Gilly is a municipality in the district of Nyon in the canton of Vaud in Switzerland. History Gilly is first mentioned in 1179 as de Iusliaco. In 1278 it was mentioned as Gillie. Geography Gilly has an area, , of . Of this area, or 55.0% is used for agricultural purposes, while or 34.7% is forested. Of the rest of the land, or 9.7% is settled (buildings or roads), or 0.1% is either rivers or lakes and or 0.1% is unproductive land. Of the built up area, housing and buildings made up 4.1% and transportation infrastructure made up 5.4%. Out of the forested land, 33.4% of the total land area is heavily forested and 1.3% is covered with orchards or small clusters of trees. Of the agricultural land, 26.2% is used for growing crops and 5.7% is pastures, while 23.2% is used for orchards or vine crops. All the water in the municipality is flowing water. The municipality was part of the Rolle District until it was dissolved on 31 August 2006, and Gilly became part of the new district of Nyon. It consists of the village of Gilly and the hamlet of Vincy. Coat of arms The blazon of the municipal coat of arms is Paly of six Argent and Gules, overall a Chevron Or; in chief Gules three Escallops Or. Demographics Gilly has a population () of . , 22.9% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 28.5%. It has changed at a rate of 26.1% due to migration and at a rate of 2.9% due to births and deaths. Most of the population () speaks French (638 or 83.1%), with German being second most common (47 or 6.1%) and English being third (30 or 3.9%). There are 7 people who speak Italian. The age distribution, , in Gilly is; 121 children or 13.0% of the population are between 0 and 9 years old and 139 teenagers or 14.9% are between 10 and 19. Of the adult population, 62 people or 6.6% of the population are between 20 and 29 years old. 133 people or 14.2% are between 30 and 39, 183 people or 19.6% are between 40 and 49, and 126 people or 13.5% are between 50 and 59. The senior population distribution is 77 people or 8.2% of the population are