Is their an actual definition of A vs B vs C Neighborhoods. In other words what constitutes the specific grade.

[Adam Bergman]

Hello all. I have been reading about a,b, and c neighborhoods on two different posts as i browsed the forums today. Question what constitutes each grade? are their any specifications or is it just a generalizations, for example

A=upper middle class+/high income or business owners

B=working middle class/median salery of $80,000+

C=Section 8/low income

D=warzone

I just happened to put in anything above just for examples. Sorry if I posted in the wrong place but I am intending to disect the grade in corelation to renting out a property more so then flipping.