I would say it is close to 50/50 here (I'm female), but in my building it probably leans towards more women than men. It's a college town, so most college-aged women are not so much worried about their hair (or clothes for that matter). In the winter it does skew a wee bit towards men, but then again the temperature can be sub-zero. I am not inclined to go in the winter not because I am a wimp (since I get enough layers), but more because I am concerned about exposure if I had to stop and change a flat or something.