Jefferson is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States, on the north side of the Mississippi River. Jefferson is part of the New Orleans–Metairie–Kenner metropolitan statistical area. The population was 11,193 at the 2010 census, and 10,533 in 2020. It is often known by locals as "Old Jefferson", but should not be confused with Old Jefferson in East Baton Rouge Parish, Louisiana.
Old Jefferson welcome sign at the boundary with the City of New Orleans
Whitehall Plantation House is a rare survivor from the area's plantation era
Riverdale High School
Riverdale High School
Jefferson Parish, Louisiana
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.
City Hall in Gretna
Barataria Bay Lighthouse, c. 1903
Gretna after Hurricane Katrina, 2005
Billboard in Terrytown after Katrina, 2005