Spilimbergo is a comune with a population of 11,961 in the Regional decentralization entity of Pordenone, in the Italian region of Friuli-Ven…Spilimbergo is a comune with a population of 11,961 in the Regional decentralization entity of Pordenone, in the Italian region of Friuli-Venezia Giulia. It is located on the right side of the Tagliamento river. The town is notable as the home of the Mosaic School of Friuli, which was founded in 1922 and has students from all over the world.