Troistorrents (; ) is a municipality in the district of Monthey in the canton of Valais in Switzerland. Geography Troistorrents has an area, , of . Of this area, or 36.6% is used for agricultural purposes, while or 51.8% is forested. Of the rest of the land, or 7.4% is settled (buildings or roads), or 0.6% is either rivers or lakes and or 3.6% is unproductive land. Of the built up area, housing and buildings made up 4.6% and transportation infrastructure made up 2.3%. Out of the forested land, 47.5% of the total land area is heavily forested and 2.9% is covered with orchards or small clusters of trees. Of the agricultural land, 0.0% is used for growing crops and 8.9% is pastures and 27.1% is used for alpine pastures. All the water in the municipality is flowing water. The municipality includes the village of Morgins. It is located in the Val d'Illiez. It is the starting point to reach Morgins via the Val de Morgins. The name Troistorrents comes from the Latin "trans torrentium" which means "on the other side of the torrent". Coat of arms The blazon of the municipal coat of arms is In azure with three Fir trees Vert stemmed proper, planted on three mountains of the same between which flow two mountain streams in pale Argent which fall into a third stream in fess; the mountain in the middle charged with a woman sitting, clothed Gules and holding on her knees her child dressed Argent and throwing grain Or. Demographics Troistorrents has a population () of . , 10.4% of the population are resident foreign nationals. Over the last 10 years (2000–2010 ) the population has changed at a rate of 12.7%. It has changed at a rate of 10% due to migration and at a rate of 4.2% due to births and deaths. Most of the population () speaks French (3,381 or 94.8%) as their first language, German is the second most common (90 or 2.5%) and English is the third (23 or 0.6%). There are 19 people who speak Italian and 1 person who speaks Romansh. , the population was 50.1% male and 49.9% female. The population was made up of 1,841 Swiss men (44.4% of the population) and 236 (5.7%) non-Swiss men. There were 1,857 Swiss women (44.8%) and 209 (5.0%) non-Swiss women. Of the population in the municipality, 1,727 or about