The Metropolitan Borough of Hampstead was a Metropolitan borough of the County of London from 1900 to 1965, when it was amalgamated with the Metropolitan Borough of St Pancras and the Metropolitan Borough of Holborn to form the London Borough of Camden.It included Primrose Hill, Hampstead, Belsize Park, West Hampstead, South Hampstead, much of Hampstead Heath and part of Kilburn and Cricklewood. Some street signs still bear the 'Borough of Hampstead' name.