Claim: With an area of 303 sq. km, Tapachula is the capital of the Soconusco region and borders the municipalities of Motozintla, Cacahoatán, Tuxtla Chico, Frontera Hidalgo, Suchiate, Tuzantán, Huehuetán and Mazatán.
Evidence: 117 sq mi (303 km) It is one of the most important cities of Chiapas economically as the capital of the agriculturally rich Soconusco region as well as port for trade between Mexico and Central America. It borders the municipalities of Motozintla, Cacahoatán, Tuxtla Chico, Frontera Hidalgo, Suchiate, Tuzantán, Huehuetán and Mazatán with the Pacific on the south and the Guatemala to the northwest.