Bob Katter and other MPs from the Katter Australian Party and One Nation have called for Queensland to be split into two states.
Queensland politicians who support the divide say the north should rule itself with its own economy, parliament, name, flag and constitution.
Katter Party MP Robbie Katter said the disparity between voters in the north and west and those in the state's south is too great, that there is a disconnect between them, and that their values are not the same.