Strmec is located in the City of Sveta Nedjelja, in Zagreb County at an elevation of 120 meters above sea level and it covers the area of 10.45 km² (4.03 sq. miles). According to the 2011 census report, there were 3.886 inhabitants. It is predominantly populated by Croats (97%), but also. Nearby places: Orešje, Bestovje, Vrbovec Samoborski, Medsave, Sveta Nedelja, Novaki, Brezje, Domaslovec, Savršćak and Farkaševec Samoborski.