My understanding is that some of the slaves who were brought from Africa to North America/USA were Muslim, but their numbers were fairly small. And even for those who were muslim, once they got here their religion was forced on them by their White masters who were Christians. Few of the slaves who were born here were willing to risk adopting Islam or any other religion except Christianity fearing their master's reaction.
Also, there wasn't much chance for a significant "White" population from Muslim countries to come here and settle, and even if they had, they would have been pretty much set aside and even ostracised by mainstream American society of the time. So there wasn't much chance for a significant Muslim minority to develop in The USA at that time.