Wikipedia
Rivas-Vaciamadrid is the 15th most populated city in the Community of Madrid, Spain. It belongs to the Madrid metropolitan area and is located just 15 km from central Madrid, to the south-east. In the southern part of the municipality, the Manzanares river flows into the Jarama, which is part of the Lower Manzanares and Jarama Rivers Regional Park. Almost three quarters of the municipality form part of the park, making it an important ecological centre with numerous lakes and various species of wildlife and fauna.
It has been one of the fastest growing municipalities in Spain in recent years, growing from 500 inhabitants in the 1980s to its current figure of 84,000. It is bordered to the north by Madrid and San Fernando de Henares, to the south by Arganda del Rey and San MartÃn de la Vega, to the east by Mejorada del Campo and Velilla de San Antonio, and to the west by Getafe and Madrid (the district of Villa de Vallecas.)
Rivas-Vaciamadrid municipality is the seventh richest in Spain, according to a 2014 list, and has the fourth lowest rate of population in risk of poverty, among municipalities with more than 50,000 inhabitants. It is the most populated city in Spain governed by United Left.