[zeristor]

What about Southwark?

That has a cathedral too.

[globular-toast]

A cathedral is neither necessary nor sufficient for city status. City status in the UK is given by the monarch and that's all there is to it. Cambridge is a city without a cathedral and Bury St Edmunds is a town with a cathedral.

[walthamstow]

Indeed. Southend got city status mostly because their MP was murdered.

[zeristor]

As is Southwell.