Valdemorillo has a population of around 12,000 residents, giving it a small-town feel while still offering modern amenities. The population is primarily Spanish, but in recent years, the town has seen an influx of expatriates and foreign residents, drawn by its proximity to Madrid and its peaceful atmosphere. The demographic mix includes families, retirees, and professionals who commute to nearby urban centers for work.
The town’s population swells during the San Blas festival, when visitors from across the region flock to Valdemorillo to partake in the festivities. This seasonal influx of visitors highlights the town’s role as a cultural hub within the region.