San Sebastian de los Reyes's 2026 population is now estimated at 98,258. In 1996, the population of San Sebastian de los Reyes was 57,632. San Sebastian de los Reyes has grown by 1,266 in the last year, which represents a 1.31% annual change. These population values and projections come from INE wstempus municipal register population totals and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Madrid | 3,543,630 | 1.05% |
| Barcelona | 1,748,128 | 0.95% |
| Valencia | 850,475 | 1.15% |
| Zaragoza | 696,009 | 0.42% |
| Sevilla | 689,481 | 0.01% |
| Malaga | 603,540 | 0.75% |
| Murcia | 483,780 | 0.91% |
| Palma | 437,849 | 0.7% |
| Palmas de Gran Canaria, Las | 382,090 | 0.06% |
| Alacant/Alicante | 372,813 | 1.8% |
| Bilbao | 351,462 | 0.1% |
| Cordoba | 323,053 | -0.06% |
| Valladolid | 303,396 | 0.26% |
| Vigo | 294,224 | -0.09% |
| Hospitalet de Llobregat, L' | 294,202 | 1.62% |
| Gijon | 269,623 | -0.1% |
| Vitoria-Gasteiz | 262,164 | 0.56% |
| Coruna, A | 252,521 | 0.39% |
| Elx/Elche | 248,013 | 1% |
| Terrassa | 235,224 | 0.84% |
