Ask HN: Best way to find HN readers in my local area?

I am trying to find like-minded people in my local area (Sheffield, UK) to meet up with.

I'm sure there are people around here and in other places around the world which aren't major cities that would like to know if fellow HN readers exist in their area. It would be frustrating to find out that you live down the road from someone who was building a startup but never knew they existed!

Is there a service / site that could help with this?

Cheers!