Seseña has experienced significant population growth over the past decade, largely due to its proximity to Madrid and its appeal as a residential community for commuters. The town’s population currently stands at around 30,000, with a mix of native Castilian residents and newer arrivals from other parts of Spain and abroad.
The city is known for its family-friendly atmosphere, with many young families choosing to settle in Seseña due to its affordable housing and good schools. This has led to a diverse and vibrant community, with a strong sense of local identity and a growing focus on cultural and social activities.