and 2.2% is covered with orchards or small clusters of trees. Of the agricultural land, 54.0% is used for growing crops, while 5.6% is used for orchards or vine crops. All the water in the municipality is in lakes. The municipality is located in Frauenfeld District, in the Seebachtal between Frauenfeld and Diessenhofen. It was formed in 1997 from the former municipal commune (Munizipalgemeinde) of Hüttwilen which included the former Ortsgemeinden of Hüttwilen (including Kalchrain), Nussbaumen and Uerschhausen. The lakes Nussbaumersee, Hüttwilersee and Hasensee are located in the municipality. Demographics Hüttwilen has a population () of . , 7.7% of the population are foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 2.6%. Most of the population () speaks German (93.6%), with Portuguese being second most common ( 1.4%) and Albanian being third ( 1.2%). , the gender distribution of the population was 50.8% male and 49.2% female. The population was made up of 664 Swiss men (46.3% of the population), and 65 (4.5%) non-Swiss men. There were 659 Swiss women (46.0%), and 46 (3.2%) non-Swiss women. In there were 15 live births to Swiss citizens and 1 birth to non-Swiss citizens, and in same time span there were 12 deaths of Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens increased by 3 while the foreign population increased by 1. There were 5 Swiss men who emigrated from Switzerland to another country, 4 Swiss women who emigrated from Switzerland to another country, 3 non-Swiss men who emigrated from Switzerland to another country and 1 non-Swiss woman who emigrated from Switzerland to another country. The total Swiss population change in 2008 (from all sources) was an increase of 13 and there was no non-Swiss population change. This represents a population growth rate of 0.9%. The age distribution, , in Hüttwilen is; 174 children or 12.0% of the population are between 0 and 9 years old and 176 teenagers or 12.1% are between 10 and 19. Of the adult population, 153 people or 10.6% of the population are between 20 and 29 years old. 172 people or 11.9% are between 30 and 39, 241 people or 16.6% are between 40 and 49, and 237 people or 16.3% are between 50 and 59. The senior population distribution is 159 people or 11.0% of the population are between 60 and 69 years old, 87