Our parish allows communion in the hand (I don't think the pastor can forbid it, though we have no altar girls), but when I've been watching while waiting our pew's turn, I've noticed that the majority receive on the tongue. I'd estimate about two-thirds.
My pastor (a very reverent Novus Ordo guy) recently told me that with a few years we can expect to be receiving the host on the tongue again. There are just too many abuses with receiving it in the hands.
I suggest all of us set the example and reverently receive Communion on the tongue. I know that because I started two other ladies now receive on the tongue.