Final answer:
African American has the highest proportion of children living with single mothers while White has the highest proportion of children living with single fathers in the United States.
Step-by-step explanation:
The race-ethnicity with the highest proportion of children living with single mothers in the United States is African American. This can be attributed to cultural factors and historical context. According to U.S. Census statistics, children living with only their mother are more likely to live near or below the poverty level. Six in ten children living with single mothers are in or near poverty compared to 45 percent for divorced mothers.
On the other hand, the race-ethnicity with the highest proportion of children living with single fathers in the United States is White. Economic factors and job opportunities play a role in this trend. While single mothers still make up the majority of single parents, millions of fathers are also raising their children alone, and a significant number of these single fathers have never been married.