Pasjak is located in the municipality Matulji, in Primorje-Gorski Kotar County at an elevation of 410 meters above sea level and it covers the area of 11.92 km² (4.60 sq. miles). According to the 2011 census report, there were 136 inhabitants. It is largely populated by Croats (84%), but also Slovenes (13%) and Italians (3%). Nearby places: Šapjane, Brdce, Rupa, Lipa, Žejane, Vele Mune, Veli Brgud, Male Mune, Lisac and Mali Brgud.