Sacu is a commune in Caraș-Severin County, western Romania with a population of 1681 people. It is composed of three villages: Sacu, Săl…Sacu is a commune in Caraș-Severin County, western Romania with a population of 1681 people. It is composed of three villages: Sacu, Sălbăgelu Nou and Tincova.