The London Borough of Harrow is a London borough in north-west London, England, and forms part of Outer London. It borders four other London boroughs – Barnet to the east of ancient Watling Street, Brent to the south-east, Ealing to the south and Hillingdon to the west – plus the Hertfordshire districts of Three Rivers and Hertsmere to the north. The local authority is Harrow London Borough Council. The London borough was formed in 1965, based on boundaries that had been established in 1934. The borough is made up of three towns: Harrow proper, Pinner, and Stanmore, but also includes western parts of Edgware; it is of suburban character and includes some countryside in the northern outskirts.