The census also reveals that 34% of households in Belgium are made up of just one person.
The percentage of people living alone is higher in the big cities with around half of all households in Brussels being made up of people living alone.
One in ten Belgian households are one-parent families. There are also big regional difference in the level of home-ownership with Limburg have the most owner-occupiers.
A census is held every ten years in Belgium. The first census of the Belgian population was carried out in 1846. Not only is the number of people living here counted, but also the composition of families and households.
The data derived from the census is used by law-makers, scientists and international organisations such as the OECD and the UN.