from the silting-up of the Bünzersee. In the 1930s and the 1940s, several peat mining companies came into prominence, and an area comprising over 2 square kilometers was cleared, to a depth of 6 meters. As more factories were built, Boswil developed to an industrial site. Geography Boswil has an area, , of . Of this area, or 65.8% is used for agricultural purposes, while or 21.9% is forested. Of the rest of the land, or 10.9% is settled (buildings or roads), or 0.8% is either rivers or lakes and or 0.4% is unproductive land. Of the built up area, industrial buildings made up 1.2% of the total area while housing and buildings made up 5.4% and transportation infrastructure made up 3.7%. Out of the forested land, all of the forested land area is covered with heavy forests. Of the agricultural land, 48.3% is used for growing crops and 16.3% is pastures, while 1.2% is used for orchards or vine crops. All the water in the municipality is in rivers and streams. The municipality is located in the Muri district, on the eastern slope of the Lindenberg in the Bünz river valley. It consists of the village of Boswil. Coat of arms The blazon of the municipal coat of arms is Azure a Moon Or increscent with human face. Demographics Boswil has a population () of , 12.9% of the population are foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 1.5%. Most of the population () speaks German (92.2%), with Italian being second most common ( 2.2%) and Albanian being third ( 1.4%). The age distribution, , in Boswil is; 213 children or 9.0% of the population are between 0 and 9 years old and 284 teenagers or 12.0% are between 10 and 19. Of the adult population, 361 people or 15.2% of the population are between 20 and 29 years old. 310 people or 13.1% are between 30 and 39, 416 people or 17.5% are between 40 and 49, and 333 people or 14.0% are between 50 and 59. The senior population distribution is 223 people or 9.4% of the population are between 60 and 69 years old, 147 people or 6.2% are between 70 and 79, there are 70 people or 3.0% who are between 80 and 89,and there are 14 people or 0.6% who are 90 and older. the