Would you say I am a Londoner?

totally depends on your knowledge of London, to me a 'londoner' is someone who knows their way around London well, knows how to act in different parts and generally understands the tube/over rail/ bus system. And who knows the best shops, restaurants etc. I think being a 'londoner' is something that you leanr & earn, it's not a birth right. So no, i wouldn't call you a 'londoner'