The Reformed Church in America (RCA) is a mainline Reformed Protestant denomination in Canada and the United States. It has about 82,865 members. From its beginning in 1628 until 1819, it was the North American branch of the Dutch Reformed Church. In 2024, Pew Research estimated that approximately 0.1% of the US adult population, or about 260,000 people, self-identifies with the Reformed Church in America.
The RCA is a founding member of the National Council of Churches, the World Council of Churches (WCC), Christian Churches Together, and the World Communion of Reformed Churches (WCRC). Some parts of the denomination belong to the National Association of Evangelicals, the Canadian Council of Churches, and the Evangelical Fellowship of Canada. The denomination is in full communion with the Evangelical Lutheran Church in America, Presbyterian Church (USA), and United Church of Christ and is a denominational partner of the Christian Reformed Church in North America.