I briefly ran a meet-up group for poly people in my city. There's one for my province, but it's mostly out of the other city.
It had a really good turnout for the first couple meetings, then it started to die off. Eventually I abandoned it too and I don't know where it ended up after that.
Local groups depend a lot on the size of your city and the amount of interest. You can always try it and see where it goes, but make sure you understand that you might spend a lot of time sitting alone waiting for people to show up. Bring a book.
“As I am sure any cat owner will be able to tell you,
someone else putting you in a box is entirely different
from getting into a box yourself.” —bisexualbaker