Demographics
Wil has a population (as of 31 December 2011) of 18,167. As of 2007, about 25.8% of the population was made up of foreign nationals. Of the foreign population, (as of 2000), 272 are from Germany, 776 are from Italy, 1,876 are from ex-Yugoslavia, 135 are from Austria, 309 are from Turkey, and 578 are from another country. Over the last 10 years the population has grown at a rate of 8.4%. Most of the population (as of 2000) speaks German (85.1%), with Albanian being second most common ( 4.5%) and Italian being third ( 3.0%). Of the Swiss national languages (as of 2000), 13,943 speak German, 60 people speak French, 488 people speak Italian, and 26 people speak Romansh.
The age distribution, as of 2000, in Wil is; 1,639 children or 10.0% of the population are between 0 and 9 years old and 1,836 teenagers or 11.2% are between 10 and 19. Of the adult population, 2,286 people or 13.9% of the population are between 20 and 29 years old. 2,629 people or 16.0% are between 30 and 39, 2,314 people or 14.1% are between 40 and 49, and 2,022 people or 12.3% are between 50 and 59. The senior population distribution is 1,621 people or 9.9% of the population are between 60 and 69 years old, 1,268 people or 7.7% are between 70 and 79, there are 678 people or 4.1% who are between 80 and 89,and there are 98 people or 0.6% who are between 90 and 99, and 1 person who is 100 or more.
In 2000 there were 2,829 persons (or 17.3% of the population) who were living alone in a private dwelling. There were 4,034 (or 24.6%) persons who were part of a couple (married or otherwise committed) without children, and 7,421 (or 45.3%) who were part of a couple with children. There were 954 (or 5.8%) people who lived in single parent home, while there are 79 persons who were adult children living with one or both parents, 90 persons who lived in a household made up of relatives, 174 who lived in a household made up of unrelated persons, and 811 who are either institutionalized or live in another type of collective housing.
In the 2007 federal election the most popular party was the SVP which received 31.7% of the vote. The next three most popular parties were the CVP (21.9%), the SP (14.9%) and the FDP (12.5%).
In Wil about 69.2% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule). Out of the total population in Wil, as of 2000, the highest education level completed by 3,538 people (21.6% of the population) was Primary, while 6,179 (37.7%) have completed their secondary education, 2,158 (13.2%) have attended a Tertiary school, and 818 (5.0%) are not in school. The remainder did not answer this question.
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