Why is Texas labeled as a "Deep South State"?

[minionofmidas]

Because they don't know what they're talking about. Texas is the cross section of Upper South and Interior West.

Except the Southeastern part, which was part of the Black Belt before destroyed by Black emigration and White immigration.

[minionofmidas]

Where do you place "Southeastern Texas"? Anywhere around Houston and the lower Brazos Valley was Black majority in the second half of the 19th century; super heavily in some cases - notably Brazoria and Fort Bend (until their very low populations started to rise in the 1890s with all the incomers being White. Oil, I presume?)

But you're right, there's another historic Black majority pocket further north around Marshall and Longview. I didn't remember that, really the impressiveness of the Black percentages south of Houston and of their collapse is the only reason I remembered having looked at this stuff before.