| City | County | 2026 Pop. ↓ |
|---|---|---|
| Kenner | Jefferson Parish | 64,911 |
| Kaplan | Vermilion Parish | 4,072 |
| Kentwood | Tangipahoa Parish | 2,227 |
| Kinder | Allen Parish | 2,078 |
| Killian | Livingston Parish | 1,279 |
| Kraemer | Lafourche Parish | 977 |
| Krotz Springs | St. Landry Parish | 872 |
| Kilbourne | West Carroll Parish | 322 |
| Keachi | Caddo Parish | 247 |
| Killona | St. Charles Parish | 55 |