Louisiana — 3rd District
119th Congress · 89 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 89 ZIP codes in Louisiana's 3rd District: the district earns a grade B (70/100). 309 EPA violations on record, 163 health-based.
Top Contaminants
ZIP Codes in This District
89 ZIP codes tracked in Louisiana's 3rd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 70310 | Thibodaux | 99 | A | 0 |
| 2 | 70595 | Lafayette | 99 | A | 0 |
| 3 | 70598 | Lafayette | 99 | A | 0 |
| 4 | 70504 | Lafayette | 95 | A | 0 |
| 5 | 70509 | Lafayette | 95 | A | 0 |
| 6 | 70532 | Elton | 95 | A | 0 |
| 7 | 70593 | Lafayette | 95 | A | 0 |
| 8 | 70521 | Cecilia | 94 | A | 1 (1 health) |
| 9 | 70505 | Lafayette | 90 | A | 0 |
| 10 | 70511 | Abbeville | 90 | A | 1 |
| 11 | 70534 | Estherwood | 89 | A | 2 (1 health) |
| 12 | 70556 | Mermentau | 89 | A | 1 (1 health) |
| 13 | 70543 | Iota | 88 | A | 4 (2 health) |
| 14 | 70552 | Loreauville | 88 | A | 2 (2 health) |
| 15 | 70381 | Morgan City | 87 | A | 4 (3 health) |
| 16 | 70522 | Centerville | 86 | A | 1 (1 health) |
| 17 | 70361 | Houma | 85 | A | 1 |
| 18 | 70591 | Welsh | 85 | A | 0 |
| 19 | 70558 | Milton | 84 | B | 6 (1 health) |
| 20 | 70544 | Jeanerette | 83 | B | 7 (2 health) |
| 21 | 70549 | Lake Arthur | 82 | B | 3 |
| 22 | 70546 | Jennings | 81 | B | 1 (1 health) |
| 23 | 70360 | Houma | 80 | B | 1 |
| 24 | 70503 | Lafayette | 80 | B | 0 |
| 25 | 70518 | Broussard | 80 | B | 0 |
| 26 | 70615 | Lake Charles | 80 | B | 0 |
| 27 | 70645 | Hackberry | 80 | B | 0 |
| 28 | 70523 | Charenton | 79 | B | 4 (4 health) |
| 29 | 70548 | Kaplan | 78 | B | 3 (2 health) |
| 30 | 70559 | Morse | 78 | B | 3 (2 health) |
| 31 | 70578 | Rayne | 78 | B | 3 (2 health) |
| 32 | 70529 | Duson | 77 | B | 3 |
| 33 | 70342 | Berwick | 76 | B | 4 (3 health) |
| 34 | 70528 | Delcambre | 76 | B | 3 (2 health) |
| 35 | 70583 | Scott | 76 | B | 4 (1 health) |
| 36 | 70647 | Iowa | 76 | B | 5 (1 health) |
| 37 | 70301 | Thibodaux | 75 | B | 0 |
| 38 | 70363 | Houma | 75 | B | 1 |
| 39 | 70364 | Houma | 75 | B | 1 |
| 40 | 70506 | Lafayette | 75 | B | 0 |
| 41 | 70508 | Lafayette | 75 | B | 0 |
| 42 | 70510 | Abbeville | 75 | B | 1 |
| 43 | 70525 | Church Point | 75 | B | 3 (2 health) |
| 44 | 70533 | Erath | 75 | B | 1 |
| 45 | 70601 | Lake Charles | 75 | B | 0 |
| 46 | 70605 | Lake Charles | 75 | B | 0 |
| 47 | 70562 | New Iberia | 74 | B | 14 (3 health) |
| 48 | 70592 | Youngsville | 74 | B | 8 (3 health) |
| 49 | 70542 | Gueydan | 73 | B | 13 (6 health) |
| 50 | 70380 | Morgan City | 72 | B | 4 (3 health) |
Overview
Louisiana's 3rd District encompasses 89 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (70/100).
309 EPA violations have been recorded across this district's water systems. 163 are health-based violations. About 52% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Haloacetic Acids (HAA5) - 66 violations
- Lead and Copper Rule - 48 violations
- Stage 1 DBP Rule - 45 violations
- Contaminant 0700 - 43 violations
- Fecal Coliform - 37 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.
Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
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 89 ZIP codes in Louisiana's 3rd District.