Perhaps the most well-used results of the survey were the Maps of London Poverty where the levels of poverty and wealth found by the survey investigators was mapped out street by street and colour coded.
There were seven classes shown on the maps represented by different colours:
Black - Lowest class including both vicious and semi-criminal.
Dark Blue - Very poor, casual, in chronic want.
Light Blue – Poor with an income of 18s. to 21s. a week for a moderate family.
Purple – Mixed, some poor others comfortable.
Pink - Fairly comfortable with good ordinary earnings.
Red - Middle class and well-to-do.
Yellow - Upper-middle and upper classes who were generally wealthy.
Streets identified with a combination of colours indicates that it contained a proportion of each of the represented classes; however, the colour codes on the maps do not always correspond with the poverty classification in the published survey. It can sometimes be difficult to interpret the map colours because the colours do not emphasise distinction because similar classes have colours which are not different enough so identification on individual streets more difficult.
Twelve poverty maps cover from Greenwich to Hammersmith, east/west and from Hampstead to Clapham, north/south. However, the City of London was not included in the survey so the City of London remains uncoloured and unclassified on the maps.
The 1889 edition of the poverty maps was based on information gathered from the School Board visitors. They used Stanford's 6 inches to 1 mile scale map of London and suburbs. The original working maps from this edition are held by the Museum of London which are hand-coloured and use the 1869 Ordnance Survey 1:2500 maps.
The 1898-9 edition of the maps, a comprehensive revision of the first series, were published in 1902 and 1903. The survey investigators who accompanied policemen on their beats also recorded their own impressions of each street and the comments put forward by the policemen. This information was used in updating the street classification used in 1889.















