Wallace is a census-designated place (CDP) in St. John the Baptist Parish, Louisiana, United States. The population was 570 at the 2000 census. It is part of the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The rural community is on the west bank of the Mississippi River and easily accessible to Interstate 10 via the Gramercy Bridge.
It is the site of Evergreen Plantation, designated a National Historic Landmark in 1992 in part because of its 22 surviving quarters. It is one of the most complete plantations in the South. Its significance has made it one of the sites on the Louisiana African American Heritage Trail.