Immigration and birthrate (not conversions) are cited as the reasons for the expansion from 2010-2020.  Of course, Biden, will be be helping that expansion as he promises to bring 125,000 refugees, many of them Muslims, to America beginning on October first—less than 4 months from now. “The continued growth of American Muslim houses of worship … Continue reading CAIR Trumpets 31% Increase in Number of Mosques as US Muslim Population Expands