In message , John
writes

Unlike MIG I do not take any notice of artificial local govt.
boundaries - a place is defined by its postal area.

Really? Near to where I live is a road where the houses on the east side
have a SW London postcode, while those opposite start with a Twickenham
postcode and then revert to SW London, all within the space of 50 yards.
I suspect that the residents would probably define themselves as living
in Richmond, since that is far closer than Twickenham!

Postal areas (and more recently postcodes) were designed purely to
facilitate mail delivery, and are based on the positions of sorting
offices and the practicalities of postmen's rounds - nothing more.

--
Paul Terry