Households of less than four people continued to increase. In the ten years to 2000, two-person households went from some 600,000 to over one million. Single-person households grew by more than 100 % and by 2000 they had reached a figure of 1.4 million.
四人以下的家戶數量持續增加，二人戶在十年間從六十多萬戶增加到百餘萬戶，單人戶的成長率更是超過百分之百，二千年主計處人口普查時已達一百四十多萬戶。