The Municipality of Lajkovac is located in Western Serbia, in the centre of the Kolubara Valley, at 44 degrees and 30 minutes of northern latitude, and 20 degrees and 15 minutes of east longitude. The terrain of Lajkovac is flat and hilly, at an average altitude of 122 meters. It has pleasant moderate continental climate. The Kolubara River, a tributary of the Sava River, flows near the centre of Lajkovac. According to the preliminary results of the 2011 census, there were around 15,341 residents in 5,160 households in the Municipality. There were 5,356 residents in the urban area.