DC metro cohabitation ranking reveals stark capital-metro divide
Washington, DC, posted the highest share of unmarried cohabiting couples among all 51 state-level jurisdictions in 2024, with unmarried partners making up 24.3 percent of coupled households. The wider Washington metropolitan area recorded an 11.2 percent share, ranking 50th among the 53 largest U.S. metros. This 13.1-percentage-point gap illustrates how sharply relationship patterns diverge when measured inside versus outside the District boundary.
The District’s share rose 4.5 percentage points from 19.8 percent in 2014 to 24.3 percent in 2024. It finished 4.3 points ahead of second-place Vermont, which reached 20.0 percent after a six-point gain. The next nine jurisdictions trailed further behind. New Mexico stood at 17.5 percent, Nevada at 17.2 percent, Rhode Island at 17.0 percent, Maine at 16.7 percent, Oregon at 16.3 percent, Wisconsin at 15.4 percent, Washington state at 15.2 percent, and Arizona at 15.1 percent. Envision Family Law’s ranking draws on American Community Survey data for both years.
Among the 53 largest metropolitan areas, Las Vegas led at 17.6 percent. Milwaukee followed at 17.2 percent, with Rochester and Providence tied at 16.9 percent and Buffalo at 16.5 percent. Los Angeles recorded 15.0 percent, Chicago 13.0 percent, and New York 12.2 percent. Washington’s 11.2 percent placed it 50th, 3.8 points behind Los Angeles, 1.8 points behind Chicago, and 1.0 point behind New York. The metro’s low position stands in marked contrast to the District’s national lead.
Unmarried-couple households grew faster than married-couple households in 50 of 51 state-level jurisdictions between 2014 and 2024, with Alaska the sole exception. The pattern held across 319 of 367 metros with comparable data. Nationally, the share of coupled households that were unmarried rose from 11.5 percent to 13.5 percent over the decade. Washington’s metro ranking therefore reflects a broader national shift even while remaining low among large urban regions.
Separate Census Bureau research released in April 2026 found that same-sex couples accounted for 3.2 percent of all households in the District in 2024, the highest share among states and state equivalents, compared with roughly 1.0 percent nationally. That measure covers both married and unmarried same-sex couples and uses all households as its denominator. Envision Family Law’s cohabitation statistic instead examines only coupled households and does not isolate same-sex pairs, so the two figures describe distinct household characteristics and cannot quantify any overlap.
The Census Bureau issued its 2025 American Community Survey one-year estimates on October 29, 2026. Envision Family Law’s 2014–2024 baseline supplies the most recent detailed jurisdiction and metro rankings available; the firm has not yet updated those rankings with the new release.
