The Harrow Road is an ancient route in London which runs from Paddington in a northwesterly direction towards Harrow, northwest London. It is also the name given to the immediate surrounding area of Queens Park and Kensal Green, straddling the NW10, W10 and W9 postcodes.With minor deviations in the 19th and 20th centuries, the route remains otherwise unaltered. There are dozens of other existing roads throughout the United Kingdom using the same name which do not lead to or from Harrow but merely use the name of the town or, in some cases, a person of that name.Harrow Road is also a ward of the City of Westminster. The population of this ward at the 2011 Census was 12,034.