Signor Antoine Galliano settled in the vicinity in the late 1700s and had a large farm and a citrus tree orchard.

A popular local legend is that his wife, Julia, had no last name and was related closely to the King of Spain.

Antoine Galliano or Galiano (Spanish spelling) had fallen in love with a lady of noble birth – probably a princess, since he was in the King's Guard.

South Lafourche Leonard Miller Jr. Airport is 2 miles (3 km) east of Galliano.

[5][6] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

[7] As of the 2020 United States census, there were 7,100 people, 2,841 households, and 1,907 families residing in the CDP.

[13][15] South Lafourche High School is also in Galliano CDP and serves all of the territory.