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Members of this conservative Christian faith came to Pennsylvania in the early 18th century to escape persecution in Europe for their Anabaptist beliefs. The Pennsylvania Amish community in Lancaster County is the oldest and largest Amish community in the United States, numbering about 30,000. The population has more than doubled in size in the past 20 years. The Amish have their roots in the Mennonite community.
There are about 200,000 Old Order Amish living in more than 200 settlements in the United States and Canada; the largest communities are in Pennsylvania, Ohio, Indiana, Iowa, Illinois, and Kansas, and others exist in Wisconsin, Missouri, and Minnesota.