“It is not because you are the most numerous of peoples that Hashem set His heart on you and chose you—indeed, you are the smallest of peoples” Deuteronomy 7:7 (The Israel Bible™)
Pew Research Center estimates that there are about 3.45 million Muslims of all ages living in the US, making up about 1.1% of the population.
Muslims in the US are still not as numerous as American Jews, according to Pew, but its projections show a much faster growth for US Muslims compared to the Jewish population.
“By 2040, Muslims will replace Jews as the nation’s second-largest religious group after Christians,” according to Pew, “and by 2050, the US Muslim population is projected to reach 8.1 million, or 2.1% of the nation’s total population — nearly twice the share of today.”
This estimate is based on information from Pew’s 2017 survey of US Muslims, as well as on official Census Bureau data.
The growth of the Muslim community in the US has been breathtakingly rapid, according to Pew, from an estimated 2.35 million Muslims of all ages (including 1.5 million adults) in 2007, through 2.75 million (including 1.8 million adults) in 2011, to the current whopping 3.45 million.
The growth rate of the Muslim population has been around 100,000 per year, which Pew attribute to higher fertility rates among Muslim Americans, and the continued Muslim immigration to the US.