Northwick Park is a London Underground station on the Metropolitan Line. It is in Zone 4, and lies between Harrow-on-the-Hill and Preston Road.
It is served by 'slow' trains (fast trains are non-stop between Wembley Park and Harrow-on-the-Hill). It takes an average time of 20 minutes from Baker Street Station.
It is close to Northwick Park Hospital, the Harrow campus of the University of Westminster, and the suburb of Kenton. Kenton station on the Bakerloo Line and London Overground's Watford DC Line is within walking distance. If a journey is chosen between the northern end of the Metropolitan line and stations on the Watford DC line on Transport for London's journey planner, walking between Kenton and Northwick Park is generally given as the quickest route.