Bosa is situated about two-thirds of the way up the west coast of Sardinia, on a small hill, about 3 kilometres (2 miles) inland on the north bank of the Temo River.

The town has maintained a population of around 8,000 people for a significant amount of time, but has an urban character that has differentiated it from other locations in Sardinia.

[3] Agriculture and fishing play an important part in the city economy, thanks to the river valley near the coast surrounded by hills and highland plateaus.

The area was inhabited since prehistorical times, as attested by the presence of several domus de janas and nuraghe.

[4] In the early Middle Ages, as part of the Giudicato of Logudoro, it was a provincial capital.