The
Brighton and Hove Built-up area or
Brighton/Worthing/Littlehampton conurbation has a population of 474,485 (2011 census), making it
England's 12th largest conurbation. This was an increase of around 3 rom the 2001 population of 461,181. Named the Brighton/Worthing/Littlehampton conurbation by the
Office for National Statistics for the 2001 census and Brighton and Hove Built-up area for the 2011 census, the area has also been known as "Greater Brighton" (although Greater Brighton can include
Lewes). The conurbation dominates
West and
East Sussex, with around 1 in 3 of Sussex's population living within its boundaries. It is also the second largest conurbation in the
South East region of
England and the second largest conurbation on the
English Channel coast, in either
England or
France. In both of these cases the Brighton conurbation trails the
Southampton and Portsmouth conurbation. This identified conurbation was the largest on the Channel before Portsmouth and Southampton's conurbations were combined for much official data analysis after the 2011 census.