The whereabouts of Ciudad del Plata were formerly known as Rinc�n de la Bolsa. It was a group of independent fragments, which became integrated into one populated centre, as a result of the westward expansion of the metropolitan area of Montevideo.
According to the legislative decree N� 18.052, "the area enclosed by the River Santa Lucia, the Rio de la Plata and kilometer 35 of National Route 1" received city status under the name "Ciudad del Plata" on 25 October 2006, "integrating the areas Delta del Tigre y Villas, Playa Pasqual, Parquet Postal, Monte Grande and Santa Monica"
