The cultural influence that is strong in the Gulf Coastal Plains is French and Spanish.

Due to early colonization and occupation, the Gulf Coastal Plains have a significant French and Spanish cultural influence. Spanish colonists founded cities and missions, which had a big influence on regional language, architecture, and customs. The rich Hispanic heritage that is celebrated in festivals, food, and art is indicative of this impact. The region's distinctive cultural fusion was also influenced by French colonists, especially in Louisiana, who brought Creole and Cajun customs, music, and cuisine. The Gulf Coastal Plains is a diversified, vibrant area with a distinctive history that draws tourists and promotes a sense of community pride because of the complex tapestry of cultural influences that have shaped its character over time.