Coordinates: 17°58′19″N 92°35′17″W / 17.972°N 92.588°W The 2007 Tabasco flood occurred in late October and early November 2007 in the Mexican states of Tabasco and Chiapas, in which as much as 80% of the former was left under water. At least 20,000 people were forced to seek emergency shelter. Over 1,000,000 residents were affected.
The southern Mexican state of Tabasco is bordered by the states of Veracruz to the west, Chiapas to the south, and Campeche to the north-east. To the east Tabasco borders with the Petén department of Guatemala, and to the north with the Gulf of Mexico. Tabasco is in the northern half of the Isthmus of Tehuantepec. The state capital is Villahermosa.
The hydrology of Tabasco is complex. Most of the state is a wide coastal plain crossed by rivers coming from the mountains further south in Chiapas and Guatemala. The two main rivers in the region are the Río Grijalva and the Río Usumacinta, which converge before draining into the Gulf of Mexico north of Villahermosa through the wildlife-rich wetlands known as the Pantanos de Centla.