Louisiana — 4th District
119th Congress · 199 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Louisiana's 4th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 70609 | Lake Charles | 88 | A | 0 |
| 2 | 71003 | Athens | 88 | A | 1 |
| 3 | 71034 | Hall Summit | 88 | A | 0 |
| 4 | 71043 | Hosston | 88 | A | 0 |
| 5 | 71063 | Pelican | 88 | A | 0 |
| 6 | 71072 | Shongaloo | 88 | A | 0 |
| 7 | 71079 | Summerfield | 88 | A | 0 |
| 8 | 71256 | Lillie | 88 | A | 0 |
| 9 | 71272 | Ruston | 88 | A | 0 |
| 10 | 71439 | Hornbeck | 88 | A | 0 |
| 11 | 70470 | Mandeville | 87 | A | 0 |
| 12 | 70585 | Turkey Creek | 87 | A | 0 |
| 13 | 70606 | Lake Charles | 87 | A | 0 |
| 14 | 70612 | Lake Charles | 87 | A | 0 |
| 15 | 70616 | Lake Charles | 87 | A | 0 |
| 16 | 70629 | Lake Charles | 87 | A | 0 |
| 17 | 70638 | Elizabeth | 87 | A | 0 |
| 18 | 70644 | Grant | 87 | A | 1 |
| 19 | 70652 | Longville | 87 | A | 0 |
| 20 | 70656 | Pitkin | 87 | A | 0 |
| 21 | 70658 | Reeves | 87 | A | 0 |
| 22 | 70660 | Singer | 87 | A | 0 |
| 23 | 71024 | Dubberly | 87 | A | 1 |
| 24 | 71044 | Ida | 87 | A | 2 |
| 25 | 71110 | Barksdale Afb | 87 | A | 2 |
| 26 | 71273 | Ruston | 87 | A | 0 |
| 27 | 71426 | Fisher | 87 | A | 0 |
| 28 | 71475 | Slagle | 87 | A | 0 |
| 29 | 71480 | Urania | 87 | A | 0 |
| 30 | 71474 | Simpson | 86 | A | 2 (2 health) |
| 31 | 71018 | Cotton Valley | 85 | A | 4 |
| 32 | 71032 | Grand Cane | 85 | A | 7 (2 health) |
| 33 | 70664 | Sulphur | 84 | B | 3 (3 health) |
| 34 | 71058 | Minden | 84 | B | 3 (3 health) |
| 35 | 70659 | Rosepine | 83 | B | 1 (1 health) |
| 36 | 70602 | Lake Charles | 82 | B | 0 |
| 37 | 70633 | Dequincy | 82 | B | 0 |
| 38 | 71270 | Ruston | 82 | B | 0 |
| 39 | 70661 | Starks | 81 | B | 3 |
| 40 | 71275 | Simsboro | 81 | B | 4 (3 health) |
| 41 | 71069 | Rodessa | 80 | B | 9 (2 health) |
| 42 | 71028 | Gibsland | 79 | B | 17 (5 health) |
| 43 | 71055 | Minden | 79 | B | 3 (3 health) |
| 44 | 71078 | Stonewall | 79 | B | 6 |
| 45 | 70515 | Basile | 78 | B | 1 (1 health) |
| 46 | 71038 | Haynesville | 78 | B | 8 (5 health) |
| 47 | 71075 | Springhill | 78 | B | 2 (1 health) |
| 48 | 70576 | Pine Prairie | 77 | B | 16 (4 health) |
| 49 | 71001 | Arcadia | 77 | B | 12 (5 health) |
| 50 | 71047 | Keithville | 76 | B | 7 (1 health) |
Overview
Louisiana's 4th District serving an estimated 9,957,251 residents encompasses 199 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (65/100).
7233 EPA violations have been recorded across this district's water systems. 5946 are health-based violations. About 68% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Haloacetic Acids (HAA5) — 2596 violations
- Fecal Coliform — 1359 violations
- Contaminant 0700 — 769 violations
- Total Trihalomethanes (TTHM) — 740 violations
- Lead and Copper Rule — 410 violations
Housing Context
Homes in this district were built on average around 1983 (~43 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 199 ZIP codes in Louisiana's 4th District.