PEW RESEARCH - The share of U.S. adults living without a romantic partner has declined slightly, from 44% in 2019 to 42% in 2023, with modest increases in married adults (from 50% to 51%) and those cohabiting with a partner (from 6% to 7%). Those with lower education levels are more likely to be unpartnered. The decrease in unpartnered adults is attributed to fewer divorces rather than an increase in new marriages, with the divorce rate hitting a record low of 1.4% in 2023.