Chiloé archipelago has experienced profound socio-spatial changes since the early 1980s. The localization and progressive consolidation of the salmon industry changed the velocity and composition of the urbanization process in the province, generating new forms of spatial occupation. This can be seen in a new urban typology characterized by nine forms of occupation. This typology emerges from an analysis of the morphological evolution of five cities using GIS. The article concludes that the insertion of small and medium size cities in circuits, or networks of global capital takes place at a high velocity, leaving urban planning, a public function, behind. Consequently, urban planning ends up as an instrument of recognition of organic urban growth and not of regulation and growth orientation. This situation of differentiated velocities generates disequilibria that negatively affect the possibilities of creating more sustainable urban development processes.