Mont-la-Ville is a municipality of the canton of Vaud in Switzerland, located in the district of Morges. Mont-la-Ville is first mentioned in 1140 as in Monte Villa. Mont-la-Ville has an area, , of . Of this area, or 44.6% is used for agricultural purposes, while or 52.3% is forested. Of the rest of the land, or 2.9% is settled (buildings or roads) and or 0.3% is unproductive land. Of the built up area, housing and buildings made up 0.9% and transportation infrastructure made up 1.9%. Out of the forested land, 49.4% of the total land area is heavily forested and 2.9% is covered with orchards or small clusters of trees. Of the agricultural land, 12.5% is used for growing crops and 7.0% is pastures and 24.8% is used for alpine pastures. The municipality was part of the Cossonay District until it was dissolved on 31 August 2006, and Mont-la-Ville became part of the new district of Morges. The municipality is located in the southeast foothills of the Jura Mountains along the road to Mollendruz. It consists of the village of Mont-la-Ville and the hamlet of Chaume as well as scattered farm houses. The blazon of the municipal coat of arms is Per pale, Azure and Argent, two Arrowpoints counterchanged, overall in base a Coupeaux Or. Mont-la-Ville has a population () of . , 5.0% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 9%. It has changed at a rate of 12.5% due to migration and at a rate of -1.9% due to births and deaths. Most of the population () speaks French (317 or 96.6%), with German being second most common (5 or 1.5%) and Italian being third (3 or 0.9%). Of the population in the municipality 112 or about 34.1% were born in Mont-la-Ville and lived there in 2000. There were 146 or 44.5% who were born in the same canton, while 37 or 11.3% were born somewhere else in Switzerland, and 28 or 8.5% were born outside of Switzerland. In there were 4 live births to Swiss citizens and were 3 deaths of Swiss citizens and 1 non-Swiss citizen death.