At 31st December 2018, the Fons Català de Cooperació had 319 members, of which 287 are town councils, 14 county councils, 4 provincial councils, a commonwealth of municipalities, a decentralized municipal entity and also 13 entities and NGOs.

The partner councils bring together 85% of the Catalan population, despite representing 30% of the total number of municipalities in Catalonia.