The London SW postcode area, commonly referred to as the SW (South Western) postcode region, is a collection of 20 postcode districts located in the English post town of London. It is the only area within the London post town to lie on both sides of the River Thames and is made up of the South Western operating district (including the subdivisions of postcode district SW1, as well as SW2 through SW10) and the Battersea operational district (encompassing SW11 through SW20). Mail for the region, as well as mail for the TW, KT, and GU postcode areas, is sorted at the Jubilee Mail Centre in Hounslow.
The SW district was where the postcode area first appeared in 1857. With the remainder going to SE, it obtained some of the very brief-lived S district’s land in 1868. In 1917, it was split up into numbered districts. The postcode districts SW1 to SW10 make up the South Western district, and the postcode districts SW11 to SW20 make up the portion that formerly had its headquarters in Battersea.
The most significant parish, chapel, topographical, or built environment feature names up to ten were listed alphabetically after the South Western head district, which was given the designation SW1. similar to the former “head district” of Battersea SW11.
Nine London Boroughs are partially covered by the SW postcode area. It includes the southern portions of the City of Westminster, the Royal Borough of Kensington and Chelsea, and the London Borough of Hammersmith and Fulham to the north of the River Thames. It includes all of the London Borough of Wandsworth, a portion of the London Borough of Lambeth on the west, a portion of the London Borough of Croydon in the north, a portion of the London Borough of Merton in the northwest, and a portion of the London Boroughs of Richmond upon Thames and Kingston upon Thames in the northeast.
Postcode district Post town Coverage Local authority area(s)
SW1A LONDON Whitehall, Buckingham Palace, the Houses of Parliament and west of St James’s Westminster
SW1E LONDON Northern ‘Victoria’ around Buckingham Gate (a street) to include both sides of part of Victoria Street Westminster
SW1H LONDON Surrounds of St James’s Park tube station centred on Broadway, Queen Anne’s Gate and Old Queen Street to include both sides of part of Victoria Street – derivation: Horse Guards Parade Westminster
SW1P LONDON A projection around Parliament Square. Nearby Westminster School to Westminster Cathedral to CCAL, University of the Arts, London (omitting all backstreets nearest to Vauxhall Bridge Road) – derivation: Parliament Square Westminster
SW1V LONDON between Vauxhall Bridge, Grosvenor (or Victoria Railway) Bridge and Victoria Station, taking in both sides of Vauxhall Bridge Road; includes Pimlico Westminster
SW1W LONDON South or lower Belgravia and Chelsea (a corner), from Sloane Square to Victoria Station to Grosvenor Waterside basin Westminster, Kensington and Chelsea
SW1X LONDON Rest of Belgravia (north of Eaton Square), Knightsbridge (eastern half) and Chelsea (a corner) Westminster, Kensington and Chelsea
SW1Y LONDON All but the west of St James’s Westminster
SW2 LONDON Brixton district: Brixton Hill, Tulse Hill (part), Brixton (part), Streatham Hill, Clapham (part), Eastern parts of Balham, Lambeth Lambeth
SW3 LONDON Chelsea district: Chelsea, Brompton, Knightsbridge (part) Kensington and Chelsea
SW4 LONDON Clapham district: Clapham, Stockwell (part) Lambeth, Wandsworth
SW5 LONDON Earls Court district: Earls Court Kensington and Chelsea
SW6 LONDON Fulham district: Fulham, Parsons Green Hammersmith and Fulham
SW7 LONDON South Kensington district: South Kensington, Knightsbridge (part) Kensington and Chelsea, Westminster
SW8 LONDON South Lambeth district: South Lambeth, Vauxhall, Nine Elms (east), Clapham (north), Stockwell (northwest), Oval (west) Lambeth, Wandsworth
SW9 LONDON Stockwell district: Brixton, Stockwell, Clapham (part), Oval (part) Lambeth
SW10 LONDON West Brompton district: West Brompton, Chelsea (part) Kensington and Chelsea, Hammersmith and Fulham
SW11 LONDON Battersea head district: Battersea, Clapham South, Nine Elms (west) Wandsworth, Lambeth
SW12 LONDON Balham district: Balham, Clapham South, Wandsworth Common (part) Wandsworth, Lambeth
SW13 LONDON Barnes district: Barnes Richmond upon Thames
SW14 LONDON Mortlake district: Mortlake, East Sheen Richmond upon Thames
SW15 LONDON Putney district: Putney, Roehampton, Kingston Vale, Putney Heath, Putney Vale, Richmond Park, Roehampton Vale Wandsworth, Kingston upon Thames, Richmond upon Thames
SW16 LONDON Streatham district: Streatham, Streatham Common, Norbury, Streatham Park, Furzedown, Streatham Vale, Mitcham Common, Pollards Hill, Eastfields, West Norwood (part) Lambeth, Croydon, Wandsworth, Merton
SW17 LONDON Tooting district: Tooting, Balham (part), Mitcham (part) Wandsworth, Merton
SW18 LONDON Wandsworth district: Wandsworth Town, Southfields, Earlsfield Wandsworth
SW19 LONDON Wimbledon district: Wimbledon, Colliers Wood, Merton Park, Merton Abbey, Southfields, Morden (part) Merton, Wandsworth
SW20 LONDON West Wimbledon district: Raynes Park, Lower Morden, Merton Park, Wimbledon Chase, very small part of the east of New Malden Merton, Kingston upon Thames