Hounslow () is a large suburban town in West London located west-southwest of Charing Cross. The majority of Hounslow is situated within the London Borough of Hounslow, it is one of the borough's five major towns (alongside Chiswick, Brentford, Isleworth and Feltham) whilst also acting as its administrative centre. Heathrow Airport is in the London Borough of Hillingdon, whilst the southern portion of Hounslow adjacent to the station is located within the London Borough of Richmond-upon-Thames. Hounslow, covering the TW3, TW4, TW5 and TW6 postal code areas, is identified as a major metropolitan centre in the London Plan.