High Quality Content by WIKIPEDIA articles! South London is the southern part of London, England. Two criteria are used to determine whether a district is in South London: whether it is south of the River Thames and whether it falls within the South London postal code areas (SE or SW). Districts that satisfy both criteria are universally considered as 'South London'. Districts that satisfy only one criterion are judged on a case-by-case basis. The Boundary Commission for England defines South London as the London boroughs of Bexley, Bromley, Croydon, Greenwich, Kingston, Lambeth, Lewisham, Merton, Richmond, Southwark, Sutton and Wandsworth. The Boundary Commission was established in 1986, for the purposes of determining the boundaries of constituencies for elections to the UK Parliament. The commission defined South London as consisting of every borough south of the River Thames.