Same-sex marriage is legal in the Northern Mariana Islands.
Same-sex marriage . the United StatesSame-sex marriage is legal in all 50 states , the District of Columbia , Guam , the Northern Mariana Islands , Puerto Rico , the United States Virgin Islands and some tribal jurisdictions . Same-sex marriage in the Northern Mariana Islands was legalized by the United States Supreme Court 's landmark ruling finding it unconstitutional to restrict same-sex marriage rights in Obergefell v. Hodges on June 26 , 2015 .