The youngest and oldest Americans are the most likely to be single – 41% of those ages 18 to 29 and 36% of those 65 and older say they are single, compared with 23% of those 30 to 49 and 28% of those 50 to 64.

What percent of adults are single?

50.2 percent About 50.2 percent or 124.6 million American adults are single—in 1950, that number sat around 22 percent. Eric Klinenberg, sociology professor at New York University and author of Going Solo: The Extraordinary Rise and Surprising Appeal of Living Alone, examines this slow-but-steady shift towards happily single.