In some states, a domestic partnership is a legally recognized relationship between members of a same-sex couple, with rights similar to those of a marriage relationship.
As of my knowledge cutoff in 2023, North Dakota does not legally recognize domestic partnerships. The state does not offer a registry for domestic partnerships for same-sex or opposite-sex couples, and thus, couples in domestic partnerships do not have the same state-level legal rights, protections, and benefits as those afforded to married couples. Same-sex marriage has been legal nationwide since the Supreme Court ruling in Obergefell v. Hodges in 2015, which means that same-sex couples in North Dakota can marry and receive all the associated legal rights. However, for those who choose not to marry, there is no formal legal structure for their relationship in the state of North Dakota.