When will the Amish population growth rate slow down?

[It’s so Joever]

A lot of them may assimilate out of the “Amish way” probably which will cause them to both not identify so much as Amish but more importantly will reduce their birth rates. This will be most prevalent in Lancaster, less so in rural Ohio but still a trend. This will probably be enough to slow down the actual rate of self identifying Amish by the 2050s.

Another likelier possibility is that the actual church liberalizes which is hard to imagine now but not impossible. That will mean the birth rate will decline eventually like with Catholics in Quebec.