The Social Progress Index (SPI) is a tool developed to measure the well-being of individuals living in tourism destinations. Incorporating the use of a new methodology and multidimensional indicators, this instrument successfully assesses the sustainability of tourism destinations, paving the way for benchmarking between territories. Most importantly, it serves as a guide for the development of new tourism policies and the launch of public-private collaborations that have a positive impact on local communities and foster the role of tourism as a catalyst for sustainable development.