The American Volleyball Coaches Association (AVCA) put together a set of info graphics which shows how big women’s collegiate volleyball is in the States, both in terms of teams and scholarship funding. Here’s what the structure looks like (Note there was clearly some cut-paste issue with the NCAA Division numbers. The D1 number is correct. If you do the math you’ll find that leaves 724 between D2 and D3. The larger share will be D3):
Men’s volleyball is unfortunately only a fraction of the size of the women’s game.