The survey, published by the Singapore Department of Statistics June 30, also documented shifts in home language and educational attainment across the city-state.
Singlehood rose among residents aged below 40 compared with 2020. The share of unmarried women aged 25 to 29 climbed from 69% to 73.4%, while among men the sharpest increase came in the 30 to 34 group, rising from 41.9% to 47.6%.
Among those in their 40s, men with lower educational attainment were more likely to remain single. Women aged 30 to 49 with a university degree or higher, by contrast, recorded a higher rate of never having married than peers in other educational groups.
Despite the rising proportion of single adults, the traditional family of a married couple and their children remained the most common household type, accounting for 47.6% of resident households. That was down from 50.4% in 2020.
The survey also reflected a continuing trend toward smaller families. The average number of children born to ever-married women aged 40 to 49 fell from 1.76 in 2020 to 1.67 in 2025. The proportion of women with two or more children declined from 62.5% to 58.4%.
