Switzerland has changed a great deal in the last century, when it was common for extended families to live together. Since the 1980s, other family models have become more common, such as single-parent families and blended families in which couples form a new family with the children from their former marriages.
According to the results of the latest census in 2000, there are a total of 31.154.000 private households in Switzerland. Single person households number 11.209.000 and 19.317.000 are households of families.
As of the 2000 census, the majority of households consist of two parents with two children (43%), followed by one child (40%), three children (13%) and four or more (4%).