The number of women riding around here has skyrocketed since I started riding in 2000. Even my son noticed this when he came to visit a few years ago, after riding in the late nineties until 2003. I see all kinds of women riding, road bikes, hybrids, beginners, serious roadies. I see women commuting, too.
However, when I ride at 5:30 AM alone, or with DH, the groups I see riding are men. I see a few lone women here and there. I drive along a newer bike trail on the way home from work and at this time of year, there are lots of women there, running or riding hybrids, cruisers. This is good.
Of course, even though we don't have a huge cycling infrastructure, this is a cycling mecca of sorts. Every year it gets bigger and bigger.