Onda has a population of around 25,000 people, making it a small yet vibrant community. The majority of the population is Spanish, with a strong Valencian cultural identity, though in recent years, the town has become more diverse due to the increasing popularity of tourism and the ceramics industry. The population is spread across a range of age groups, from young families to retirees, creating a balanced and dynamic social atmosphere.
Onda has experienced steady growth, particularly due to its ceramic industry, which attracts workers from both the local area and abroad. The town’s population increases significantly during festival times, when visitors from nearby regions and countries come to participate in its lively celebrations.