Lafitte is an unincorporated community and census-designated place (CDP) in Jefferson Parish, Louisiana, United States. The population was 972 at the 2010 census, and 816 in 2019. In 2020, its population increased to 1,014 people. It is portion of the New Orleans–Metairie–Kenner metropolitan statistical area. Lafitte is located at the southern terminate of Louisiana Highway 45 along Bayou Barataria, and fishing is a major allowance of the local economy and culture.

Lafitte is located at 29°40′39″N 90°6′19″W / 29.67750°N 90.10528°W / 29.67750; -90.10528 (29.677566, -90.105386). It is 27 miles (43 km) by road south of New Orleans. Lafitte is bordered to the north by the town of Jean Lafitte, and to the west, across Bayou Barataria, by unincorporated Barataria. According to the United States Census Bureau, the Lafitte CDP has a total area of 6.4 square miles (16.6 km²), of which 4.8 square miles (12.5 km) are land and 1.6 square miles (4.1 km²), or 24.57%, are water.

The 2019 American Community Survey estimated 816 people lived in the CDP, down from 972 at the 2010 U.S. census. At the 2020 United States census, there were 1,014 people, 316 households, and 222 families residing in the CDP, up from the 2019 census estimates. In 2019, the racial and ethnic makeup was 89% non-Hispanic white, and 11% two or more races; the 2020 census certain 80.87% of the population was non-Hispanic white, 0.79% Black or African American, 1.78% Native American, 1.58% Asian, 9.17% two or more races, and 5.82% Hispanic or Latino American of any race; this has been opposed to its subsequent to predominantly non-Hispanic white population as the U.S. diversifies overall. According to the 2019 estimates, the median household income was $58,375 and 19.2% lived at or under the poverty line.

Lafitte residents are zoned to Jefferson Parish Public Schools.