Estimated gay couples in the United States as of 2009.
U.S. jurisdictions that currently allow gay marriage: Massachusetts, Connecticut, Iowa, New Hampshire, Vermont, and the District of Columbia.
States that give benefits to same-sex couples under a different label like “civil union” or domestic partnership: California, Nevada, New Jersey, Oregon, Washington, Illinois.
States with constitutional amendments banning gay marriage. Georgia passed a constitutional gay marriage ban in 2004.
Nations that grant more rights to same-sex couples than the United States, ranging from marriage to domestic partner recognition.
Sources: U.S. Census, Williams Institute, Lambda Legal