Xichú is a Mexican city (and municipality) located in the Northeast region of the state of Guanajuato. The municipality is entirely within the Sierra Gorda range and has an area of 912.20 square kilometres (3.0% of the surface of the state). It is bordered to the north by the state of San Luis Potosí, to the east by Atarjea, to the south by the state of Querétaro and Santa Catarina and to the west by Victoria.