I would have thought it would have been more countries although I guess it is 24 too many as it is. Jesus was clear that it is men and women who marry.
The recently signed Nashville Statement declares in Article One that:
WE AFFIRM that God has designed marriage to be a covenantal, sexual, procreative, lifelong union of one man and one woman, as husband and wife, and is meant to signify the covenant love between Christ and his bride the church.
WE DENY that God has designed marriage to be a homosexual, polygamous, or polyamorous relationship. We also deny that marriage is a mere human contract rather than a covenant made before God.
The following is from: Countries That Allow Gay Marriage Around The World | Pew Research Center
“A growing number of governments around the world are considering whether to grant legal recognition to same-sex marriages. So far, two dozen countries have enacted national laws allowing gays and lesbians to marry, mostly in Europe and the Americas. In Mexico, some jurisdictions allow same-sex couples to wed, while others do not.”