Sally Haslanger (MIT) has an interesting article on-line about the situation for women (and, to some extent, racial minorities) in academic philosophy. I would call the attention of readers, in particular, to the data in Appendix 3 on the percentage of women on the faculty of the top 20 departments. The leading departments with the highest proportion of tenure-stream female faculty are Columbia (36%), Yale (35%), Arizona (28%), Stanford (25%), and Harvard (25%). The departments with the lowest percentage of female faculty are Michigan (4%), Texas (7%), Notre Dame (12%), Rutgers (13%), and North Carolina (13%). Since the time of the study (2006), Michigan has added a second tenured female philosopher (Sarah Buss from Iowa), which means the ignominious distinction for having the lowest percentage of female faculty now probably goes to Texas (which, alas, does not surprise me).
Readers may also want to take special note of the psychological literature on unconscious bias that Professor Haslanger discusses.