The Amish are expanding their presence in states far beyond Pennsylvania Dutch country as they search for affordable farmland to accommodate a population that has nearly doubled in the past 16 years, a new study found.

States such as Missouri, Kentucky, and Minnesota have seen increases in their Amish populations of more than 130%. The Amish now number an estimated 227,000 nationwide, up from 123,000 in 1992, according to researchers from Elizabethtown College’s Young Center for Anabaptist and Pietist Studies.

Over the same period, Amish settlements have been established in seven new states, putting them in at least 28 states from coast to coast. The new states are: Arkansas, Colorado, Maine, Mississippi, Nebraska, Washington, and West Virginia.

“When we think they might be dying out or merely surviving, they are actually thriving,” said Elizabethtown professor Don Kraybill, a leading expert on the Amish who shared his research from an upcoming book with The Associated Press