Almost all Singaporeans lived in small nuclear families. Although both Chinese and Indian traditions favored large extended families, such families were always rare in immigrant Singapore where neither the occupational structure, based on wage labor, or the housing pattern, characterized by small, rented quarters, favored such family forms. In the 1980s, families were valuable in that most individuals as a matter of course lived with their parents until marriage and after marriage maintained a high level of interaction with parents, brothers, and sisters. likely the most common leisure activity in Singapore was the Sunday visit to the grandparents for a meal and relaxed conversation with brothers, sisters, in-laws, uncles and aunts, cousins, and other assorted kin. Although the age of marriage increased in the 1970s and 1980s, reaching a mean 28.5 years for grooms and 25.8 years for brides in 1987, Singapore remained a society in which it was assumed that everyone would marry, and marriage was a normal aspect of fully adult status.

Divorce rates in Singapore were low. Interethnic marriages were somewhat more likely to end in divorce than were marriages within an ethnic group. During the 1980s the divorce rate for Malays fell, while it rose for the other ethnic groups. In 1987 there were 23,404 marriages in Singapore, and 2,708 divorces, or 115 divorces for every 1,000 marriages. The figures included 4,465 marriages under the Muslim Law Act, which regulated the marriage, divorce, and inheritance of Muslims, and 796 divorces under the same act, for a Muslim divorce rate of 178 divorces for every 1,000 marriages. Marriages under the Women's Charter -which regulated the marriage and divorce of non-Muslims totaled 18,939, and divorces under that law were 1,912, for a non-Muslim divorce rate of 100 per 1,000 marriages. The differential rates of divorce for ethnic groups may have suggested greater differences than were in fact the case. Situations that for Malay families resulted in prompt, legal divorce were sometimes tolerated or handled informally by Chinese or Indian families for whom the social stigma of divorce was greater and the barriers to legal separation higher. For all ethnic groups, the most common source of marital breakdown was the inability or unwillingness of the husband to contribute to maintaining the household. This sometimes led to desertion, which was the most common ground for divorce.