In absolute figures (estimate): 1  4,968,429 young people under 15 years old ( 2,534,785 males / 2,433,645 females) 2  10,495,608 persons between 15 and 64 years old ( 5,175,172 males / 5,320,437 females) 3  1,062,137 persons above 64 years old ( 510,328 males / 551,644 females)
Median income for a one-person household is $27,237 while typical income for a two-person household is $58,121. Median income rises as household size increases, peaking at 4-person households with a median income of $75,343.
Cohabitation is not the same as marriage when it comes to outcomes. Compared to married couples, cohabiting couples tend to report poorer relationship quality and less psychological and financial wellbeing. 6. 2  Men in cohabiting households tend to have lower earnings than married men with families. 3  Based on the 1990 census, the average income of males in married-couple families ($34,533) was twice that of males in co-habiting couple families ($17,889).