The total number of housekeeping households reached 4 813 103. In an absolute terms, this means that the number of the housekeeping households has increased by almost 830 thousands in last 30 years. Compared to the previous Census in 2011 there was a 10 % increase. The Census 2021 results also confirmed the continuation of long-term trends in the progress of the structure and the size of households.
In the household structure, the category households formed by one-couple family dominated. The most common type of one-couple family a husband/wife couple, although its share has decreased since 2011, still represents 77 % of one-couple families. On the other hand, the number of cohabiting couples has increased from 11 % to 23 %. Less than a fifth of family households represents lone-parent families. In this category prevail significantly lone-mothers over lone-fathers.
Almost 40 % of housekeeping households represent non-family households formed mainly by one-person households. The number of one-person households has been increasing steadily since 1991, in the last intercensal period even by one third.
The increase in the number of one-person families is associated to the gradual reduction of the average size of housekeeping household. In 2021, the average size of housekeeping household decreased to 2.15 persons. In addition to the one-person households, the number of two-persons households has increased as well. The households in the Czech Republic had most often one or two members. On the contrary, the number of households with 3 or more members has decreased.
The published results in the form of tables and cartograms up to the level of regions are available on the website scitani.cz. The data for all territorial units up to the level of municipalities and municipality or administrative districts are available in the CZSO Public Database.