Tadini is located in the municipality Kaštelir-Labinci, in Istra County at an elevation of 209 meters above sea level and it covers the area of 2.16 km² (0.83 sq. miles). According to the 2011 census report, there were 65 inhabitants. It is predominantly populated by Croats (96%), but also. Nearby places: Babići, Krančići, Mekiši kod Kaštelira, Kaštelir, Brnobići, Valentići, Ohnići, Rojci, Kovači and Labinci.