Sirnach is a municipality in the district of Münchwilen in the canton of Thurgau in Switzerland. Geography Sirnach has an area, , of . Of this area, or 53.9% is used for agricultural purposes, while or 24.9% is forested. Of the rest of the land, or 19.1% is settled (buildings or roads), or 0.7% is either rivers or lakes and or 1.6% is unproductive land. Of the built up area, industrial buildings made up 9.4% of the total area while housing and buildings made up 0.8% and transportation infrastructure made up 0.5%. while parks, green belts and sports fields made up 7.5%. Out of the forested land, 22.8% of the total land area is heavily forested and 2.1% is covered with orchards or small clusters of trees. Of the agricultural land, 50.1% is used for growing crops, while 3.8% is used for orchards or vine crops. Of the water in the municipality, 0.6% is in lakes and 0.2% is in rivers and streams. In 1997 Horben, Sirnach and Wiezikon merged with Sirnach. Demographics Sirnach has a population () of . , 21.0% of the population are foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 8.3%. Most of the population () speaks German (85.5%), with Italian being second most common ( 4.7%) and Albanian being third ( 3.0%). , the gender distribution of the population was 50.1% male and 49.9% female. The population was made up of 2,643 Swiss men (38.7% of the population), and 778 (11.4%) non-Swiss men. There were 2,747 Swiss women (40.2%), and 659 (9.7%) non-Swiss women. In there were 48 live births to Swiss citizens and 17 births to non-Swiss citizens, and in same time span there were 46 deaths of Swiss citizens and 5 non-Swiss citizen deaths. Ignoring immigration and emigration, the population of Swiss citizens increased by 2 while the foreign population increased by 12. There was 1 Swiss man, 3 Swiss women who emigrated from Switzerland to another country, 41 non-Swiss men who emigrated from Switzerland to another country and 24 non-Swiss women who emigrated from Switzerland to another country. The total Swiss population change in 2008 (from all sources) was an increase of 59 and the non-Swiss population change was an increase of 37 people. This represents a population growth rate of 1.4%. The age distribution, , in Sirnach is; 696 children or 10.0% of