The Pride des Banlieues is a popular queer march in La Courneuve that champions LGBTQIA+ rights within working-class neighborhoods. Tracing its origins to this event emerged as a grassroots response to the specific social challenges and visibility needs of queer individuals in suburban areas. It defines the modern social identity of Seine-Saint-Denis by celebrating the intersectionality of regional origins and gender diversity. Participants experience an inclusive atmosphere with a march through the streets followed by community village activities and artistic performances at Dock B. The event has a powerful social impact by fostering solidarity and providing a platform for voices often marginalized in mainstream urban movements. For sociologists it represents an essential case study on contemporary regional activism and the evolution of territorial belonging. This annual march preserves a legacy of courage and inclusion strengthening the social fabric of the entire Île-de-France territory.