  ==Kingston Upon Hull?== I dont see how Hull can have an LUZ over half a million as this article and its source, List of metropolitan areas in the United Kingdom, which give figures higher than the ones used here for pretty much every other LUZ gives it a lot lower figure.  The only thing i can imagine which gives Hull such a high figure is that includes the whole of Humberside with large towns such as Scunthorpe and Grimsby. I think a similar situation is there for Britstol which LUZ is the whole of Avon.  Other mysteries in this data is why it doesnt give data for a number of large english urban areas eg Bournemouth, Middlesbrough and Southampton. The urban audit also states that it doesnt include them all To ensure that large and medium-sized cities are equally represented in the Urban Audit, in some of the larger Member States not all large cities could be included. the above is from there. So does that mean you cant compare all cities properly because some large important ones aren't included.   Also they have an LUZ for liverpool and Wirral which have the exact same population just two different names.   