Identifiers: CDP · city · town
| Rank | Community | Population |
|---|---|---|
| 1 | Metairie (CDP), LA | 143,507 |
| 2 | Kenner (city), LA | 66,448 |
| 3 | Laplace (CDP), LA | 28,841 |
| 4 | Luling (CDP), LA | 13,716 |
| 5 | River Ridge (CDP), LA | 13,591 |
| 6 | Gonzales (city), LA | 12,231 |
| 7 | Destrehan (CDP), LA | 11,340 |
| 8 | Jefferson (CDP), LA | 10,633 |
| 9 | Harahan (city), LA | 9,116 |
| 10 | Reserve (CDP), LA | 8,541 |
| 11 | Ponchatoula (city), LA | 7,822 |
| 12 | St. Rose (CDP), LA | 7,504 |
| 13 | South Vacherie (CDP), LA | 3,388 |
| 14 | Lutcher (town), LA | 3,133 |
| 15 | Norco (CDP), LA | 2,984 |
| 16 | Hahnville (CDP), LA | 2,959 |
| 17 | Gramercy (town), LA | 2,932 |
| 18 | Grand Point (CDP), LA | 2,241 |
| 19 | Garyville (CDP), LA | 2,123 |
| 20 | Montz (CDP), LA | 2,106 |