This research project aims to measure and monitor the impacts of tourism on residents in the Algarve, considering the region as a whole and its municipalities individually. The project aims to achieve three specific goals: 1. Identify indicators, related to residents, that should be measured for the sustainable development of tourism in the Algarve. 2. Quantify these indicators by collecting data in the 16 municipalities in the Algarve, both in the high and low seasons. 3. Build a digital platform that allows interested parties easy access to the results of the project and use the information obtained to support the decision-making process for the sustainable development of tourism.