Amish families are dispersed across 29 states —
stretching from Montana to Florida — within 456 autonomous settlements, a sharp
increase from the 179 settlements listed in the 1990 census. Analysts see no
reason for this trend to slow and project the number of believers to approach 1
million by the late 2050s.
http://globalwarming-arclein.blogspot.ca/2012/08/amish-population-booming.html?utm_source=BP_recent