Same-sex unions in the United States

Same-sex unions in the United States are available in various forms in all states and territories, except American Samoa. All states have legal same-sex marriage, while others have the options of civil unions, domestic partnerships, or reciprocal beneficiary relationships. The federal government only recognizes marriage and no other legal union for same-sex couples.

Hawaii was the first state to recognize limited legal same-sex unions, doing so in 1997 in the form of reciprocal beneficiary relationships.