I was mostly curious because a while back, CNN referred to Houston as South Texas, and I have a problem with that.
I have even seen folks refer to SA as South Texas, and I have a problem with that too.
A buddy I used to work with called anything south of Alice, south Texas and I thought for a moment then agreed. That’s about right.
Corpus, in my opinion would be southeast Texas, albeit still south Texas.
But that’s just me.