A new report by the Williams Institute at UCLA School of Law finds that, as of June 2025, there are an estimated 823,000 married same-sex couples in the U.S. This figure is more than double the 390,000 same-sex couples who were married as of June 2015, when the U.S. Supreme Court extended marriage equality nationwide. Nearly 300,000 children under 18 are being raised by married same-sex couples.
