Valbonaša is located in the municipality Medulin, in Istra County at an elevation of 50 meters above sea level and it covers the area of 0.65 km² (0.25 sq. miles). According to the 2011 census report, there were 34 inhabitants. It is largely populated by Croats (79%), but also Bosniaks (13%) and Italians (5%). Nearby places: Vinkuran, Vintijan, Banjole, Pješčana Uvala, Pomer, Pula, Jadreški, Premantura, Medulin and Šišan.