Same-sex marriage has been legal in Querétaro since 13 November 2021. On 22 September 2021, the state Congress passed a law legalizing same-sex marriage in Querétaro. The law was published in the state's official gazette on 12 November, and took effect the following day. Previously, same-sex couples could marry in eight of the eighteen municipalities of Querétaro, comprising 60% of the state's population, despite a state law prohibiting same-sex marriage.