Polonje Tomaševečko is located in the City of Sveti Ivan Zelina, in Zagreb County at an elevation of 130 meters above sea level and it covers the area of 1.85 km² (0.71 sq. miles). According to the 2011 census report, there were 42 inhabitants. It is entirely populated by Croats. Nearby places: Keleminovec, Tomaševec, Hrastje, Polonje, Filipovići, Šalovec, Berislavec, Črečan, Komin and Mokrica Tomaševečka.