Families in Finland 2018, by family type

In 2018, the most common family type in Finland was a married couple without children. The number of married couples with children has decreased for several decades, while the number of married couples without children has been on the rise. The share of families of co-habiting couples was 23 percent, of which couples without children made up 15 percent and couples with children eight percent.

After the amendment to the Marriage Act in March 2017, many registered partners changed their partnership into a marriage and new registered partnerships can no longer be formed. However, as of 2018, there were still 1,282 registered same-sex couples.

Number of families in Finland in 2018, by family type

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Release date

January 2020



Survey time period


Supplementary notes

The source adds the following information: "Families are classified according to whether the spouses are married, cohabiting or in a registered partnership and whether they have children. In addition to this, there one-parent families are considered as a separate category. There is no limit set as to the age of a child."

*The figures have been added up.

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