Hello...

Any help would be appreciated, When I was probably 12, 13 somewhere in there so early 90's I read a book that I am sure came from the library at the time. I can not remember the name of this book, but I can remember it is a book I am dying to get a hold of so my child can read it someday.

What I can remember is all adults (over 18 from what I can remember) are dead due to disease? Primary setting is a subdivision there are multiple groups of teens to young kids fending for themselves and they group up for survival. Main group is ran by a female teen and I think she has a brother. I can remember then having to break into grocery stores for supplies. I can't remember really anything past what I have put here. I hope someone will see this and either have more info or even possibly a title.

The girl who owned a city or something like that

The Tribe, I think it was made into a TV series