San Sebastián de los Reyes has a population of 75,912, making it the 94th largest place we list in Spain. It is in Madrid.
San Sebastián de los Reyes holds 0.16% of Spain's 47,850,793 people. Madrid, the largest place we list there, is 43 times its size. Twenty years earlier the World Gazetteer recorded 69,953, a rise of 9%.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
San Sebastián de los Reyes is in Madrid, which has 166 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Arona | Canary Islands | 78,614 |
| Torrent | Valencia | 78,543 |
| Manresa | Catalonia | 76,250 |
| Valdemoro | Madrid | 74,745 |
| Ciudad Real | Castille-La Mancha | 74,743 |
| Vélez-Málaga | Andalusia | 74,190 |
All places in Spain → · Madrid →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.