Trešćerovac is located in the City of Ozalj, in Karlovac County at an elevation of 118 meters above sea level and it covers the area of 0.91 km² (0.35 sq. miles). According to the 2011 census report, there were 86 inhabitants. It is entirely populated by Croats. Nearby places: Polje Ozaljsko, Mirkopolje, Zorkovac na Kupi, Zorkovac, Trg, Pesak, Vukoder, Podbrežje, Brlenić and Vukšin Šipak.