Kosoriga is located in the City of Buzet, in Istra County at an elevation of 240 meters above sea level and it covers the area of 0.57 km² (0.22 sq. miles). According to the 2011 census report, there were 19 inhabitants. It is entirely populated by Croats. Nearby places: Račički Brijeg, Račice, Korelići, Rimnjak, Krušvari, Draguć, Oslići, Martinci, Juradi and Medveje.