Waiting for marriage … Millennials are in no hurry to tie the knot. According to U.S. Census Bureau estimates, the average age of first marriage for women in 2017 was 27.4 years. For men, it was 29.5 years. That’s the longest Americans have ever waited to get married. For some reference … In 1990, the average age of first-time marriage for women was 24 … in 1980 it was 22 … and in the '50s, it was 20. (Women's Health)