I’m from New England and did not know anyone going into my first year at Tech. For me, it wasn’t hard to adapt at all. There is a huge diversity at Tech, and from what I’ve seen, VA itself is really diverse. 30% of students are out of state, so you aren’t alone!
Also, if you haven’t heard of it, VT has a great program called Summer Academy that allows incoming students to start classes during the second summer session instead of the fall. It’s a great way to transition to VT, especially if you won’t be knowing anyone. You can find more information here: http://www.vtsa.edm.vt.edu/index.html
I did it before my freshmen year and can’t recommend it enough!