554	Galveston	TX	0.1 ppt	83/100
46	77555	Galveston	TX	0.1 ppt	98/100
47	77565	Kemah	TX	0.1 ppt	100/100
48	77590	Texas City	TX	0.1 ppt	92/100
49	75050	Grand Prairie	TX	0.1 ppt	75/100
50	75051	Grand Prairie	TX	0.1 ppt	75/100
51	75052	Grand Prairie	TX	0.1 ppt	63/100
52	75054	Grand Prairie	TX	0.1 ppt	63/100
53	75104	Cedar Hill	TX	0.1 ppt	72/100
54	76065	Midlothian	TX	0.1 ppt	78/100
55	77568	La Marque	TX	0.1 ppt	83/100
56	77047	Houston	TX	0.1 ppt	73/100
57	77089	Houston	TX	0.1 ppt	73/100
58	77581	Pearland	TX	0.1 ppt	82/100
59	77583	Rosharon	TX	0.1 ppt	67/100
60	77584	Pearland	TX	0.1 ppt	67/100
61	77477	Stafford	TX	0.1 ppt	—
62	75142	Kaufman	TX	0.1 ppt	67/100
63	75161	Terrell	TX	0.1 ppt	72/100
64	75169	Wills Point	TX	0.1 ppt	—
65	75901	Lufkin	TX	0.1 ppt	—
66	75949	Huntington	TX	0.1 ppt	—
67	77422	Brazoria	TX	0.1 ppt	90/100
68	77979	Port Lavaca	TX	0.1 ppt	—
69	77069	Houston	TX	0.1 ppt	90/100
70	79601	Abilene	TX	0.0 ppt	—
71	79602	Abilene	TX	0.0 ppt	—
72	79603	Abilene	TX	0.0 ppt	—
73	79605	Abilene	TX	0.0 ppt	—
74	79606	Abilene	TX	0.0 ppt	—
75	77002	Houston	TX	0.0 ppt	91/100
76	77003	Houston	TX	0.0 ppt	91/100
77	77004	Houston	TX	0.0 ppt	91/100
78	77005	Houston	TX	0.0 ppt	67/100
79	77006	Houston	TX	0.0 ppt	91/100
80	77007	Houston	TX	0.0 ppt	91/100
81	77008	Houston	TX	0.0 ppt	91/100
82	77009	Houston	TX	0.0 ppt	91/100
83	77010	Houston	TX	0.0 ppt	91/100
84	77011	Houston	TX	0.0 ppt	91/100
85	77012	Houston	TX	0.0 ppt	91/100
86	77013	Houston	TX	0.0 ppt	91/100
87	77014	Houston	TX	0.0 ppt	88/100
88	77015	Houston	TX	0.0 ppt	62/100
89	77016	Houston	TX	0.0 ppt	91/100
90	77017	Houston	TX	0.0 ppt	89/100
91	77018	Houston	TX	0.0 ppt	91/100
92	77019	Houston	TX	0.0 ppt	—
93	77020	Houston	TX	0.0 ppt	91/100
94	77021	Houston	TX	0.0 ppt	91/100
95	77022	Houston	TX	0.0 ppt	91/100
96	77023	Houston	TX	0.0 ppt	91/100
97	77024	Houston	TX	0.0 ppt	90/100
98	77025	Houston	TX	0.0 ppt	72/100
99	77026	Houston	TX	0.0 ppt	91/100
100	77027	Houston	TX	0.0 ppt	91/100

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: 2026-08-31.

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.