2026 Rankings

ZIP Codes with Most EPA Violations in Texas — 2026

Last updated: June 3, 2026

2,089 ZIP codes ranked by Violations #1: ZIP 79843 (Marfa, TX) — 199
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 2,089 ZIP codes with data in Texas, these are the highest-ranked areas for violations. See also: National ZIP Codes with Most EPA Water Violations | All Texas Rankings

Statistic Value
ZIP codes ranked 2,089
Highest value 199
Median value 3
State Texas

Top 100 Worst ZIP Codes

Rank ZIP Code City State Violations Safety Score
1 79843 Marfa TX 199 50/100
2 77662 Vidor TX 191 50/100
3 77670 Vidor TX 191 65/100
4 78112 Elmendorf TX 162 91/100
5 79045 Hereford TX 160 74/100
6 78828 Barksdale TX 153 66/100
7 77982 Port O Connor TX 151 60/100
8 77413 Barker TX 140 90/100
9 79346 Morton TX 130 93/100
10 77951 Bloomington TX 128 73/100
11 76431 Chico TX 108 57/100
12 79336 Levelland TX 100 53/100
13 79338 Levelland TX 100 50/100
14 76642 Groesbeck TX 96 53/100
15 79373 Tahoka TX 96 70/100
16 76937 Eola TX 90 55/100
17 79785 Toyah TX 90 57/100
18 75980 Zavalla TX 87 70/100
19 79714 Andrews TX 83 66/100
20 79546 Rotan TX 78 70/100
21 75472 Point TX 77 61/100
22 76875 Rowena TX 69 55/100
23 75750 Arp TX 66 55/100
24 75759 Cuney TX 66 81/100
25 79363 Shallowater TX 64 58/100
26 79733 Forsan TX 64 83/100
27 76071 Newark TX 63 76/100
28 78013 Comfort TX 60 71/100
29 79567 Winters TX 60 95/100
30 75694 Woodlawn TX 59 55/100
31 75643 Gary TX 58 66/100
32 75691 Tatum TX 58 66/100
33 79380 Whitharral TX 58 39/100
34 75954 Joaquin TX 56 66/100
35 78006 Boerne TX 55 68/100
36 78015 Boerne TX 55 73/100
37 78570 Mercedes TX 55 60/100
38 79401 Lubbock TX 54 58/100
39 79402 Lubbock TX 54 50/100
40 79403 Lubbock TX 54 58/100
41 79404 Lubbock TX 54 53/100
42 79405 Lubbock TX 54 50/100
43 79406 Lubbock TX 54 50/100
44 79407 Lubbock TX 54 53/100
45 79408 Lubbock TX 54 58/100
46 79409 Lubbock TX 54 50/100
47 79410 Lubbock TX 54 48/100
48 79411 Lubbock TX 54 53/100
49 79412 Lubbock TX 54 48/100
50 79413 Lubbock TX 54 53/100
51 79414 Lubbock TX 54 53/100
52 79415 Lubbock TX 54 58/100
53 79416 Lubbock TX 54 53/100
54 79423 Lubbock TX 54 48/100
55 79424 Lubbock TX 54 53/100
56 79430 Lubbock TX 54 50/100
57 79452 Lubbock TX 54 50/100
58 79453 Lubbock TX 54 50/100
59 79457 Lubbock TX 54 50/100
60 79464 Lubbock TX 54 50/100
61 79490 Lubbock TX 54 58/100
62 79491 Lubbock TX 54 50/100
63 79493 Lubbock TX 54 50/100
64 79499 Lubbock TX 54 50/100
65 75148 Malakoff TX 53 61/100
66 78076 Zapata TX 52 71/100
67 78341 Benavides TX 52 70/100
68 78584 Roma TX 52 79/100
69 75501 Texarkana TX 51 77/100
70 75503 Texarkana TX 51 77/100
71 75504 Texarkana TX 51 87/100
72 75505 Texarkana TX 51 87/100
73 75507 Texarkana TX 51 89/100
74 75599 Texarkana TX 51 89/100
75 75647 Gladewater TX 51 69/100
76 79510 Clyde TX 51 69/100
77 76444 De Leon TX 50 56/100
78 79261 Turkey TX 50 55/100
79 75976 Wells TX 49 55/100
80 75780 New Summerfield TX 48 55/100
81 79101 Amarillo TX 48 78/100
82 79102 Amarillo TX 48 78/100
83 79103 Amarillo TX 48 73/100
84 79104 Amarillo TX 48 78/100
85 79105 Amarillo TX 48 78/100
86 79106 Amarillo TX 48 73/100
87 79107 Amarillo TX 48 78/100
88 79108 Amarillo TX 48 78/100
89 79109 Amarillo TX 48 63/100
90 79110 Amarillo TX 48 73/100
91 79111 Amarillo TX 48 77/100
92 79114 Amarillo TX 48 78/100
93 79116 Amarillo TX 48 78/100
94 79117 Amarillo TX 48 77/100
95 79118 Amarillo TX 48 73/100
96 79119 Amarillo TX 48 78/100
97 79120 Amarillo TX 48 78/100
98 79121 Amarillo TX 48 78/100
99 79124 Amarillo TX 48 78/100
100 79159 Amarillo TX 48 78/100

Methodology

Violation counts include all types recorded in the EPA SDWIS database: Maximum Contaminant Level (MCL) violations, treatment technique violations, and monitoring/reporting violations. Both resolved and unresolved violations are counted. Higher counts may reflect longer system histories or larger service areas.

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 counts as an EPA water violation?

EPA violations include exceeding Maximum Contaminant Levels (MCLs), failing to treat water properly (treatment technique violations), and not testing or reporting on schedule (monitoring violations). Health-based violations are the most serious.

Does a high violation count mean the water is unsafe now?

Not necessarily. Many violations are historical or monitoring-related. However, a pattern of repeated violations indicates systemic issues with water system management or infrastructure.

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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