I agree the true South East is split into 3 voting areas which have 18 votes combined. That's about 33% of the votes cast above.
You are correct, according to
https://www2.census.gov/geo/pdfs/maps-data/maps/reference/us_regdiv.pdf
The four main regions of the US are:
I - Northeast which includes Division 1, New England and Division 2, Mid Atlantic
II - Midwest which includes Division 3, East North Central and Division 4, West North Central
III - South which includes Division 5, South Atlantic, Division 6, East South Central and Division 7, West South Central
IV - West which includes Division 8, Mountain and Division 9, Pacific
I wasn't sure how to create the poll with divisions inside of regions, so I just listed as individual divisions, trying to get a better idea of distribution with out being insane with a poll by individual States