Volta Redonda (Portuguese pronunciation: [ˈvɔwtɐ ʁeˈdõdɐ]) is the name of a municipality in the Rio de Janeiro state of Brazil with an area of 182.81 km², located from 350m to 707m above the sea level (22º31'23" S, 44º06'15" W) and with a population of 259,811 inhabitants (estimated in 2009). The area around the city has nearly 700,000 km². Its name (which is Portuguese for Round Turn) is due to the round shape of a curve in the Paraíba do Sul river around which the city was built.