12 Tones of London

London's demographics explored by processing 2011 Census data with a statistical sorting method called cluster analysis. Attention is then focused on the sounds of the 12 archetypal council wards emerging from the study.

Cluster 6

Highest for professional occupations. Second highest for directors/senior officials. Lowest for long-term unemployed, and Bangladeshi and African populations. Second lowest for skilled trades, caring/leisure, sales, process and elementary occupations, and Other Asian populations.


Mean age: 37.2.

Main occupation groups – Professional: 31.7%. Technical: 21.5%. Directors/senior officials: 16.6%. Administrative: 9.5%. Caring/leisure: 5.4%.

Long-term unemployed: 1.6%.

Main ethnic groups – White British: 61.7%. Other White: 15.5%. Mixed Race: 4.5%. Indian: 3%. Other Asian: 3%.

English as main household language: 81.6%.

Households without a car: 33.4%.


Residents per hectare: 66.

Main land use types – Domestic gardens: 29.2%. Green space: 26.5%. Roads: 15%. Domestic buildings: 12.7%. Non-domestic buildings: 4.9%.

Main housing types – Flats: 33.8%. Terraced: 22.7%. Conversions: 18.7%. Terraced: 22.7%. Semi-detached: 16.2%.

Main tenure types – Mortgaged: 30.7%. Privately rented: 28.9%. Owned outright: 26.3%. Social housing: 12.6%.


Total wards: 66.

Wards with silhouette values above 0.2 in descending order: Twickenham Riverside (Richmond upon Thames), Chiswick Riverside (Hounslow), South Richmond (Richmond upon Thames), Mortlake and Barnes (Richmond upon Thames), Muswell Hill (Haringey), St Margarets and North Twickenham (Richmond upon Thames), Chiswick Homefields (Hounslow), Wandsworth Common (Wandsworth), North Richmond (Richmond upon Thames), Blackheath (Greenwich), Thamesfield (Wandsworth), Fortis Green (Haringey), Highgate (Haringey), Barnes (Richmond upon Thames), Kew (Richmond upon Thames), Palace Riverside (Hammersmith and Fulham), Wimbledon Park (Merton), Village (Southwark), Raynes Park (Merton), Alexandra (Haringey), Trinity (Merton), Hillside (Merton), Hampstead Town (Camden), Northcote (Wandwworth), St Mark's (Kingston upon Thames), Crouch End (Haringey), Canbury (Kingston upon Thames), Snaresbrook (Redbridge), Turnham Green (Hounslow), East Putney (Wandsworth), South Twickenham (Richmond upon Thames), Southfield (Ealing), Highgate (Camden), Surbiton Hill (Kingston upon Thames), Dundonald (Merton), Hampton Wick (Richmond upon Thames), Balham (Wandsworth), Northfield (Ealing), Walpole (Ealing), Nightingale (Wandsworth).

Medoid/lowest average distance within: Chiswick Riverside (Hounslow) 17.37.

Highest silhouette value: Twickenham Riverside (Richmond upon Thames) 0.4583.