Zumaia has a population of approximately 10,000 residents, making it a small but vibrant town. The majority of the population is of Basque descent, and Euskara (the Basque language) is widely spoken alongside Spanish. The town’s population has remained relatively stable over the years, with a strong sense of community and a deep connection to Basque traditions and culture.
Demographically, Zumaia is a diverse mix of families, young professionals, and older residents, with a noticeable presence of international visitors and expatriates drawn to the area for its natural beauty and relaxed pace of life. Tourism has introduced a more cosmopolitan flair to the town, while Zumaia retains its strong local identity and cultural heritage.