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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 31,176 in 2048, with the average household size falling from 3.07 to 2.88 by 2048.

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
Change in population (5yrs)--3,4584,7256,7687,3075,7713,5722,326
Average annual change--1.26%1.60%2.10%2.04%1.48%0.86%0.54%
Average household size3.072.992.962.942.932.912.902.88
Population in non private dwellings709709779819869919919919
Dwelling occupancy rate95.2797.4296.7396.7096.7296.7096.7396.73
Population and household forecasts, 2013 to 2048, prepared by .id (informed decisions), November 2019.

Key findings

In 2013, the total population of Porirua City was estimated to be 53,700 people. It is expected to increase by over 14,951 people to 68,651 by 2028, at an average annual growth rate of 1.65%. This is based on an increase of over 5,847 households during the period, with the average number of persons per household falling from 3.07 to 2.94 by 2028.

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