I don't go over to the Technology resources department at my school much, but I think there's slightly more women than you'd usually see in equivalent tech departments at private companies. None at the highest positions, though, and I can't speak for how they're treated by their male colleagues. The men in TR that I've had cause to work with have never expressed anything to me that I think is sexist, but I also have 99% of my dealings with them via email, so I don't know if that changes anything. I like to think not).

(Even when I managed to corrupt a file badly enough that it brought down a server and refused to let any admin person delete it so we had to restore from backup, they were nice to me! I still have no idea how I managed to do that.)