Founded in 1840, Calcasieu Parish is one of 64 parishes in the state of Louisiana. Historically, Calcasieu Parish was formed from part of St. Landry Parish. The city of Lake Charles is the parish seat. With FIPS code of 19, Calcasieu Parish has a population of 205,282 and area of 1,094 square miles (2,833 km2).
List of all cities in Calcasieu Parish, LA alphabetically
| City/Town | Postal Code | Area Code |
| Bell City, LA | 70630 | 337 |
| Cal Marne Twr, LA | 70629 | 337 |
| Calcasieu Marine Tower, LA | 70629 | 337 |
| Dequincy, LA | 70633 | 337 |
| Drew, LA | 70607 | 337 |
| Hayes, LA | 70646 | 337 |
| Iowa, LA | 70647 | 337 |
| Lake Charles, LA | 70601 | 337 |
| 70602 | 337 | |
| 70605 | 337 | |
| 70606 | 337 | |
| 70607 | 337 | |
| 70609 | 337 | |
| 70611 | 337 | |
| 70612 | 337 | |
| 70615 | 337 | |
| 70616 | 337 | |
| 70629 | 337 | |
| McNeese State University, LA | 70609 | 337 |
| Moss Bluff, LA | 70611 | 337 |
| Starks, LA | 70661 | 337 |
| Sulphur, LA | 70663 | 337 |
| 70664 | 337 | |
| 70665 | 337 | |
| Sweet Lake, LA | 70605 | 337 |
| Vinton, LA | 70668 | 337 |
| Westlake, LA | 70669 | 337 |