But do we understand how it evolved over time? Did the gender balance ever change? What jobs do people have now?
How fast did it change? Why?
Between 1801 and 2011, London's population grew from around 1 million to over 8 million people. But which of London boroughs hold most of the population? Did this change over time? Click 'Replay' to find out.
The overall employment rate stays rather static between 67.12% and 68.53%.
The rate makes a rapid increase consistently over 40 years with a small dip of -0.79% between 1981 and 1991.