Islam is London's largest minority religion. There were 607,083 Muslims reported in the 2001 census in the Greater London area. In the 2011 census Office for National Statistics, the proportion of Muslims in London had risen to 12.4% of the population (40% of England's Muslims). In the boroughs of Newham and Tower Hamlets, the percentages of Muslims were over 30%.
The first Muslims to settle in London were lascars, that is, Bengali and Yemeni sailors from the 19th century. Many Muslims from the Commonwealth served in the British Army and British Indian Army in the First and Second World Wars. In the wave of immigration that followed the Second World War, many Muslims emigrated to the UK from these Commonwealth countries and former colonies. Following the partition of India, many came from Pakistan especially the Punjab and Azad Kashmir and the Indian state of Gujarat. This initial wave of immigration of the 1950s and 60s was followed by migrants from Cyprus, Sylhet Bangladesh, formerly East Pakistan. Many Muslims also arrived from various other countries, although the percentage is far smaller than from South Asia. Amongst those from other countries, Muslims from Yemen, Somalia and Turkey have significant numbers, whereas those from Malaysia, Nigeria, Ghana and Kenya represent smaller fractions. Today, London's Muslims come from all over the world and there is a small but growing group of converts.