Waitakere City was a territorial authority in West Auckland, New Zealand; it was governed by the Waitakere City Council from 1989 to 2010. It …Waitakere City was a territorial authority in West Auckland, New Zealand; it was governed by the Waitakere City Council from 1989 to 2010. It was New Zealand's fifth-largest city, with an annual growth of about 2%. In 2010 the council was amalgamated with the other authorities of the Auckland Region to form the current Auckland Council.