Louisiana — 1st District
119th Congress · 74 ZIP codes · Avg score 57/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 74 ZIP codes in Louisiana's 1st District: the district earns a grade C (57/100). 223 EPA violations on record, 97 health-based.
Top Contaminants
ZIP Codes in This District
74 ZIP codes tracked in Louisiana's 1st District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 70469 | Slidell | 98 | A | 4 (1 health) |
| 2 | 70470 | Mandeville | 95 | A | 0 |
| 3 | 70463 | Sun | 94 | A | 2 (1 health) |
| 4 | 70707 | Gonzales | 90 | A | 1 |
| 5 | 70434 | Covington | 86 | A | 3 (1 health) |
| 6 | 70181 | New Orleans | 84 | B | 18 (8 health) |
| 7 | 70459 | Slidell | 84 | B | 4 (1 health) |
| 8 | 70374 | Lockport | 80 | B | 0 |
| 9 | 70420 | Abita Springs | 80 | B | 0 |
| 10 | 70452 | Pearl River | 80 | B | 1 |
| 11 | 70437 | Folsom | 79 | B | 1 (1 health) |
| 12 | 70435 | Covington | 76 | B | 3 (1 health) |
| 13 | 70448 | Mandeville | 75 | B | 0 |
| 14 | 70471 | Mandeville | 75 | B | 0 |
| 15 | 70458 | Slidell | 74 | B | 4 (1 health) |
| 16 | 70460 | Slidell | 74 | B | 4 (1 health) |
| 17 | 70461 | Slidell | 74 | B | 4 (1 health) |
| 18 | 70774 | Saint Amant | 74 | B | 7 (1 health) |
| 19 | 70433 | Covington | 71 | B | 3 (1 health) |
| 20 | 70454 | Ponchatoula | 70 | B | 9 (2 health) |
| 21 | 70447 | Madisonville | 68 | C | 5 |
| 22 | 70445 | Lacombe | 67 | C | 1 |
| 23 | 70093 | Belle Chasse | 66 | C | 17 (15 health) |
| 24 | 70449 | Maurepas | 66 | C | 3 (1 health) |
| 25 | 70115 | New Orleans | 64 | C | 18 (8 health) |
| 26 | 70121 | New Orleans | 64 | C | 18 (8 health) |
| 27 | 70123 | New Orleans | 64 | C | 18 (8 health) |
| 28 | 70124 | New Orleans | 64 | C | 18 (8 health) |
| 29 | 70129 | New Orleans | 64 | C | 18 (8 health) |
| 30 | 70462 | Springfield | 61 | C | 22 (5 health) |
| 31 | 70033 | Metairie | 60 | C | 0 |
| 32 | 70060 | Metairie | 60 | C | 0 |
| 33 | 70064 | Kenner | 60 | C | 0 |
| 34 | 70375 | Mathews | 60 | C | 0 |
| 35 | 70004 | Metairie | 52 | D | 0 |
| 36 | 70009 | Metairie | 52 | D | 0 |
| 37 | 70010 | Metairie | 52 | D | 0 |
| 38 | 70011 | Metairie | 52 | D | 0 |
| 39 | 70055 | Metairie | 52 | D | 0 |
| 40 | 70063 | Kenner | 52 | D | 0 |
| 41 | 70081 | Pilottown | 52 | D | 0 |
| 42 | 70355 | Gheens | 52 | D | 0 |
| 43 | 70464 | Talisheek | 52 | D | 0 |
| 44 | 70718 | Brittany | 52 | D | 0 |
| 45 | 70037 | Belle Chasse | 50 | D | 17 (15 health) |
| 46 | 70457 | Saint Benedict | 50 | D | 0 |
| 47 | 70038 | Boothville | 47 | D | 0 |
| 48 | 70050 | Empire | 47 | D | 0 |
| 49 | 70078 | New Sarpy | 47 | D | 0 |
| 50 | 70082 | Pointe A La Hache | 47 | D | 0 |
Overview
Louisiana's 1st District encompasses 74 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (57/100).
223 EPA violations have been recorded across this district's water systems. 97 are health-based violations. About 35% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Chlorite - 42 violations
- Surface Water Treatment Rule - 39 violations
- Haloacetic Acids (HAA5) - 34 violations
- Stage 1 DBP Rule - 31 violations
- Lead and Copper Rule - 30 violations
Housing Context
Homes in this district were built on average around 1985 (~41 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 74 ZIP codes in Louisiana's 1st District.