Set in the southern part of the Campidano plains, the town enjoys a very fertile soil crossed by several rivers, in particular the Rio Mannu. Decimoputzu is a town with a population of around 4500, and the name is first mentioned in the Middle Ages in the form of Decimopozzo or Decimo Pupussi when the territory was part of the Curatoria di Gippi within the Giudicato di Cagliari, and later the Reign of Sardinia, during the Aragonese-Spanish dominion. The town centre has two main churches: the parish church of Nostra Signora delle Grazie and the church of San Giorgio. The church of San Basilio is in the countryside outside the town. The surrounding land is characterised by greenhouses and vast fields of artichokes.