Bethnal Green was a civil parish and a metropolitan borough of the County of London between 1899 and 1965, when it was merged with the Metropolitan Borough of Stepney and the Metropolitan Borough of Poplar to form the London Borough of Tower Hamlets.

Poplar was a local government district in the metropolitan area of London, England. It was formed as a district of the Metropolis in 1855 and became a metropolitan borough in the County of London in 1900. It comprised Poplar, Millwall, Bromley-by-Bow and Bow as well as Old Ford, Fish Island and Cubitt Town.