Brnobići is located in the municipality Kaštelir-Labinci, in Istra County at an elevation of 270 meters above sea level and it covers the area of 0.20 km² (0.08 sq. miles). According to the 2011 census report, there were 153 inhabitants. It is largely populated by Croats (89%), but also Serbs (4%) and Macedonians (3%). Nearby places: Rojci, Kaštelir, Valentići, Roškići, Labinci, Kovači, Krančići, Babići, Deklići and Tadini.