Buići is located in the municipality Župa Dubrovačka, in Dubrovnik-Neretva County at an elevation of 150 meters above sea level and it covers the area of 1.08 km² (0.42 sq. miles). According to the 2011 census report, there were 356 inhabitants. It is predominantly populated by Croats (97%), but also. Nearby places: Makoše, Mandaljena, Petrača, Martinovići, Čelopeci, Brašina, Grbavac, Srebreno, Kupari and Čibača.