The county of Jefferson is located in Louisiana and was founded in 1825. There are 436,275 residents in Jefferson who have access to courthouses in Grand Isle, Gretna, Harahan, Harvey, Jean Lafitte, Kenner, Marrero, Metairie, Westwego. In general, each county has a full set of courts, from traffic court to superior and appellate court; supreme courts are usually located in the state capital. Louisiana is part of the 5th federal circuit court as well.
There are 1,296 residents in Grand Isle, which is 8.2 square miles and 7ft above sea level.
There are 17,736 residents in Gretna, which is 4.5 square miles.
There are 9,277 residents in Harahan, which is 2.5 square miles and 7ft above sea level.
There are 1,903 residents in Jean Lafitte, which is 6.2 square miles and 3ft above sea level.
There are 8,534 residents in Westwego, which is 3.6 square miles.