Grasse is the only subprefecture of the Alpes-Maritimes department in the Provence-Alpes-Côte-d'Azur region on the French Riviera. In 2017, t…Grasse is the only subprefecture of the Alpes-Maritimes department in the Provence-Alpes-Côte-d'Azur region on the French Riviera. In 2017, the commune had a population of 50,396. Considered the world's capital of perfume, Grasse obtained two flowers in the Concours des villes et villages fleuris and was made Ville d'Art et d'Histoire.