The objective of this study was to determine the various dimensions of social
capital in Tehran and its association with socioeconomic variables. Two thousand, four
hundred and eighty-four persons participated in the study through multi-stage stratified
sampling in Tehran. The study questions were extracted from the World Bank integrated
questionnaire. While respondents obtained over 50 % of the attainable scores in the ‘trust’,
‘cooperation’, ‘social cohesion’, and ‘political action’ dimensions, they obtained only
18.9 % of the attainable scores in the ‘networks’ dimension. The respondents in age groups
older than 45 had higher trust scores than respondents in the 18–25 age group. Men had
higher ‘network’ and ‘social cohesion’ scores than women (p B 0.001). Respondents in the
poorest wealth quintile had lower ‘networks’ and ‘social cohesion’ scores than the richest
group and ‘political action’ scores higher than the richest group (p = 0.038). The lowest
score in ‘Tehranians’ social capital was in the groups and networks dimension. Therefore
designing effective interventions for such activities, particularly in women’s groups, is
a priority.