| Castellón (province) | |
 | |
| location | |
 | |
| Main information | |
| Capital city | Castellón de la Plana |
| Currency | euro |
| Surface | 6632 |
| Population | 575 000 |
| Tongue | Valencian, Spanish |
| religion | Catholicism |
Castellón (province) - one of the 50 Spanish provinces, part of the autonomous community Valencia. The provincial capital is Castellón de la Plana.
It is situated in the east of the Iberian Peninsula, on the Mediterranean Sea. It is bordered by the province of Tarragona to the north, the province of Teruel to the west and the province of Valencia to the south.