The plain of Tajuña has long been inhabited.Neolithic remains have been found next to the site of an Iberian or Celtiberian village.
Roman roads and an irrigation system indicate later settlement. In the Tajuña Muslim influence, then Christians would consolidate this work. The Christians regained control over the area when Alfonso VI of Castilla took Toledo in 1085. In 1480, it became a dominion granted to the Marquis de Moya.
In Around the World in Eighty Days, the main square of Chinchón and most of the population were employed for the filming of a bullfight featuring Cantinflas.
The 1987 sci-fi movie The Falling is set in Chinchón
