San Sebastián de los Reyes is a municipality in Spain, in the province of Madrid, in the Community of Madrid. On 1 January 2025 it had 96,992 inhabitants according to the INE municipal register (padrón), over an area of about 57.9 km².
With about 1,675 inhabitants per km², it is one of the most densely populated areas in the country, part of a large metropolitan area. Of the 83 municipalities in the province of Madrid with at least 5,000 inhabitants, it is number 13 by population.
As the crow flies it lies about 15 km north-east of Madrid, the provincial capital. The nearest major city is Madrid, about 20 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Madrid Fusión (12 km), Nightlife (19 km), Relaxing in Madrid (19 km), What to see in Madrid (20 km), Madrid (20 km).
Below you will find a map of neighbouring municipalities, the weather, places to stay in the area and a link to all the municipalities in the province of Madrid.
San Sebastián de los Reyes on the map
Nearby
Municipalities of the province of Madrid · Community of Madrid