Caldas de Reyes is a small town with a population of approximately 10,000 people. The majority of the population is of Galician descent, and the town has a close-knit, community-oriented atmosphere. The population is relatively balanced in terms of age distribution, with a mix of families, elderly residents, and younger people, many of whom are involved in the tourism or agriculture sectors.
In recent years, the town has experienced a slight increase in population due to its growing appeal as a tourist destination, as well as the migration of people seeking a quieter lifestyle outside of the larger cities. The presence of pilgrims walking the Camino de Santiago also brings a diverse range of visitors to the town, contributing to its cultural diversity.