Islam sanctions polygamy — more specifically, polygyny — allowing Muslim men to keep up to four wives at once. Though marrying a second woman while remaining married to the first is prohibited across the Western world, including all 50 U.S. states, a Muslim can circumvent the law by wedding one woman in a government-recognized marriage and joining with others in unlicensed religious unions devoid of legal standing.
As Muslims have grown more numerous in the West, so too have Muslim polygamists. France, home to the largest Islamic population in Western Europe, was estimated in 2006 to host 16,000 to 20,000 polygamous families — almost all Muslim — containing 180,000 total people, including children.
In the United States, such Muslims may have already reached numerical parity with their fundamentalist-Mormon counterparts; as many as 100,000 Muslims reside in multi-wife families, and the phenomenon has gained particular traction among black Muslims. [National Review Online] Read more