What creates this imbalance? Don't more men die from accidents, and there's a slightly lower (like 0.5%) number of male people born? Is there some part of the country with far more women?
What region are you talking about? At least globally, there seem to be more men born than women.[1] Also seems to hold for the US[2].
[1] https://upload.wikimedia.org/wikipedia/commons/f/f6/Global_P...
[2] https://en.wikipedia.org/wiki/File:USA_Population_Pyramid.sv...