Soleminis rises 200 metres above the boundary between the Campidanese plain and the first offshoots of Monte Serpeddì, in one of the most fertile areas of southern Sardinia, whose main cultivations are vineyards, olive groves and grains. This village with almost 2,000 inhabitants is in the Parteòlla region, a hilly area of the Campidano in the south-east, characterised by intense agropastoral activities and renowned for its baking, honey production and collection of aromatic herbs. Within its territory is part of the Campidano state forest, within which the pine forest of Sa Pira is unmissable, replete with Aleppo pines, and the Monti Arrubiu park nursery.
The first reference to the town in official documentation dates back to the 11th century, when it belonged to the Giudicato of Cagliari, before passing to that of Arborea and the Republic of Pisa. It cannot be excluded that the area was inhabited as early as the Roman and then Byzantine times.