The Top 10 Most Dangerous London Boroughs (Updated for 2019) 10) Hackney. The London Borough of Hackney is an area of Inner London which spans parts of East London and North London. 9) Croydon. Croydon is a South London borough located just over nine miles from Charing Cross. 8) Brent. 7) Haringey. 6) Tower Hamlets. 5) Lambeth. 4) Southwark. 3) Camden.