There are definitely more teenagers that love Twilight, sometimes I feel like a freak :D, but now I see there are ppl about my age who r absolutely obsessed with Twilight like me, it makes me happy....I'm 24, 25 in a month, and I guess I'll never grow up :D
I doesn't matter what age we r, we're allowed to love, watch, read and listen whatever we like!
I'm 19. I know of a few people my age in college/university who love Twilight, be it the books or just the movie.
I've heard about lots of fans who are in their twenties. And, I can't be sure, but on plenty of interviews I've watched, lots of the fans look to be older teens or in their twenties. And there are quite a few fans in their twenties right here on Fanpop I think, which I'm glad about because at first I was worried that at 19 I was older than most of the fanpoppers =/ but clearly I'm not an old fogey.
You can't always go by the age range something is 'aimed' at, or what people think is the majority - Harry Potter has huge fans in their twenties, thirties, and forties. And Hannah Montana has fans in their twenties! and these are supposedly for young kids.