CONGRESSIONAL DISTRICT TX

Texas - 21st District

119th Congress · 53 ZIP codes · Avg score 85/100 · Grade A · Updated N/A

Data: EPA SDWIS / Census 119th Congress Last verified: N/A

ZipCheckup's versioned Home Safety Profile covers 53 ZIP codes in Texas's 21st District: the measured model 4.0.0 average is Grade A (85/100). 1,047 EPA violations on record, 287 health-based.

A
District Grade
85
Avg Safety Score
53
ZIP Codes
1047
Total Violations
287
Health Violations
68
Water Systems
San Antonio
Best ZIP: 78216 (92/100)
Austin
Lowest ZIP: 78737 (66/100)

Top Contaminants

Lead and Copper Rule (190) Fecal Coliform (133) Contaminant 0800 (111) Haloacetic Acids (HAA5) (89) Stage 2 DBP Rule (62)

ZIP Codes in This District

53 ZIP codes tracked in Texas's 21st District. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 78216 San Antonio 92 A 0
2 78232 San Antonio 92 A 0
3 78247 San Antonio 92 A 0
4 78259 San Antonio 92 A 0
5 78261 San Antonio 92 A 0
6 78209 San Antonio 88 A 8 (2 health)
7 78213 San Antonio 88 A 8 (4 health)
8 78230 San Antonio 88 A 8 (4 health)
9 78231 San Antonio 88 A 8 (4 health)
10 78736 Austin 72 B 7 (2 health)
11 78735 Austin 71 B 11 (2 health)
12 78737 Austin 66 C 20 (3 health)
13 78003 Bandera N/A N/A 28 (5 health)
14 78004 Bergheim N/A N/A 5 (3 health)
15 78006 Boerne N/A N/A 17 (10 health)
16 78010 Center Point N/A N/A 19 (4 health)
17 78013 Comfort N/A N/A 24 (7 health)
18 78024 Hunt N/A N/A N/A
19 78025 Ingram N/A N/A 1
20 78027 Kendalia N/A N/A N/A
21 78028 Kerrville N/A N/A 104 (38 health)
22 78029 Kerrville N/A N/A N/A
23 78055 Medina N/A N/A N/A
24 78058 Mountain Home N/A N/A N/A
25 78063 Pipe Creek N/A N/A 39 (4 health)
26 78070 Spring Branch N/A N/A 29 (8 health)
27 78074 Waring N/A N/A N/A
28 78131 New Braunfels N/A N/A N/A
29 78132 New Braunfels N/A N/A 191 (63 health)
30 78133 Canyon Lake N/A N/A 41 (11 health)
31 78135 New Braunfels N/A N/A N/A
32 78163 Bulverde N/A N/A 31 (11 health)
33 78266 San Antonio N/A N/A 169 (58 health)
34 78606 Blanco N/A N/A 50 (15 health)
35 78610 Buda N/A N/A 53 (5 health)
36 78618 Doss N/A N/A N/A
37 78619 Driftwood N/A N/A 26 (4 health)
38 78620 Dripping Springs N/A N/A 17 (3 health)
39 78623 Fischer N/A N/A 20 (5 health)
40 78624 Fredericksburg N/A N/A 5
41 78631 Harper N/A N/A N/A
42 78635 Hye N/A N/A 17
43 78636 Johnson City N/A N/A 17
44 78663 Round Mountain N/A N/A 9 (2 health)
45 78667 San Marcos N/A N/A N/A
46 78671 Stonewall N/A N/A N/A
47 78675 Willow City N/A N/A N/A
48 78676 Wimberley N/A N/A 46 (9 health)
49 78833 Camp Wood N/A N/A N/A
50 78873 Leakey N/A N/A N/A

Overview

Texas's 21st District encompasses 53 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (85/100).

1047 EPA violations have been recorded across this district's water systems. 287 are health-based violations. About 86% of the 36 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Lead and Copper Rule - 190 violations
  • Fecal Coliform - 133 violations
  • Contaminant 0800 - 111 violations
  • Haloacetic Acids (HAA5) - 89 violations
  • Stage 2 DBP Rule - 62 violations

Housing Context

Homes in this district were built on average around 1991 (~35 years old). Most homes were built after lead pipe regulations were tightened.

Data Sources

Updated daily. Data covers 53 ZIP codes in Texas's 21st District.

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How to cite this page

APA ZipCheckup. (2026). Texas 21st District: 1047 EPA Violations - A. https://zipcheckup.com/congressional/tx-21/
BibTeX 
@misc{zipcheckup-congressional-tx-21,
  author = {{ZipCheckup}},
  title  = {{Texas 21st District: 1047 EPA Violations - A}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/tx-21/}
}

Page version: August 2026.

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