Ogens is a municipality in the district of Gros-de-Vaud in the canton of Vaud in Switzerland. Ogens is first mentioned in 1166 as Ogens. Ogens has an area of . Of this area, or 61.3% is used for agricultural purposes, while or 30.2% is forested. Of the rest of the land, or 7.9% is settled (buildings or roads). Of the built up area, housing and buildings made up 4.4% and transportation infrastructure made up 3.2%. Out of the forested land, 28.7% of the total land area is heavily forested and 1.5% is covered with orchards or small clusters of trees. Of the agricultural land, 49.3% is used for growing crops and 11.7% is pastures. The municipality was part of the Moudon District until it was dissolved on 31 August 2006, and Ogens became part of the new district of Gros-de-Vaud. The municipality is located between Echallens and Payerne. It consists of the linear village of Ogens, on a plateau along the right bank of the Mentue river. The blazon of the municipal coat of arms is Per pale Gules and Vert, overall a Billy-goat rampant Argent. Ogens has a population () of . , 6.5% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 14.3%. It has changed at a rate of 7.8% due to migration and at a rate of 6.9% due to births and deaths. Most of the population () speaks French (219 or 96.5%) with the rest speaking German Of the population in the municipality 71 or about 31.3% were born in Ogens and lived there in 2000. There were 99 or 43.6% who were born in the same canton, while 32 or 14.1% were born somewhere else in Switzerland, and 16 or 7.0% were born outside of Switzerland. In there was 1 live birth to Swiss citizens and 1 birth to non-Swiss citizens, and in same time span there were 3 deaths of Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens decreased by 2 while the foreign population increased by 1. At the same time, there were 2 non-Swiss men and 1 non-Swiss woman who immigrated from another country to Switzerland.