Regions are the largest territories of local government in New Zealand. Twelve of the regions have a regional council and are further divided into territorial authorities, which have either a district council or a city council. However there are a few unitary authorities and one district which is considered a separate region (the Chatham Islands).
... town the population is spread out with 28.2% under the age of 18, 7.5% from 18 to 24, 33.5% from 25 to 44, 23.9% from 45 to 64, and 6.9% who are 65 years of age or older. ...