The United States is home to about 7 percent of all Catholics in the world. As of 2010, an estimated 23 percent of U.S. adults and 24 percent of the total U.S. population are Catholic. The U.S. Catholic population has lost more members than it has gained from denominational switching.
Definition of civil union. : the legal status that ensures to same-sex couples specified rights and responsibilities of married couples.
Definition of union: A group of workers joined together in a specific type of organization for the purpose of improving their working conditions as well as to help in promoting the common interests of the group.