Reformed Church in the United States
The Reformed Church in the United States (RCUS) is a small conservative Reformed church, holding to classic five-point Calvinism. The denomination grew out of the settlements of German immigrants in the 18th century who originally associated with the Dutch Reformed Church (now the Reformed Church in America). In 1748, they founded their own synod. The majority of the denomination merged with the Evangelical Synod of North America in 1934 to form the Evangelical and Reformed Church, which in turn merged with the Congregational Christian Churches in 1957 to become the United Church of Christ. However, the Eureka Classis resisted the 1934 merger and out of it the RCUS was reformed. The denomination has about 4,000 members nationwide and is concentrated in the Upper Midwest.
The church is a member of the International Council of Reformed Churches and the North American Presbyterian and Reformed Council and maintains ecclesiastical relations with the Orthodox Presbyterian Church, the Canadian and American Reformed Churches, and the United Reformed Churches in North America.