Cohabitation statistics show married-couple households at 47%
The latest American Community Survey data place married couples at 47 percent of all households, a level that ends their long-standing majority position. At the same time the number of unmarried-couple households climbed to 9.6 million in 2024. That total reflects an increase of roughly 2.4 million such households since 2014. The parallel rise shows that cohabitation has expanded even as marriage rates have fallen.
Cohabiting households grew faster than married-couple households in 50 of 51 state-level jurisdictions over the decade, with Alaska the sole exception. Across 367 comparable metropolitan areas, 319 recorded faster growth in cohabiting households. The share of cohabiting couples among all coupled households in those metros rose from 11.5 percent in 2014 to 13.5 percent in 2024. Younger adults accounted for much of the increase, with 12.3 percent of those ages 18 to 34 living with an unmarried partner compared with 6.9 percent of adults ages 35 to 64.
Household composition has shifted markedly over the past half century. Married-couple households fell from 66 percent of all households in 1975 to 47 percent in 2025. One-person households rose from 20 percent to 29 percent over the same span. The share of married-couple households that include their own children under 18 declined from 54 percent to 37 percent. Median age at first marriage increased by 7.3 years for both men and women, reaching 30.8 for men and 28.4 for women.
Cohabitation now precedes most marriages. Bowling Green State University data show that 80 percent of marriages formed between 2020 and 2022 were preceded by cohabitation. Pew Research Center findings for adults ages 38 to 43 in 2023 indicate that 77 percent have lived with an unmarried partner at some point. Among those who ever cohabited, 67 percent later married a former live-in partner. Still, 28 percent of ever-cohabiters in that age group had never married, and 26 percent had experienced a cohabiting relationship that lasted five years or longer.
Educational attainment correlates with different patterns after cohabitation begins. Among adults who had cohabited, 77 percent of those with a bachelor’s degree or higher eventually married a live-in partner, compared with 59 percent of those with a high school education or less. Longer cohabiting relationships were more common among the less educated group: 34 percent had lived with a partner for at least five years versus 17 percent of college graduates. The share who had never married also differed, reaching 36 percent among cohabiters with a high school education or less and 18 percent among graduates.
Gallup polling from August 2026 found renewed emphasis on marriage when children are involved. Thirty-nine percent of Americans viewed legal marriage as very important for couples raising children together, up from 29 percent in 2020 and returning to the 2013 level, though still below the 49 percent recorded in 2006. Attitudes toward marriage for couples planning to spend their lives together remained steadier, with 37 percent calling it very important compared with 38 percent in 2020.
The Census Bureau issued its 2025 American Community Survey one-year estimates on October 29, 2026. Envision Family Law’s analysis of the preceding decade, together with findings from Pew, Gallup, and Bowling Green State University, supplies additional context on the relationship choices behind the household numbers.
