Kosinožići is located in the City of Poreč, in Istra County at an elevation of 65 meters above sea level and it covers the area of 2.78 km² (1.07 sq. miles). According to the 2011 census report, there were 102 inhabitants. It is mostly populated by Croats (73%), but also Serbs (10%) and Bosniaks (8%). Nearby places: Vržnaveri, Antonci, Veleniki, Blagdanići, Dekovići, Nova Vas, Brčići, Mihelići, Mihatovići and Radoši kod Žbandaja.