Back ] Next ]            Home           Demography Index



Marriage And Fertility


The average size of families depends primarily on birth control, abortion, the ability to afford children, the age at marriage and the proportion of those who never marry. Birth control did not start to have any impact until the latter part of the nineteenth century. Abortion was not legalised in Britain until 1967.

Married women had an average of five to six children in the period 1600-1799. In the 1850s nearly two thirds of married women ended up having five or more children, whereas today nearly two thirds of those who married some twenty years before have only one or two children.

Illegitimate births in the seventeenth century ranged from 2-2.5% of all births and increased to about 3.4% in the eighteenth century. There were wide regional variations. The dramatic increase in the latter part of the twentieth century may be a temporary phenomena, or more probably a changed concept of the role of the marriage ceremony as a prerequisite to having children.

The average age at first marriage was about 28 for men and 26 for women in the seventeenth century. The average age at first marriage declined to about 23 years for women by about 1851 and has remained at about that level since.

The proportion of those who never married is significantly higher in the seventeenth century (20-23% of women and a higher percentage for men; the difference presumably caused by the remarriage of widowers).

Top Of Page