a good place to start might be a health care person. or a women's organization.
if that's too daunting, maybe start with phoning a crisis line....they have a book of available resources in your area, and all the contact info. you don't need to be in an immediate emergency to phone them.
you could also go to some AA meetings and make some connections with others, at least tentatively.
if there is no one to intervene or help, then you will have to take steps yourself.
easier said than done, i realize.