Santos Dumont (formerly known as Palmira) is a municipality in southern Minas Gerais state, Brazil. The population (2006) is estimated to be 49,137 and the total area of the municipality is 639.1 km² (246.8 sq mi). It lies at an elevation of 839 m (2,753 ft) just off the main interstate highway, BR040, between the urban centers of Barbacena (north) and Juiz de Fora (south). It is 240 km (150 mi) from the state capital, Belo Horizonte, and 220 km (140 mi) from Rio de Janeiro.