settled (buildings or roads), or 0.4% is either rivers or lakes and or 0.8% is unproductive land. Of the built-up area, industrial buildings made up 1.7% of the total area while housing and buildings made up 18.4% and transportation infrastructure made up 14.4%. while parks, green belts and sports fields made up 1.7%. Of the forested land, 47.5% of the total land area is heavily forested and 2.3% is covered with orchards or small clusters of trees. Of the agricultural land, 7.9% is used for growing crops, 4.3% is used for orchards or vine crops, and 18.4% is used for alpine pastures. All the water in the municipality is flowing water. The municipality is in the Mendrisio district, on the Italian border. Since Pedrinate merged into Chiasso in 1976, it has been the most southerly municipality in Switzerland. Coat of arms The blazon of the municipal coat of arms is Argent lion passant holding a letter C gules standing on a carriage entrance azure. The carriage entrance refers to Chiasso location of the ancient road coming from Como and giving access to several places from Chiasso." Demographics Chiasso has a population () of . , 36.4% of the population are resident foreign nationals. In 1997–2007 the population changed at a rate of -2.8%. Most of the people () speak Italian (91.3%); German is second most common (2.5%) and Albanian is third (1.2%). Of the Swiss national languages (), 196 speak German, 71 people speak French, 7,048 people speak Italian, and 4 people speak Romansh. The remainder (401 people) speak another language. , the gender distribution of the population was 47.0% male and 53.0% female. The population was made up of 2,226 Swiss men (28.7% of the population), and 1,420 (18.3%) non-Swiss men. There were 2,774 Swiss women (35.7%), and 1,343 (17.3%) non-Swiss women. In there were 42 live births to Swiss citizens and 26 births to non-Swiss citizens, and in the same time span, there were 63 deaths of Swiss citizens and 27 non-Swiss citizen deaths. Ignoring immigration and emigration, the population of Swiss citizens decreased by 21 while the foreign population decreased by 1. There was 1 Swiss man who immigrated back to Switzerland and 3 Swiss women who emigrated from Switzerland. At the same time, there were 104 non-Swiss men and 94 non-Swiss women who immigrated from another country to Switzerland. The total Swiss population change in 2008