Rapain Klanac is located in the municipality Brinje, in Lika-Senj County at an elevation of 491 meters above sea level and it covers the area of 6.04 km² (2.33 sq. miles). According to the 2011 census report, there were 20 inhabitants. It is predominantly populated by Serbs (95%), but also. Nearby places: Žuta Lokva, Prokike, Brlog, Vrzići, Brinje, Crni Kal, Melnice, Kompolje, Vratnik and Hrvatsko Polje.