Soconusco is a region of the Mexican state of Chiapas. It is in the most southern part of the state. It borders the Republic of Guatemala on the southeast, the regions Costa, Sierra and Fraylesca of Chiapas on the east and north, and the shore of the Pacific Ocean on the southwest. It is a region of rich lowlands and foothills. The economic center of Soconusco is Tapachula.