If you are in SF, this is partially due to how the tech industry distorts the sex ratio there: http://pics.city-data.com/agegraph/2455.png http://pics.city-dat

If you are in SF, this is partially due to how the tech industry distorts the sex ratio there: http://pics.city-data.com/agegraph/2455.png http://pics.city-data.com/agegraph/2455.png (This is for residents of SF only, so it won't account for any differences that might arise due to commuters who live outside SF) Edit, source page: http://www.city-data.com/housing/houses-San-Francisco-California.html http://www.city-data.com/housing/houses-San-Francisco-Califo...