Bosa is a town and comune in the province of Oristano (until May 2005 it was in the province of Nuoro), part of the Sardinia region of Italy. 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. 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.