Answer:
According to estimates from the 2019 Current Population Survey Annual Social and Economic Supplement (CPS ASEC), there are 543,000 same-sex married couple households and 469,000 households with same-sex unmarried partners living together. This compares to 61.4 million opposite-sex married and 8 million opposite-sex unmarried partner households. In addition, 191,000 children live with same-sex parents.
Households
There are 36.5 million one-person households, which is 28% of all households. In 1960, one-person households represented only 13% of all households.
Families
The number of families with own children under 18 present has declined in the last two decades. In 2019, 41% of all families lived with their own children under 18, compared to 45% in 2009 and 48% in 1999.
Marriage
In 2019, 32% of all adults age 15 and over had never been married, up from 23% in 1950.
The estimated median age to marry for the first time is 29.8 for men and 28.0 for women, up from ages 23.7 and 20.5, respectively, in 1947.
Over a quarter (26%) of children under age 15 living in married-couple families have a stay-at-home mother, compared to only 1% with a stay-at-home father.
Living arrangements
More than half (54%) of young adults ages 18 to 24 live in their parental home, compared to 16% of those ages 25 to 34.