I've got maybe 600 and it's mostly adult fantasy and historical fiction.

I used to have over 1000 but I've been slowly getting rid of them in chunks of 50 at a time over the last few years (books I bought 10-15 years ago and never read or old YA I feel I've outgrown). I used to think I had to keep every book even if I hated it. I clean out the shelves every other year or so.