Population mix Wellington City's population is transient compared with other parts of the country.
It has relatively more people aged 20-34 than other areas, relatively fewer elderly people and fewer children. Work force Just over a third of the population in the Wellington region is aged between 15 and 64 years, which is the highest proportion of working age population for any region. Wellington people earn the highest median incomes in New Zealand. Wellington contains the highest proportion of people working in communications services, finance and insurance, property and business services industries in New Zealand. Wellington was the first Capital City to see in the new millennium.