The City function is pretty useless looking at it closely. It seems that it's not exactly accurate for the UK hence the reason Brentwood keeps showing up - it's the main hub for one of the major UK ISP's i.e. no matter the location in the UK people on that ISP go through Brentwood before moving out into the wider web.
Even so - nice to see the UK doing well for the more peverse terms
We have to be good at something even if it is just weird bedroom activities. Long live suburbia.