Have you ever been to somewhere like Half Moon Bay, near San Francisco? That's a town isn't it? I know it's a 'city' (everything seems to be a 'city' in the US) but it's town-sized. You could walk to everything there. It seems to have a bustling main street. I see lots of these little towns in the US. Carmel? Morro Bay? These are just the ones I can remember being in myself and thinking these are perfect little walkable towns.