"I'm completely happy and feeling ecstatic. It hasn't even sunk in yet. I think when I'm lying in bed tonight it'll finally sink in that I won."
Dawson, who teaches at Southern Cross Campus, said she wants to use the victory to help make an impact on the education sector - and is looking forward to seeing how her pupils, and the staff room, react at school on Monday morning.
"This win means I have a huge platform, I really want to encourage young people to stay in school, get educated and follow their dreams," she said.
"It's going to be interesting when I go back to work on Monday."
A total of 246 women entered the pageant a year ago, before being whittled down on elimination days to 75 and then 20 for the grand finale.
Dawson, who wins a new car for a year, will now represent New Zealand at the international final in the Philippines in January.