Gretna, LA is currently using one area code which is area code 504. Area code 504 originally served the entire state of Louisiana when it was put into service on January 1, 1947.
In addition to Gretna, LA area code 504 serves New Orleans and the surrounding communities of Chalmette, Harvey, Kenner, Marrero, Metairie, and Terrytown, as well as, many smaller communities in southeastern Louisiana.
Gretna, LA is located in Jefferson Parish and observes the Central Time Zone.
View our Times by Area Code tool.