Over four million Anabaptists live in the world today with adherents scattered across all inhabited continents. In addition to a number of minor Anabaptist groups, the most numerous include the Mennonites at 2.1 million, the German Baptist Brethren at 1.5 million, the Amish at 350,000 and the Hutterites at 200,000 (in Canada alone). In the 21st century, there are large cultural differences between assimilated Anabaptists, who do not differ much from evangelicals or mainline Protestants, and traditional groups like the Amish, the Old Colony Mennonites, the Old Order Mennonites, the Hutterites and the Old German Baptist Brethren.