[a fool in paradise]

61% of all muslims in America are first generation immigrants.

[Arthur Wildfire! March]

I found a similar stat:

A 63% majority of Muslim Americans are first-generation immigrants to the U.S., with 45% having arrived in the U.S. since 1990. By nearly two-to-one (61% to 31%), Muslim immigrants believe there is more than one.

people-press.org/files/2011/08/muslim-american-report.pdf