New Zealand's top model export, Rachel Hunter, had a modest 8,000 followers.
Online teen sensation Jamie Curry had a huge following of 155,000, making her the biggest fashion/lifestyle tweeter.
But the Kiwi personalities don't compare to the likes of Justin Bieber (43 million followers), Katy Perry (41 million) and Lady Gaga (39 million).
Erika Pearson, senior lecturer in media, film and communications at Otago University, said she wasn't surprised that sport stars were at the top of the list. "We hold them up as heroes."
Dr Pearson said comedians such as Darby and Henwood were always popular because they used Twitter as another performance medium.
The site had helped to make national personalities more approachable, breaking down the barriers between the famous and non-famous, she said.
Twitter has 200 million active users worldwide who tweet more than 500 million times a day.
For information on downloading the Twitter app, visit: https://twitter.com/download