Pennsylvania, especially in the west and in the Pittsburgh area, has one of the largest communities of Presbyterians in the nation, being the third highest by percentage of population and the largest outright in membership. The Presbyterian Church (USA), with about 250,000 members and 1,011 congregations, is the largest church, while the Presbyterian Church in America is also significant, with 112 congregations and 23,000 adherents; the EPC has around 50 congregations, as well as the ECO. The fourth-largest Protestant denomination, the United Church of Christ, has 180,000 members and 627 congregations. American Baptist Churches USA (Northern Baptist Convention) is based in King of Prussia, Pennsylvania.