Many studies have examined structural factors and their determining role in increasing the age of marriage, but the current conditions of Iranian society, considering cultural changes, require examining the role of value and attitudinal factors on developments in the family sphere. Secondary analysis of data in 2023 shows that in this province, the average age of marriage for girls and boys has increased by almost one year compared to the entire country for both sexes. Multivariate analysis of the findings indicates that in addition to structural variables such as employment status, socio-economic status, and level of education, which have a significant positive and direct effect on the age of marriage for boys, the contribution of value and attitudinal variables such as the same educational level, the economic level of the girl and boy, and the relationship of friendship before marriage also had a direct and positive effect on the age of marriage of Isfahan youth. Therefore, it seems that a series of structural and value developments in Isfahan families have led to the tendency for young people to marry at an older age.