Territory, population and environment
The province of Torino contains the greatest number of cities in Italy (315) and ranks fourth in geographical size, just behind the province of Cuneo. The territory of Torino has a population density of 337 inhabitants per square kilometer and a diverse topography: 25% hilly, 29% flat, and 45% mountainous.
More than 60% of its population lives outside the city of Torino, and more than a third live in mountain communities. At the end of 2010, the number of inhabitants was calculated at 2.3 million -a 0.2% growth from the preceding year, with women making up 52% of the total and immigrants making up 9%, a 3% growth in the immigrant population from the previous year. The most populous immigrant community in the Torino area is Romanian, making up 46% of the immigrant population, followed by Moroccans, Albanians, and Peruvians.
The province of Torino is also equipped with an excellent infrastructure: economic indicators of infrastructure levels, compiled annually by the G. Tagliacarne Institute, shows an index of 106.0 (with Italy = 100) for the province's infrastructure, on par with the score recorded for the Northwest (108.2) and significantly
greater than Piedmont's (85.0).
One of the main features of the province's infrastructure is the Torino Caselle Airport, which, after two consecutive years of decreasing passenger numbers, in 2010 showed an increase of 10% over the preceding year. The average weekly number of flights equaled 430, including 230 domestic and 230 international. Freight transportation (8,351 tons) also showed an increase (+27.5% in comparison with 2009).
Growing alongside infrastructure is environmental awareness, both in protection and preservation and in planning for greater livability in the territory. One example of this growth is sorted trash collection, which today represents nearly half of the total urban refuse collected in the province of Torino. Starting in 2002, sorted trash collection per capita in the subalpine area has shown a constant rate of growth, while the opposite is true for unsorted trash collection. The most recent data available (2009) shows that the level of sorted trash collection per capital in the province of Torino is nearly equal to unsorted.