10 cities
| City | Parish | 2025 Pop. ↓ |
|---|---|---|
| Kenner | Jefferson Parish | 64,240 |
| Kaplan | Vermilion Parish | 4,121 |
| Kentwood | Tangipahoa Parish | 2,205 |
| Kinder | Allen Parish | 2,075 |
| Killian | Livingston Parish | 1,273 |
| Kraemer | Lafourche Parish | 1,177 |
| Krotz Springs | St. Landry Parish | 869 |
| Kilbourne | West Carroll Parish | 327 |
| Keachi | Caddo Parish | 248 |
| Killona | St. Charles Parish | 129 |