Harahan is a city in the U.S. state of Louisiana and suburb of New Orleans. The city of Harahan is located in Jefferson Parish; its population was 9,116 at the 2020 census.

Jefferson Parish is a parish in the U.S. state of Louisiana. As of the 2020 census, the population was 440,781. Its parish seat is Gretna, its largest community is Metairie, and its largest incorporated city is Kenner. Jefferson Parish is included in the Greater New Orleans area.