The Christian Reformed Church is a Protestant denomination with 276,000 members in 982 local congregations in the United States and Canada. Rooted in the Reformed churches in the Netherlands, the Christian Reformed Church was founded in 1857 by Dutch immigrants in Michigan who left the Reformed Church in America. Since the 1960s, the denomination has worked to become multiethnic. It has ministries in more than 30 countries and services in North America are conducted in more than a dozen languages. It is organized into 47 regional bodies called classes.
Congregations are particularly numerous in Michigan, Ontario, California, and Iowa.