The South Western postcode area includes postcode districts on both sides of the [[River Thames]], although the South Western district (SW1-SW10) is entirely north of the river and the Battersea district (SW11-SW20) is entirely south of the river. The SW1 postcode district covers the area of central London on the north bank of the [[River Thames]], roughly between [[Hungerford Bridge]] and [[Chelsea Bridge]]. It includes [[Pimlico]], [[Belgravia]] and parts of [[Westminster]] and [[Brompton, Kensington|Brompton]]. It contains [[Whitehall]], [[Westminster Abbey]], [[Westminster School]], the [[Tate Gallery]], [[Dolphin Square]] and [[Thames House]]. SW2–SW10 form the inner northeastern part of the postcode area, with the SW3, SW5, SW6, SW7 and SW10 districts north of the river. SW11–SW20 forms the outer southwestern part of the postcode area and is entirely south of the River Thames. The postcode area includes all of the [[London Borough of Wandsworth]], the western portion of the [[London Borough of Lambeth]], the southern sections of the [[City of Westminster]] and the [[Royal Borough of Kensington and Chelsea]], the northeastern area of the [[London Borough of Richmond upon Thames]] and the northern sections of the [[London Borough of Merton]] and [[London Borough of Croydon]].
