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Porirua CityPopulation forecast

Porirua City

Population, households and dwellings

The number of dwellings in Porirua City is forecast to grow from 18,104 in 2013 to 23,882 in 2031, with the average household size falling from 3.07 to 2.93 by 2031.

This summary shows the results of the forecasts for population, households and dwellings in Porirua City. The period 2013 to 2028, as the short to medium term, is likely to be the most accurate and useful forecast information for immediate planning purposes.

It is important to look at the relationship between population and average household size. If the average household size is falling, then there will need to be growth in the number of households (and dwellings for them to live in) to maintain or grow the population.

Forecast population, households and dwellings
Porirua CityForecast year
Summary2013201820232028203320382043
Population53,70057,08261,76368,49575,77081,50985,149
Change in population (5yrs)--3,3824,6816,7317,2755,7393,640
Average annual change--1.23%1.59%2.09%2.04%1.47%0.88%
Households17,24718,86220,64923,09625,62727,72429,131
Average household size3.072.992.952.932.922.912.89
Population in non private dwellings709709779819869919919
Dwellings18,10419,36121,34823,88226,49728,66930,116
Dwelling occupancy rate95.2797.4296.7396.7196.7296.7096.73
Population and household forecasts, 2013 to 2043, prepared by .id , the population experts, January 2020.

Key findings

In 2013, the total population of Porirua City was estimated to be 53,700 people. It is expected to increase by over 14,795 people to 68,495 by 2028, at an average annual growth rate of 1.64%. This is based on an increase of over 5,849 households during the period, with the average number of persons per household falling from 3.07 to 2.93 by 2028.

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