Donji Kraljevec is located in the municipality Hrašćina, in Krapina-Zagorje County at an elevation of 210 meters above sea level and it covers the area of 0.76 km² (0.29 sq. miles). According to the 2011 census report, there were 135 inhabitants. It is entirely populated by Croats. Nearby places: Budinščina, Gornji Kraljevec, Hrašćina, Jarek Habekov, Trgovišće, Domovec, Krapinica, Gornjaki, Sveti Križ and Šćepanje.