I was a bit puzzled to read that Emma was set in Highbury. Highbury is in north London. I used to hear it most in connection with Arsenal football club. It is quite a built up area. I wondered whether in Austen's time it was just a village miles away from London. However, I am sure it was not sixteen miles away. Then I watched a YouTube debate on who was greater: Austen or Emily Bronte; and the professor supporting Austen said that in Surrey Mr Elton is what evil looks like. Highbury is definitely not in Surrey. The county borders have not been redrawn that much. I wondered if there was a small village called Highbury in Surrey somewhere, but I have never heard of one. I gather the name is fictional in Emma. I suppose it would have to be as the community is so small. If Austen had situated Emma in a real village or small market town, there would be a temptation to identify characters in the books with real people.