Can someone please tell me where i can locate a center for abused senior women?

i need to get away from my dad who abuses me { hes severly alzheimered} and when angered he will seek me out and abuse me,ive been punched in the face and choked,i see no end with this behavior pattern of my dads this started last year,and as recent as july hes caused me physical pain and emotionally upset me.i know this man is mentally ill and yet my brother thinks dad is a normal 97 yr old,with no problems.the aide we have swears that dad is a weak person,weak? hes pushed me on the floor and attempted to throttle me,sitting on me sos i couldnt move! to get away from his death grip i had no alternative but to knee him in the groin,then he moved and i took off into my room and locked the door.hes going to kill me someday! i now have a deep rooted fear of my dad.i do not want to ever do this again ,but i cant help thinking that my dad will do this again soon.i need to be out of his way and leave the house i lived in for 13 years.