city, northern Veracruz estado (state), east-central Mexico. It lies along the Tuxpan River, 7.5 miles (12 km) from the river's mouth on the Gulf of Mexico. Despite its hot, humid climate, Tuxpan is a commercial, industrial, and transportation centre. The principal source of income is petroleum from the nearby oil fields, much of which is exported. Other exports include corn (maize), bananas, fish, and livestock from the hinterland that are processed in the city. Shipyards are located nearby. Highways and air service link Tuxpan with Mexico City, to the southwest, and with coastal urban centres. Ships can reach Tuxpan via the river or via an inland canal-and-lagoon route through the oil fields from Tampico to the north-northwest. Pop. (2000) 74,527.