At the time of the last census in 2011 27,000 people identified themselves as born in Bulgaria. They were living mainly in North London, particularly Haringey and Waltham Forest, and in Newham in the east of the city.
Bulgaria joined the EU in 2007 and restrictions placed on its citizens preventing them from coming freely to the UK to work were lifted at the beginning of 2014. The latest estimate in the Annual Population Survey suggests that their numbers had increased to 32,000 in 2014.
There has been a much greater increase in Romanian-born people coming to London, who were also allowed free movement into Britain at the same time.