Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | New Orleans (city), LA | 383,997 |
| 2 | Metairie (CDP), LA | 143,507 |
| 3 | Kenner (city), LA | 66,448 |
| 4 | Marrero (CDP), LA | 32,382 |
| 5 | Laplace (CDP), LA | 28,841 |
| 6 | Terrytown (CDP), LA | 25,278 |
| 7 | Harvey (CDP), LA | 22,236 |
| 8 | Chalmette (CDP), LA | 21,562 |
| 9 | Gretna (city), LA | 17,814 |
| 10 | Luling (CDP), LA | 13,716 |
| 11 | River Ridge (CDP), LA | 13,591 |
| 12 | Destrehan (CDP), LA | 11,340 |
| 13 | Jefferson (CDP), LA | 10,633 |
| 14 | Timberlane (CDP), LA | 10,364 |
| 15 | Waggaman (CDP), LA | 9,835 |
| 16 | Harahan (city), LA | 9,116 |
| 17 | Westwego (city), LA | 8,568 |
| 18 | Reserve (CDP), LA | 8,541 |
| 19 | St. Rose (CDP), LA | 7,504 |
| 20 | Bridge City (CDP), LA | 7,219 |