Demographics
Ittigen has a population (as of December 2011) of 10,961. As of 2010, 19.6% of the population are resident foreign nationals. Over the last 10 years (2000-2010) the population has changed at a rate of -2.4%. Migration accounted for -1.3%, while births and deaths accounted for 0.1%.
Most of the population (as of 2000) speaks German (9,477 or 86.2%) as their first language, Italian is the second most common (283 or 2.6%) and French is the third (272 or 2.5%). There are 4 people who speak Romansh.
As of 2008, the population was 48.7% male and 51.3% female. The population was made up of 4,196 Swiss men (38.3% of the population) and 1,130 (10.3%) non-Swiss men. There were 4,602 Swiss women (42.0%) and 1,018 (9.3%) non-Swiss women. Of the population in the municipality, 1,701 or about 15.5% were born in Ittigen and lived there in 2000. There were 4,723 or 43.0% who were born in the same canton, while 2,104 or 19.1% were born somewhere else in Switzerland, and 2,034 or 18.5% were born outside of Switzerland.
As of 2010, children and teenagers (0–19 years old) make up 18.4% of the population, while adults (20–64 years old) make up 62.2% and seniors (over 64 years old) make up 19.4%.
As of 2000, there were 4,346 people who were single and never married in the municipality. There were 5,229 married individuals, 591 widows or widowers and 825 individuals who are divorced.
As of 2000, there were 1,923 households that consist of only one person and 199 households with five or more people. In 2000, a total of 4,964 apartments (94.4% of the total) were permanently occupied, while 198 apartments (3.8%) were seasonally occupied and 99 apartments (1.9%) were empty. As of 2010, the construction rate of new housing units was 1.1 new units per 1000 residents. The vacancy rate for the municipality, in 2011, was 0.5%.
The historical population is given in the following chart:
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