Vadalj is located in the municipality Primošten, in Šibenik-Knin County at an elevation of 80 meters above sea level and it covers the area of 1.32 km² (0.51 sq. miles). According to the 2011 census report, there were 87 inhabitants. It is predominantly populated by Croats (98%), but also. Nearby places: Vezac, Oglavci, Ložnice, Jarebinjak, Ložnice, Široke, Podglavica, Sapina Doca, Kruševo and Primošten Burnji.