I had no joy with Meetup, nothing around, so googled local charity groups and found one in my area - I've been going for a year now, unfortunately it's almost always parents of kids with AS/ASD, so I generally end up either talking to NT's about their kids or playing with the kids when they come along.. it's not bad and it's a morning out once a month.
I had more success with a local mental health charity I also googled - people there have a wide range of issues, but I get along ok there, they have a few of activity groups a month - coffee morning, lunch, bowling..
It's definitely worth looking for more than just Aspergers groups out there.