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Porirua CityPopulation forecast

Titahi Bay South-Mana Island

Population, households and dwellings

The number of dwellings in Titahi Bay South-Mana Island is forecast to grow from 1,331 in 2013 to 1,551 in 2048, with the average household size falling from 2.81 to 2.69 by 2048.

This summary shows the results of the forecasts for population, households and dwellings in Titahi Bay South-Mana Island. 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
Titahi Bay South-Mana IslandForecast year
Summary20132018202320282033203820432048
Population3,6913,7323,7873,8653,9203,9984,0924,195
Change in population (5yrs)--415678557795103
Average annual change--0.22%0.30%0.41%0.28%0.39%0.47%0.50%
Households1,2771,3161,3581,3881,4171,4501,4851,518
Average household size2.812.762.722.702.682.682.682.69
Population in non private dwellings979797117117117117117
Dwellings1,3311,3571,3871,4171,4471,4811,5161,551
Dwelling occupancy rate95.9496.9897.9197.9597.9397.9197.9697.87
Population and household forecasts, 2013 to 2048, prepared by .id , the population experts, November 2019.

Key findings

In 2013, the total population of Titahi Bay South-Mana Island was estimated to be 3,691 people. It is expected to increase by over 174 people to 3,865 by 2028, at an average annual growth rate of 0.31%. This is based on an increase of over 111 households during the period, with the average number of persons per household falling from 2.81 to 2.70 by 2028.

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