The Center-West consists of the states of Goiás, Mato Grosso, and Mato Grosso do Sul (separated from Mato Grosso in 1979), as well as the Federal District, site of Brasília, the national capital. Until 1988 Goiás State included the area that then became the state of Tocantins in the North.
The Center-West has 1,612,077 square kilometres (622,426 sq mi) and covers 18.9% of the national territory. Its main biome is the cerrado, the tropical savanna in which natural grassland is partly covered with twisted shrubs and small trees. The cerrado was used for low-density cattle-raising in the past but is now also used for soybean production. There are gallery forests along the rivers and streams and some larger areas of forest, most of which have been cleared for farming and livestock. In the north, the cerrado blends into tropical forest. It also includes the Pantanal wetlands in the west, known for their wildlife, especially aquatic birds and caymans. In the early 1980s, 33.6% of the region had been altered by anthropic activities, with a low of 9.3% in Mato Grosso and a high of 72.9% in Goiás (not including Tocantins). In 1996 the Center-West region had 10.2 million inhabitants, or 6% of Brazil's total population. The average density is low, with concentrations in and around the cities of Brasília, Goiânia, Campo Grande, and Cuiabá. Living standards are below the national average. In 1994 they were highest in the Federal District, with per capita income of US$7,089 (the highest in the nation), and lowest in Mato Grosso, with US$2,268.