The most popular Christian denominations in the United States include the Roman Catholic Church, Southern Baptist Convention and United Methodist Church. As of 2015, the Roman Catholic Church in the United States has more than 69 million members.
The largest Protestant denomination is the Southern Baptist Convention, with more than 15 million members as of 2015. Other popular denominations include the Evangelical Lutheran Church, Assemblies of God and the Episcopal Church. Most denominations are categorized into one of three major categories: Catholic, evangelical or mainline. As of 2015, Gallup International reports that 41 percent of Americans regularly attend religious services, compared to 15 percent of French citizens and 10 percent of United Kingdom citizens.