Myself, a woman, I am a minimalist, and based on blogs and blog comments I have seen, I am finding more women are minimalists.
However, I believe men may be more likely to own less things, which may lend their lives to minimalism more-so than a woman's. Especially when you consider the "super soccer and career mom" role that many women take on as opposed to a minimalist's lifestyle, which suggests taking on less activities so life is filled more with "want to" than "have to" activities.
I personally love minimalism! I am not going as far as having 15 items, like one man has publicized (all power to him, but for me that is too much borrowing from others). But I do not own what is excess for me, which means everything I own can fit into a compact car.