I remember there were polls about it, but I cannot find them.
This one user is convinced the users here are literally below the age of highschool. I'm 25 myself and remember seeing people above the age of my parents posting, so I wonder if there's information on the ~population across ages.
Mid 30s myself. From my experience, in Hexbear at least, we tend to skew millennial and older, though there are a couple zoomer posters. I know there are quite a few Gen-X and Boomers here too.